TANZANIA - #likelafargeholcim

For building tips and information, follow us on

The cement manufacturing process

Infographic of cement manufacturing process

How is cement made?

Cement is one of the core ingredients in concrete. The cement powder forms a paste when mixed with water that binds to sand and crushed stone to form strong concrete. Cement is made from limestone and a few other minerals that are chemically-treated and roasted in a furnace.

The limestone is mixed with other minerals, such as clay, fly ash, silica sand and iron ore. They are heated to form a hard rock-like substance, which is then ground into a fine grey powder – cement as we know it.

Steps to making cement powder

Step 1: Core ingredients are delivered to the cement factory. The limestone is crushed by a series of rolling crushers and hammers and is then sent via conveyor to the next stage.

Step 2: The crushed limestone is mixed with sand and clay in large vats. The resulting mixture is then fed into a kiln.

Step 3: The cement kiln heats the mixture to 1500℃ in large cylindrical rotary drums lined with firebrick. These huge kilns are angled downwards so the ingredients move from one side to the other while being roasted. Gases are released from the mixture, leaving behind a new substance called clinker – small grey balls about the same size as marbles.

Step 4: The red-hot clinker is discharged from the lower end of the kiln and then fed into a clinker cooler. The heated air from the cooler is returned to the kiln, saving fuel and energy in the process.

Step 5: The cooled clinker is mixed with gypsum and then sent to a grinding mill where it is ground into a fine powder. Cement is so fine that one kilogram of powder contains about 300 billion grains.

Step 6: The cement powder is then sent to storage tanks where it is packaged into 50kg bags or delivered to building contractors in bulk tankers.

___

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 the Mbeya Region at Songwe in 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.

Register now for the Architecture Best Practice Sharing Sessions

LafargeHolcim Tanzania is adding value to the local building industry LafargeHolcim Tanzania is hosting a series of FREE knowledge-sharing talks, called Best Practice Sharing Sessions. These seminars will take place at the company’s Building Materials Centre in Dar es Salaam, starting in May 2019. Book your seat here. Local architects, contractors and industry stakeholders are …

What to expect when attending the Best Practice Sharing Sessions

This LafargeHolcim Tanzania initiative will add value to the local building industry Pieter Mathews, a well-known South African architect, will kick off LafargeHolcim Tanzania’s Best Practice Sharing Sessions. These FREE knowledge-sharing sessions will take place at the Building Materials Centre in Dar es Salaam (Masaki) on 6, 7 and 8 May 2019. Book your seat …

Pieter Mathews has numerous publications

The award-winning architect has been published multiple times Pieter Mathews, a renowned architect from South Africa, will be hosting the first of LafargeHolcim Tanzania’s architecture Best Practice Sharing Sessions in May 2019. These FREE knowledge-sharing sessions will take place at the Building Materials Centre in Dar es Salaam (Masaki). Book your seat here. As an …

LafargeHolcim Tanzania hosts Pieter Mathews

Renowned South African architect adds value to Tanzanian building market LafargeHolcim Tanzania is organising a series of free knowledge-sharing presentations, called Best Practice Sharing Sessions, for locals in the construction industry. The first guest to give insight into his career and his industry is award-winning South African architect, Pieter Mathews. Book your seat here. Mathews …

The LafargeHolcim Tanzania Building Materials Centre to host knowledge-sharing sessions

The Best Practice Sharing Sessions get underway from May 2019 in Dar es Salaam (Masaki) LafargeHolcim Tanzania is launching a series of FREE knowledge-sharing presentations that will kick off in May 2019. The purpose of the Best Practice Sharing Sessions is to add value to the building industry through key insight from expert speakers and …

Apply for your seat now at the first Best Practice Sharing Sessions

These knowledge-sharing sessions will take place at LafargeHolcim Tanzania’s Building Materials Centre The first of LafargeHolcim Tanzania’s Best Practice Sharing Sessions will take place in early May 2019. These FREE knowledge-sharing presentations will take place at the company’s Building Materials Centre in Dar es Salaam. Book your seat here. Award-winning South African architect, Pieter Mathews, …

Pieter Mathews to host first LafargeHolcim Best Practice Sharing Session

The sessions take place at the Building Materials Centre in Dar es Salaam (Masaki), Tanzania. LafargeHolcim Tanzania is hosting a series of Best Practice Sharing Sessions for key players in the building industry, free of charge. These sessions will take place at the company’s Building Materials Centre in Dar es Salaam, starting in May 2019 …

LafargeHolcim Tanzania launches architecture Best Practice Sharing Sessions

The Building Materials Centre will add value to the local market through a series of discussions LafargeHolcim Tanzania, a member of the global LafargeHolcim Group, has been supplying  Tanzania with world-class cement and building materials solutions for over 30 years. The company is aiming to add further value to the local building industry by hosting …

How to build concrete countertops for your home

Concrete countertops are a popular feature of modern homes. They are affordable, durable and can be made to the dimensions of any kitchen or space in the house. They are very strong and can last decades, so concrete countertops are a good investment – and easy to make. Concrete countertops require little maintenance and it …