How is concrete made?

How is concrete made?

The dosage for make concrete is as follows: 1 volume of cement, 2 volumes of sand, 3 volumes of gravel and ½ volume of water. It’s the 1-2-3 rule. The dosage for making mortar is as follows: 1 volume of cement, 3 or 4 volumes of sand and ½ volume of water.

What are the advantages of permeable concrete?

Permeable concrete is used for all exterior applications where runoff and water accumulation are a nuisance. Apart from traditional roads and sidewalks, porous concretes can be used in the field of individual houses.

Is the concrete impermeable?

Is the concrete waterproof? In the classic mix, the concrete is not 100% waterproof. The water resistance of concrete also depends on the quality of its drying and hardening. Fresh, damp concrete is more susceptible to repeated soaking than fully “finished” concrete.

How to calculate the water permeability of concrete?

Determination of water permeability of concrete. Through the capillarity of the pores, the concrete absorbs water and pollutants. In the test the amount of water absorbed is compared with the amount evaporated (qd). Concrete counts as being waterproof, if the amount of water evaporated is greater than that which is absorbed (qw).

How to make concrete?

Before going into details on how to make concrete, it is important to know more about this legendary material. Combining performance and quality, concrete has been THE most widely used construction material for decades. This composite material is made from a mixture of ingredients including gravel, sand, water and cement.