How to fix common concrete slab problems

How to fix common concrete slab problems

When working with concrete, contractors may encounter a few different problems. The following issues can sometimes occur when pouring concrete slabs. While some aspects of working with concrete slabs have changed over the years, many issues have not. Here are three common problems that come with pouring concrete slabs, and their possible solutions.

1) Excessive Bleeding

Bleeding occurs when the heavy ingredients in concrete (aggregate and sand) settle and push the extra water to the top of the slab. Concrete that bleeds for too long or too fast can cause problems like sand streaks in walls; weak horizontal construction joints; rock jams in pump lines; etc. Finishing a concrete slab before bleed water has evaporated can cause cracking, dusting, scaling and low-wear resistance.

Excessive bleeding can be avoided by not adding too much water to the concrete; placing concrete at the lowest possible slump (if you need a higher slump to speed placement, consider using a superplasticizer); using a more finely ground cement; adding more cement to the mix; blending in a fine blow sand or fly ash.

2) Curling

Curling happens when a slab rises up at corners and edges – or sometimes at a mid-panel crack. It happens when the top section of a concrete slab dries or cools faster than the bottom section. Curled concrete slabs can be fixed, but it is expensive. 

Grinding can level out the edges, and grout can be used to restore support to the slab. The best way to avoid curling is to control it before it happens. There are a number of material choices, construction practices and design decisions that will help prevent curling from happening in the first place.

3) Thin slab

All concrete slabs have varied thicknesses – some parts of the slab are thicker than others. When it comes to thin slabs, the thinnest sections may be too thin to retain their strength and may be prone to crumbling. In such cases, the contractor needs to decide how thin is too thin.

They must decide whether to make the slabs thicker for the sake of giving additional strength and durability to the concrete slab. Contractors should also pour thin slabs very carefully and ensure that the depth of concrete is even throughout the slab.

These are three of the most common problems that can arise when working with concrete slabs. They are easy to fix; taking care while pouring the concrete and being precise with measurements is the best way to avoid these problems in the first place.

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LafargeHolcim is a leading building materials and solutions company that has been operating in international markets for decades. We produce cement and aggregates for construction projects, ranging from small affordable housing developments to large-scale infrastructure projects such as high-rise buildings, dams and bridges. 

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LafargeHolcim Tanzania has been supplying the country and neighbouring countries with our world-class Tembo cement brand for over 30 years. Our head office and fully-integrated plant are located in Mbeya, Southwest Tanzania.

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At LafargeHolcim Tanzania, we believe customers come first. We listen to your specific requirements to supply and develop the best solutions for your needs. As the new leader in building materials, you can also rely on our cutting-edge research and development capabilities that have resulted in the finest materials for your construction projects, whether large or small.

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Follow us on Facebook, Twitter, LinkedIn and Pinterest for the best tips on construction, handy projects and the latest industry news. See our Instagram channel for more insights into our products.

What is exposed aggregate concrete

What is exposed aggregate concrete

Exposed aggregate concrete serves two purposes; it is both decorative and functional. It is a term used to describe a concrete surface, such as a floor, path, pavement or parking lot, that has exposed gravel. This method is used to create flat surfaces that not only look good, but they also provide extra grip in wet conditions.

Exposed aggregate concrete is made by removing the top layer of cement and fine aggregate from freshly-poured concrete. This leaves the large aggregate particles (crushed stone or gravel) exposed and sticking out the top of the surface slightly. It is a durable and skid-resistant surface that is often used to make driveways, paths, pool decks and floors safer.

Methods for creating exposed aggregate surfaces

There are many ways to create these types of surfaces, but contractors generally use four methods.

  1. Standard – The standard way to create exposed aggregate surfaces is by mixing a normal batch of concrete; cement, sand, water and crushed stone. The concrete is then poured and left for an hour or so to harden slightly. A broom is then used to vigorously sweep the surface, removing the fine concrete particles and leaving behind the exposed gravel and stone particles.
  2. Seeded – This method involves placing the gravel or crushed stone, by hand, into the surface of freshly-poured concrete. It is similar to planting seeds in the ground, except that just the surface of the stone is left sticking out the top of the concrete.
  3. Topping – Also known as a concrete overlay, this method is used to upgrade and existing concrete surface into a slip-resistant one. A fresh concrete batch is mixed and poured thinly on top of an old floor or path. The thin layer of concrete leaves the thicker stones exposed along the surface.
  4. Polished – This method is often used inside homes and is more decorative than functional. Instead of leaving the aggregate exposed with a textured surface, a grinder or sander is used to flatten the surface and make it level. Several layers of clear coat sealer are applied to create a shiny, polished surface.

