There are many myths and beliefs about concrete in the construction industry. Some contractors may believe these myths and, as a result, shy away from using concrete in a project, in favour of other less adequate building materials. Concrete is a strong, resilient and cost-effective building material, so take note of the following three myths.
1. Adding lots of water to the concrete mix will be better
Many contractors believe that the more water you add to the concrete mix, the better the results will be. In truth, the correct water to cement ratio is absolutely vital to the final quality and strength of the concrete. By adding too much water, you actually weaken the bonds between the materials in the concrete mix. This can lead to brittle concrete that is prone to cracking. It also makes the concrete slump and runny, which means that it can leak out of formwork easily.
2. All concrete will crack
This is simply untrue! If the concrete is mixed, poured and cured correctly, it should never crack. Any cracks in concrete are the result of improper building practices or shortcuts being taken. If a contractor does not use the right ratios of cement to water to aggregates, then the final concrete structure can be compromised. Not allowing the poured concrete to cure properly afterward can also result in a weaker structure. Concrete will not crack if due care is taken throughout the entire process.
3. Concrete does not require maintenance
Many homeowners believe that concrete requires no maintenance. While concrete is incredibly durable, it does need to be looked after. Concrete structures and surfaces should be cleaned regularly, inspected once in a while and repaired as soon as any defects present themselves. Homeowners need to look after their concrete surfaces as they are an asset and can impact the value of the home.
These are the three most common myths about concrete that can mislead contractors and homeowners. Concrete is a versatile and useful building material, especially when it is used properly and looked after in the decades following. Contact us for more information about our cement products and concrete building tips.
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.