Too much of anything is dangerous, as the saying goes, and the contents of concrete are no exception. Concrete is a composite material made of fine and coarse aggregate (sand and gravel) bonded with cement paste. There are standard measurements to be followed when mixing these contents in order to produce high-grade material.
Incorrect proportions may result in poor-quality concrete, which could affect the stability of the structure it will be used for and endanger the lives of that structure’s future occupants. Here’s what happens when you put too much of each of the main contents of concrete.
Too Much Sand.
Sand is added to increase concrete’s durability and decrease time dependent deformations such as shrinkage and creep. If you add too much of it, though, the result would be the opposite. The concrete would become brittle and weak against all kinds of lateral and vertical forces.
Too Much Gravel.
Also an aggregate, gravel has the same purpose as sand, yet since each piece of gravel is coarser and larger, the effect of having more of it in the mixture can be far greater. Exceedingly large quantities of gravel mean less space for cement paste, which leads to poor bond between the aggregates. If there is not enough cement to hold the aggregate together, the structure will collapse.
Too Much Cement.
Cement is responsible for increasing concrete’s shear strength. Essentially, adding more cement could improve concrete’s overall capacity, but exceeding the limit may reduce concrete’s other essential properties, which it gets from the aggregates.
Too Much Water.
When it comes to the amount of water you should use to produce mortar, there’s a safe operable range to observe. Going over and beyond this range reduces the strength of concrete. Certain concrete applications, however, require higher water content. To be sure how much water to add into the mixture, always refer to the approved building code.
The Role of Concrete Forming Systems
Proper installation of formwork goes hand in hand with concrete preparation. Regardless of whether the concrete is perfectly mixed if the formwork isn’t strong enough to hold it up for until it totally cures, the entire project would fail. All the processes from material selection and concrete mixture to formwork construction and concrete pouring must be done precisely according to all agreed specifications to prevent collapse during or after the structure is built.
Buying high-quality concrete wall forms for sale from top suppliers like Leco Concrete Forms & Supply is essential to the success of any concrete-based construction projects. This company provides all kinds of formwork that suit projects of all sizes and complexities.