As a general rule, the exposed gravel should always be at least two-thirds embedded in the concrete. This will prevent the stones from lifting and being removed from the surface, which would leave holes and large pits in the concrete. These pits can then collect dirt, water and soil, which can affect the durability of the floor.

Benefits of using exposed aggregate concrete surfaces

There are a number of reasons why people choose to use exposed aggregate surfaces in their homes and gardens. Firstly, it can look really nice if you use stones of various shapes and colours. Some homeowners like to match the colour of the exposed stones with the rest of their furniture. This makes it a customisable and aesthetic feature of a house.

Exposed aggregate surfaces are also very durable. They have the structural integrity of concrete and can last for 40 years or more. These surfaces are also highly-resistant to wear and tear and heavy traffic use. They can also handle exposure to the elements really well – sun, rain and hail have little impact on the strength and durability of these surfaces.

As with concrete floors, exposed aggregate surfaces require little maintenance besides sweeping and hosing with water. This makes them a cost-effective solution for floors and driveways. They don’t cost too much to install and they are certainly not expensive to maintain.

The main benefit, however, is the skid-resistance and added grip of the exposed aggregates. These surfaces are useful in wet conditions or around swimming pools. They ensure the safety of users, preventing slips and falls which could lead to serious injuries. Exposed aggregate concrete surfaces are safer than many other flooring materials, especially when wet.

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LafargeHolcim is a leading building materials and solutions company that has been operating in international markets for decades. We produce cement and aggregates for construction projects, ranging from small affordable housing developments to large-scale infrastructure projects such as high-rise buildings, dams and bridges. 

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LafargeHolcim Tanzania has been supplying the country and neighbouring countries with our world-class Tembo cement brand for over 30 years. Our head office and fully-integrated plant are located in Mbeya, Southwest Tanzania.

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At LafargeHolcim Tanzania, we believe customers come first. We listen to your specific requirements to supply and develop the best solutions for your needs. As the new leader in building materials, you can also rely on our cutting-edge research and development capabilities that have resulted in the finest materials for your construction projects, whether large or small.

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Follow us on Facebook, Twitter, LinkedIn and Pinterest for the best tips on construction, handy projects and the latest industry news. See our Instagram channel for more insights into our products.

Why brick and cement are sustainable building options

Why brick and cement are sustainable building options

Brick and cement are some of the most common building materials used in the construction industry. They are both sustainable materials that are made from natural elements. Cement is largely made up of limestone and other minerals, while bricks are made from clay and soil. LafargeHolcim Tanzania manufactures Tembo cement at its facility in Mbeya. Many of the bricks in Tanzania are made at small-scale plants.

Clay is an abundant natural element, but some bricks can be made with shale, soil (for soil-stabilised concrete blocks) or recycled brick dust. Similarly, post-industrial waste products, such as fly ash, silica fume and slag, can be used to make cement. Brick and cement can be manufactured from a variety of materials but their long-term strength and durability make them sustainable construction materials.

Brick manufacturing process

Brick-making facilities are usually set up close to the source of the raw materials. The process of making bricks is quite simple and it produces very little waste materials. Wet clay is packed into brick moulds and compressed. The wet bricks are removed from the mould and placed in a large oven which bakes the clay into the hard brick. 

Unfired clay is easily recycled into new bricks by simply wetting it and mixing it in with the raw materials. Fired bricks that are cracked or damaged can be crushed and recycled back into the production process, or used as a landscaping and rubble material. The brick ovens are normally fuelled by natural gas, although coal and wood are sometimes used in small-scale operations.

Bricks can be manufactured anywhere in the world, so they are usually sold to local markets within the same region as where they are manufactured. This means that less fuel is needed for transport and fewer carbon emissions are released into the air. The recyclability and durability of bricks make them sustainable building materials.

