Other than using concrete sealer to waterproof concrete, there are other ways of doing it. Let us have a look at some of them.
1. Bituminous Membrane
This is used on low concrete roofs that have a low slope. The bituminous membrane has a self-adhesive membrane. It contains polymers, asphalt, and filler. Although it is highly sticky and waterproof, it has a low shelf-life because the bonding power of the membrane reduces with time.
2. Bituminous Coating
The bituminous coating, also known as asphalt coating, is protective and flexible. It is also waterproof and protects concrete well. It is made of bitumen and is very brittle when exposed to UV rays.
3. Liquid Waterproofing Membrane
This is a thin coating comprising a primer coat and two coats of waterproof liquid. It is applied by spraying or rolling. It forms a rubber-like coating on your concrete. The durability of the Liquid waterproof membrane depends on the polymer the liquid waterproofing is made of. Much as it is relatively cheap and easy to apply, the liquid waterproofing membrane does not offer sufficient coverage on concrete.
4. Cementitious Waterproofing
This is the easiest method of waterproofing concrete. It is also cheap because the materials used are cheaply available. The method is mostly used in such areas as washrooms. That means it remains wet most of the time since washrooms are often wet. Therefore expansion will not occur because of the moist conditions.
5. Crystalline Admixtures
Crystalline admixtures are available in powder form. They use water to form crystals inside the concrete. Therefore, they close the trails for moisture that harms concrete.