In
construction, concrete is a composite building material made from a combination
of aggregate and cement binder. The most common form of concrete is Portland
cement concrete, which consists of mineral aggregates (usually gravel and
sand), cement and water. In the world of construction, concrete has a vital
role. Concrete construction is the building structure of a building. The
strength of concrete construction is the backbone of the building or not. Then
what are the concrete compilers themselves and what factors affect their
strength?
The
following is an explanation of the factors that influence the strength of a concrete
structure.
1. Cement content
The more cement material you will
use, the stronger and better reinforced concrete construction will be produced.
The use of cement is directly proportional to the strength of concrete
construction.
2. Water Content
The more water you use, the worse
the construction of the concrete. Although in the construction of lightweight
concrete construction, if water is used a lot, the construction of concrete is
easier to do and the work becomes lighter. The key is to use as little water as
possible, just so that a mixture of concrete construction can be done (can be
transported, casted, compacted and finished).
3. Water Mixture and Cement
Material or Cement Air Fakor
The higher the ratio of the
mixture of water and cement materials, the concrete construction will be even
worse. To improve the quality of concrete construction, the house must reduce
the ratio of water and cement materials.
The water and cement material is
the ratio between the weight of water compared to the weight of cement
material. If we symbolize water with W, and we symbolize the cement material
with C then the formula is FAS = W / C, where the density of water is 1 kg /
liter, and the density of cement material is 3150 kg / m3 (required American
Standard Testing and Material).
4. Aggregate (Sand and coral)
A mixture that is too much sand
even though it will make the concrete smooth but its strength is slightly
reduced, when compared to a normal mixture. The strength of the concrete will
decrease if the mixing uses molen for too long. Conversely, if concrete
consists of a lot of coral, concrete construction will be rough but its
strength becomes better when compared to concrete that uses more sand.