Brick and cement construction is eco-friendly

Once the bricks are sold to contractors, there is only a small amount of waste that is generated by brick construction. Only partial bricks, cracked bricks and unused cement mortar are the waste products from brick construction – all of which can be recycled into rubble for other building projects.

Brick masonry is a good insulator, which means that cool air can be kept inside on hot days and warm air can be kept inside on cold nights. The insulating properties of clay bricks and cement help to reduce the need for air conditioning or heating units, which use electricity and can be a source of air pollutants.

When a building has reached the end of its useful life, the bricks can be carefully deconstructed and reused in other building projects. Damaged bricks and mortar can be used for rubble or landscaping purposes. Brick masonry requires very little maintenance and the buildings can last for centuries. This makes brick and cement construction a sustainable building option for contractors.

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LafargeHolcim is a leading building materials and solutions company that has been operating in international markets for decades. We produce cement and aggregates for construction projects, ranging from small affordable housing developments to large-scale infrastructure projects such as high-rise buildings, dams and bridges. 

___

LafargeHolcim Tanzania has been supplying the country and neighbouring countries with our world-class Tembo cement brand for over 30 years. Our head office and fully-integrated plant are located in Mbeya, Southwest Tanzania.

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At LafargeHolcim Tanzania, we believe customers come first. We listen to your specific requirements to supply and develop the best solutions for your needs. As the new leader in building materials, you can also rely on our cutting-edge research and development capabilities that have resulted in the finest materials for your construction projects, whether large or small.

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Follow us on Facebook, Twitter, LinkedIn and Pinterest for the best tips on construction, handy projects and the latest industry news. See our Instagram channel for more insights into our products.

New energy-saving technologies for buildings

New energy-saving technologies for buildings

Sustainability is becoming a more popular way of doing things. Reducing waste, conserving electricity and having a lower impact on the environment are necessary changes that people are starting to make. The construction industry is no exception. Sustainability has driven the advancement of new energy-saving technologies in buildings.

Some of these technologies include LED lighting, modern insulation, reflective roofing materials, heating and cooling systems, as well as waste-to-energy generation. These are new ways of building homes and office spaces that reduce the building’s impact on the environment. Here are some of the new energy-saving technologies being used by contractors currently:

Connected and Smart Buildings

Some homes and office spaces have an integrated wireless system that automatically controls various aspects of the building. Sensors can detect and make a change to air conditioning and heating systems, the lighting circuits, geysers and a variety of other elements that require energy. These automated systems can reduce the energy consumption of a building by switching units off when they are not needed.

Advancements in window technology

When one thinks of technology, they probably do not think about glass windows. New adhesive coatings can be applied to windows that change colour in bright sunlight – like glasses that dim themselves when the wearer steps into the sun. This technology is being used on modern high-rise buildings already.

These coatings reduce glare inside the building, cut down external light and heat reflections from the windows and lower the internal temperature of the building. This helps to save energy on cooling systems during the day. At night, the colour coating returns to its transparent state, allowing the maximum amount of light into the building. 

Energy-saving lighting circuits

Most modern buildings are being fitted with energy-efficient LED lights, as opposed to fluorescent tubes or traditional light bulbs. LED lights use just 10% of the energy needed to power an incandescent bulb. This means that buildings with LED lighting circuits are 90% more efficient – and homeowners can change their bulbs themselves.

Another lighting system currently being used requires no energy during the day. Light pipe systems use a light collector to ‘pipe’ the light falling on the roof to the interior spaces of the building. The sunlight travels through these reflective pipes and is dispersed inside the building, similar to how a skylight works. These systems use zero electricity during the day, but conventional lighting will be needed at night.

Eco-friendly insulation

A new type of foam insulation is being installed on modern buildings. This insulation is made from environmentally-friendly materials and advanced composites. The insulation helps to regulate the internal temperature of a building. It keeps the building cool on hot days and traps the heat inside on cold days. Insulation is a vital part of building in colder climates, but Tanzanian contractors also use it to keep homes cool in our hot climate.

Electricity and heat generation

New technologies have been developed that enable the cogeneration of electricity and heat from the same unit. The electricity powers all the lights and wall sockets while the heat from the generator is captured and used to heat geysers and wall-mounted heating systems. This cogeneration minimises energy wastage.

