Concrete Construction Process
Estimation: We usually order large volume of concrete from ready-mix supplier. They just need to know the required concrete volume, minimum compressive strength of concrete and maximum aggregate size. We just need to estimate the total volume of concrete which we can do from drawing.
For small volume of concrete, we normally depend upon mixture machine. For this, we need to measure concrete ingredients separately.
Many things involve in this stage. Different structure needs different things. Such as, for footing concreting of a building, we should carefully make layout of building. Then, we have to excavate or fill earth at desired level. Then we have to compact the soil. And then we can proceed to pour concrete.
But, for a floor slab, we don’t need to excavate or compact soil. We just need to make the slab layout carefully.
So, pouring concrete in different structure needs different site preparation.
Formwork is used to give fresh concrete a desired shape and size. It should be strong enough to withstand against imposed loads till concrete gets its strength.
Reinforcement: Not all concrete structures need reinforcement. Such as Plain Cement Concrete (PCC) which doesn’t need reinforcement.
A structural member, built with both concrete and reinforcement, is called Reinforced Cement Concrete (RCC). This type of members are able to withstand against both compressive and tensile forces. Several rules should be followed for placing reinforcement in RCC members.
Mixing concrete: It is also called concrete batching. It is the controlling of proportions of various concrete ingredients as per mix design. I published several articles about concrete mixing in this blog before. Click links below to read more:
Pouring/Placing concrete: Concrete should be placed as soon as mixing is finished. Some rules should be followed strictly during placing concrete. Such as –
Don’t throw concrete more than 5′ high.
Don’t over vibrate. It can cause for concrete segregation.
Take extra protective action during hot and cold weather.
Read the following articles:
Impact of Hot Weather on Concreting and Protective Actions
Common Problems of Concreting and How to Avoid Them.
Finishing: Not all concrete structure require finishing. Such as top of column, top of footing and top of wall, etc. Those are left unfinished after vibrating. But many other concrete structure need finishing. The purpose of finishing is to make the top surface level and smooth.
Curing: After 24 hours of pouring concrete, curing should be started. Read more about curing:
Dear readers, I spent almost 12 hours to complete this guide of concrete construction process. So if you like this post or if this post helps you a little, please share with your friends through social networks.