Another electricity generation technique currently being used in Africa is waste-to-energy. This is a system whereby household and organic waste is burned in a furnace. The heat is then used to power an electricity generator, effectively turning waste into power. These systems are being installed at shopping malls, hotels and office spaces where there is enough waste produced to run the system.

Reflective roofing materials

Like the window coatings that help to regulate internal temperatures of buildings, new reflective paint is being used on the roofs of high-rise buildings. Contractors spray this coating on the roof to reflect the sun’s light and heat. This lowers the heat absorption of the roof and cools down the interior of the building.

These technologies are just a few of the modern advancements being used in construction today. They are making our cities and suburbs more efficient, saving money for owners and lowering the environmental impact of human activity. Sustainable technologies such as these are the future.

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LafargeHolcim is a leading building materials and solutions company that has been operating in international markets for decades. We produce cement and aggregates for construction projects, ranging from small affordable housing developments to large-scale infrastructure projects such as high-rise buildings, dams and bridges. 

___

LafargeHolcim Tanzania has been supplying the country and neighbouring countries with our world-class Tembo cement brand for over 30 years. Our head office and fully-integrated plant are located in Mbeya, Southwest Tanzania.

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At LafargeHolcim Tanzania, we believe customers come first. We listen to your specific requirements to supply and develop the best solutions for your needs. As the new leader in building materials, you can also rely on our cutting-edge research and development capabilities that have resulted in the finest materials for your construction projects, whether large or small.

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Follow us on Facebook, Twitter, LinkedIn and Pinterest for the best tips on construction, handy projects and the latest industry news. See our Instagram channel for more insights into our products.

Eight frequently asked questions about concrete

Eight frequently asked questions about concrete

Concrete is one of the most popular building materials across the globe. It is used in most construction projects, along with other cement-based materials such as plaster and mortar. Here are eight frequently asked questions about concrete that can shed some light on the material for people wanting to know more or become contractors themselves.

1. Are cement and concrete the same thing?

No, cement and concrete are not the same. Cement is a main ingredient of concrete and comes in a dry powder form. Together with water and aggregates (usually rock, gravel or sand) cement is used to make concrete. As a part of concrete, cement is the binding agent that holds the mixture together.

2. How long does it take for concrete to become hard, or set?

It takes 24 – 48 hours for concrete to set. Concrete will achieve 70% of its full strength seven days after it was laid. It will reach its full strength (100%) 28 days after it was laid. Concrete will become increasingly stronger over time because the cement forms bonds with surrounding moisture particles.

3. What are the ingredients of concrete?

Concrete is made up of cement, water and aggregates (sand or crushed stone). Cement is a dry powder made by LafargeHolcim Tanzania. Cement is the binding agent that holds the mixture together. Water is needed to form a chemical reaction with the cement. The water/cement ratio will determine the strength of the concrete. Aggregates can be either gravel, rocks or sand. It gives the concrete its structural volume and strength.

4. Can I lay concrete in wet weather?

Yes, it is possible to lay concrete when it is raining, but proper preparation is necessary. Precipitation (rain, snow, sleet, or hail that falls to or condenses on the ground) can lead to concrete becoming soft, which could reduce its strength. Constructing a protective enclosure of wood and plastic sheeting around the area where the concrete will be laid can prevent this type of damage.

5. What is concrete’s durability?

Concrete is extremely durable. It is a high-strength product and its traits make it suitable to be used in a number of ways, from industrial to domestic. Concrete has a lifespan of 40 years or more and it also hardens with age.

6. Is concrete an eco-friendly material?

Concrete is sourced from natural rock and often extracted on location, which means that minimal resources are needed to transport it to the required work site. At the end of its lifespan, concrete can be crushed and recycled. So, while it is not traditionally classed as an environmentally-friendly material, there are eco-friendly elements to concrete’s creation.

7. Will my floors be cold if they are made from concrete?

While concrete floors can be cold, they are not much colder than other often-used materials like natural stone flooring or ceramic tiles. During hot summer months, cooler floors can be a bonus and contribute to lower air conditioning costs – especially in a country like Tanzania where hot weather can be experienced all year-round.

8. How do I calculate the amount of concrete my project requires?

It is simple to calculate the amount of concrete needed for your project. Here’s an article that outlines the process of estimating the volume of concrete needed for any project, based on its area and volume.  

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LafargeHolcim is a leading building materials and solutions company that has been operating in international markets for decades. We produce cement and aggregates for construction projects, ranging from small affordable housing developments to large-scale infrastructure projects such as high-rise buildings, dams and bridges. 

___

LafargeHolcim Tanzania has been supplying the country and neighbouring countries with our world-class Tembo cement brand for over 30 years. Our head office and fully-integrated plant are located in Mbeya, Southwest Tanzania.

___

At LafargeHolcim Tanzania, we believe customers come first. We listen to your specific requirements to supply and develop the best solutions for your needs. As the new leader in building materials, you can also rely on our cutting-edge research and development capabilities that have resulted in the finest materials for your construction projects, whether large or small.

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Follow us on Facebook, Twitter, LinkedIn and Pinterest for the best tips on construction, handy projects and the latest industry news. See our Instagram channel for more insights into our products.

How to estimate the number of bricks needed for a project

How to estimate the quantity of bricks needed for a project

Before any brickwork construction can begin, the contractor first needs to order the building materials (bricks, cement, sand, etc.) and have them delivered to the site. To do this, an accurate estimation will need to be made of the volumes of building materials that will be required. The contractor has to consider how many bricks are needed for the total area of the building.

When making estimations, contractors often work out the number of bricks needed to fill a space of one cubic metre. Clay bricks tend to have a standard size (roughly 222mm long by 106mm wide by 73mm high). For one cubic metre of standard-sized brick masonry, a contractor will need 494 bricks. This equates to about 60 bricks per square metre of single-brick wall or 120 bricks per square metre of double-brick wall.

The contractor needs to calculate the volume (for a double-brick wall) or area (for a single-brick wall) by multiplying the width, length and height. This can be done according to the architect’s drawings. Once the contractor knows the area of the wall, they can use the above guidelines to place an order. They can multiply the area by 60 (for a single-brick wall) or by 120 (for a double brick wall).

Once the number of bricks has been calculated according to the size of the wall, contractors should always add a 10% allowance on top of that number. This takes into account any additional bricks needed for verges, pillars or to replace broken ones. It is always better to have a few extra bricks than not enough.

The contractor will also need to estimate the quantity of mortar needed for one cubic metre of masonry. On average, buildings will require between 0.25 and 0.3 cubic metres of mortar per cubic metre of brick. This means that between 25% and 30% of brickwork consists of mortar (or sand and cement).

Contractors can use these estimations as a guideline to know how many bricks will need to be ordered and what volume of sand and cement to have delivered. Running out of building materials will cause time delays and cost the contractor money. However, builders do not want to have hundreds of bricks leftover at the end of a project either.

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LafargeHolcim is a leading building materials and solutions company that has been operating in international markets for decades. We produce cement and aggregates for construction projects, ranging from small affordable housing developments to large-scale infrastructure projects such as high-rise buildings, dams and bridges. 

___

LafargeHolcim Tanzania has been supplying the country and neighbouring countries with our world-class Tembo cement brand for over 30 years. Our head office and fully-integrated plant are located in Mbeya, Southwest Tanzania.

___

At LafargeHolcim Tanzania, we believe customers come first. We listen to your specific requirements to supply and develop the best solutions for your needs. As the new leader in building materials, you can also rely on our cutting-edge research and development capabilities that have resulted in the finest materials for your construction projects, whether large or small.

___

Follow us on Facebook, Twitter, LinkedIn and Pinterest for the best tips on construction, handy projects and the latest industry news. See our Instagram channel for more insights into our products.

How to manage building materials at a construction site

How to manage building materials at a construction site

The management of construction materials at a construction site involves a number of things. Coordinating the planning, sourcing, buying, moving, storing and controlling of building materials, will help a project to run smoothly and within budget. 

Management needs to supervise, coordinate and carry out all the work related to the flow of materials to, through and out of a construction site in a controlled way. Managing materials on a construction project is a complicated operation. It has an impact on various departments within the business. Here are some of the main functions of construction materials management:

Planning and controlling building materials

Materials planning and control starts with the production and sales forecast plans. This includes creating estimates for the individual requirements of parts, forecasting the levels of inventories, preparing materials budgets, scheduling the orders and monitoring the performance of sales and production.

Purchasing the materials

Purchasing construction materials include the selection of suppliers, the finalising of purchase terms, order placement, ensuring good supplier relations, supplier payments and the rating and evaluating of suppliers.

Inventory control and storage

Storage includes the physical control of materials; keeping stored items safe, preventing or minimising materials from becoming outdated and damaged, maintenance of stores records, proper storage location as well as stocking. Storage also requires that physical stocks are counted and documented in books with figures.

Inventory control relates to things like setting inventory levels, fixing economic ordering quantities, ABC analyses, the setting of safety stock levels, the analysis of lead times, as well as reporting.

The importance of managing building materials 

A construction materials manager carries a lot of responsibility. For many construction companies, materials form the largest expenses on a construction project – nearly 60% of total costs. The materials manager can make a significant contribution to keeping the cost of materials down. 

This will help to improve the project’s profitability, as well as the rate of return on investment. As market pressure increases, companies have to cut down on costs. Here, materials management has a big role to play.

Materials make up such a big percentage of the total cost of a project, so cutting down on materials expenses can help a lot to reduce the project’s total cost. A small saving percentage in the cost of materials can result in a large percentage increase in the project’s profitability.

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LafargeHolcim is a leading building materials and solutions company that has been operating in international markets for decades. We produce cement and aggregates for construction projects, ranging from small affordable housing developments to large-scale infrastructure projects such as high-rise buildings, dams and bridges. 

___

LafargeHolcim Tanzania has been supplying the country and neighbouring countries with our world-class Tembo cement brand for over 30 years. Our head office and fully-integrated plant are located in Mbeya, Southwest Tanzania.

___

At LafargeHolcim Tanzania, we believe customers come first. We listen to your specific requirements to supply and develop the best solutions for your needs. As the new leader in building materials, you can also rely on our cutting-edge research and development capabilities that have resulted in the finest materials for your construction projects, whether large or small.

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Follow us on Facebook, Twitter, LinkedIn and Pinterest for the best tips on construction, handy projects and the latest industry news. See our Instagram channel for more insights into our products.

Different ways to use recycled concrete at home

Different ways to use recycled concrete at home

In the construction industry, large quantities of waste material are often generated through the course of the project. Did you know that a lot of this material could be repurposed or recycled? It is ideal for projects around the home and the garden and it also prevents waste from ending up in landfills.

Concrete is a material that is ideal for recycling – it is 100% recyclable. At construction sites, recycled concrete is often available for free – some contractors will even deliver the concrete to your house. Concrete is inexpensive and durable and can be repurposed in various ways. Here are some examples of uses for recycled concrete:

Raising garden beds above ground

There are many benefits to raising a garden bed a few inches above the surrounding soil. It improves the soil drainage and also helps to warm soil so that seeds germinate quicker in spring. Raising garden beds 30 to 50 centimetres high will make it easier for people with limited mobility (like older people or physically challenged individuals) to do gardening.

Walkways and garden paths

Build new paths and walkways around your home and yard by using concrete paving stones or pieces of rubble. Try to get rubble from a single demolition site for your project. This will make it easier to find pieces of the same thickness, which makes it easier to handle and work with. Keep in mind that walkways built from separate pieces of recycled concrete (from various demolition sites) will have many gaps for rainwater to soak into the ground.

Aggregate and drainage

Sometimes a project requires small pieces of aggregate – materials used for mixing with cement, bitumen, lime, gypsum or other adhesive to form concrete. Many municipalities have companies that recycle old concrete into small pieces of aggregate. This aggregate is inexpensive and very useful for poured-concrete projects. 

These small particles of aggregate also make good drainage materials. You can use it as an alternative to gravel in wet areas. For example, you can dig a trench through an area where water collects. Then fill this area with concrete aggregate that surrounds a perforated PVC drainage pipe. Cover the pipe with more concrete and place the soil back.

Garden terraces and retaining walls

You can use the same technique on sloping hills to build retaining walls to prevent erosion. You can also create a terraced garden with planting sites this way. In each area where you want to build a piece of wall, dig and level a space as wide and deep as you wish to plant.

To add stability, place a layer of broken-up concrete or gravel at the base. Then stack the layers of recycled concrete. Add soil between the layers to fill in any uneven spots. When you are finished, add soil to the retaining area where you wish to plant.

Concrete is a sustainable building material. It is completely recyclable and can be used in many ways in home construction projects. Consider these uses for old concrete in your home and take advantage of a cost-effective building material.

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LafargeHolcim is a leading building materials and solutions company that has been operating in international markets for decades. We produce cement and aggregates for construction projects, ranging from small affordable housing developments to large-scale infrastructure projects such as high-rise buildings, dams and bridges. 

___

LafargeHolcim Tanzania has been supplying the country and neighbouring countries with our world-class Tembo cement brand for over 30 years. Our head office and fully-integrated plant are located in Mbeya, Southwest Tanzania.

___

At LafargeHolcim Tanzania, we believe customers come first. We listen to your specific requirements to supply and develop the best solutions for your needs. As the new leader in building materials, you can also rely on our cutting-edge research and development capabilities that have resulted in the finest materials for your construction projects, whether large or small.

___

Follow us on Facebook, Twitter, LinkedIn and Pinterest for the best tips on construction, handy projects and the latest industry news. See our Instagram channel for more insights into our products.

LafargeHolcim Group sees 2.2% growth in 2019

LafargeHolcim Group sees 2.2% growth in 2019

The global LafargeHolcim Group has had a strong start to 2019, seeing a 2.2% growth in the first quarter (Q1) net sales of cement as compared to Q1 2018. The group managed to sell a combined total of just under 4.1-billion Swiss Francs (~9.5-trillion TZS) of cement in the first three months of 2019.

“We had a very strong start of the year and I am especially pleased to see our strong sales growth and an over-proportional increase in profitability. Our momentum is very positive and the Q1 2019 is the third consecutive quarter with Recurring EBITDA (earnings before interest, tax, depreciation and amortization) growing faster than Net Sales,” says the chief executive officer of the LafargeHolcim Group, Jan Jenisch.

“We have delivered on the promised strengthening of our balance sheet and we are on track to accelerate the execution of our Strategy 2022 – ‘Building for Growth’. Our momentum in the past three quarters, a solid global market demand and the ambitions of our teams give us great confidence for reaching our targets for the full year,” he explains.

Strong momentum for LafargeHolcim Group in 2019

LafargeHolcim branches in all regions of the world are showing positive signs of growth and consistency. The markets in Africa have started to stabilise overall and the turnaround plans in several of these countries are starting to deliver visible results. One of the challenges that branches in Africa face is the fluctuation of supply and demand for cement, which impacts the prices.

Branches in Europe have delivered the strongest results so far in 2019, followed by North America and South America. The Asia Pacific region also continues its strong momentum due to the high demand for cement in countries such as India, the Philippines and Australia. All-in-all, 2019 has been successful for LafargeHolcim so far and this upward trend is expected to continue for the next three quarters.

Outlook for 2019

The positive momentum seen in Q1 2019 is expected to continue for the remainder of the year. The LafargeHolcim Group expects challenging but stabilised market conditions in Africa and the Middle East. They also expect to see continued growth in North America, Asia Pacific and Europe, as well as softer but stabilised demand for cement products in South America.

Based on these trends and the successful execution of Strategy 2022, the targets for 2019 appear to be attainable. The group is expecting a Net Sales growth of three to five percent with a Recurring EBITDA growth of four to five percent. LafargeHolcim expects to continue its cash conversions through money-saving initiatives and more profitable margins. 

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LafargeHolcim is a leading building materials and solutions company that has been operating in international markets for decades. We produce cement and aggregates for construction projects, ranging from small affordable housing developments to large-scale infrastructure projects such as high-rise buildings, dams and bridges. 

___

LafargeHolcim Tanzania has been supplying the country and neighbouring countries with our world-class Tembo cement brand for over 30 years. Our head office and fully-integrated plant are located in Mbeya, Southwest Tanzania.

___

At LafargeHolcim Tanzania, we believe customers come first. We listen to your specific requirements to supply and develop the best solutions for your needs. As the new leader in building materials, you can also rely on our cutting-edge research and development capabilities that have resulted in the finest materials for your construction projects, whether large or small.

___

Follow us on Facebook, Twitter, LinkedIn and Pinterest for the best tips on construction, handy projects and the latest industry news. See our Instagram channel for more insights into our products.

10 benefits of concrete over other building materials

Contractor using building materials

When it comes to building materials, contractors always consider the costs, strength, sustainability, durability and safety of the various materials. Concrete is a fantastic all-rounder, which is why it is one of the most common building materials.

Steel may be strong, but it is expensive and prone to rust. Wood may be very cheap, but it is not very durable. Concrete is the perfect balance between all these factors. It is strong, affordable, safe and durable. It does not rust or rot and it can be made into any shape or size.

Concrete has many advantages over other building materials, which is why you should consider using it for your next building project. Here are 10 benefits of using concrete over other building materials:

1. Low maintenance

Concrete is a low-maintenance material. Once poured and set, it requires little effort to keep it in top shape. It does not need to be painted with protective coats or treated with chemicals. Concrete holds its shape and its integrity for decades without any necessary intervention. This cuts down on repair and maintenance costs in the long run.

2. Highly durable

Concrete is designed to last for many years – even centuries. Concrete has a lifespan that is two to three times longer than other building materials. It can withstand wear and tear better than wood or steel. Concrete’s durability means that it is a once-off investment when building – it will not need to be replaced again.

3. Can be made into any shape and size

Because concrete is essentially a liquid before it sets, it can be moulded into any shape or size. Architects love working with concrete as it allows them greater flexibility with their designs. It is perfectly suited to large-scale projects or small-scale home builds. Concrete can even be stamped and moulded to resemble wood and bricks.

4. Not affected by rust or rot

Unlike wood and steel, concrete does not rot or rust. Moisture in the air and heavy rains can cause wood to weaken as it slowly rots. Similarly, excess moisture can cause steel to rust, especially in coastal areas. Concrete is unaffected by these problems, which is why it is highly durable.

5. Energy-efficient

Concrete is a good insulator, which means that it can keep buildings cool in the summer and warm in the winter. This means that concrete is more energy efficient as it reduces the need for heaters and air-conditioning units. It can cut electricity bills and save the building owners money. Concrete is energy-efficient in another way; it takes less energy to manufacture concrete than it does to produce steel (three times less, in fact).

6. Fireproof

Due to its low conductivity levels, concrete is actually fireproof. This has many obvious advantages, but most importantly is the safety of building occupants. Wood is highly flammable and steel can melt in intense fires, which makes them inferior building materials to concrete. When a building burns, often the walls, floors and concrete foundations are the only things left standing. This makes repairs cheaper and quicker.

7. Not affected by wind or water

Concrete is more resistant to high winds and flooding than wood, for example. This means that in extreme weather conditions, such as storms and cyclones, concrete is a safer building material than steel or wood. Concrete is highly resistant to other effects of wind and flooding, such as rust and rot.

8. Minimal waste

Concrete is a building material that can be used with minimal waste. It can be produced in exact amounts so that no excess goes to waste. It is also reusable and recyclable. Once the concrete has served its purpose, it can be broken down into rubble and reused for other building projects.

9. Reflectivity

Unlike metal and glass, concrete does not reflect light. This can have safety advantages for road users and pilots. In addition, its neutral grey colour means that it does not absorb solar radiation like darker materials, such as steel and asphalt. This means that concrete has the right balance between reflectivity and absorption of light and heat.

10. Concrete is quieter

Concrete has been proven to reduce noise. It makes buildings quieter for residents. Steel, glass and wood can transfer noise from the outside world into the interior of a building. Concrete has a higher soundproofing capability than other building materials.

These are the ten main advantages of concrete over other building materials. Concrete is a popular choice for architects and contractors for the reasons stated above. LafargeHolcim Tanzania produces a variety of cement products that have different applications for concrete.

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LafargeHolcim is a leading building materials and solutions company that has been operating in international markets for decades. We produce cement and aggregates for construction projects, ranging from small affordable housing developments to large-scale infrastructure projects such as high-rise buildings, dams and bridges. 

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LafargeHolcim Tanzania has been supplying the country and neighbouring countries with our world-class Tembo cement brand for over 30 years. Our head office and fully-integrated plant are located in Mbeya, Southwest Tanzania.

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At LafargeHolcim Tanzania, we believe customers come first. We listen to your specific requirements to supply and develop the best solutions for your needs. As the new leader in building materials, you can also rely on our cutting-edge research and development capabilities that have resulted in the finest materials for your construction projects, whether large or small.

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