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Topical sealers can provide visual enhancement as well as topical protection from stains and chemicals. They require a dry, clean surface during application to gain adhesion. Topical sealers may alter the coefficient of friction which can make substrates slick when wet – a condition that can be remedied by adding anti-skid materials.
The concrete floor is cut with a variety of diamond abrasives of the concrete slab. Polishing can be done wet or dry. However, in the United States, new OSHA regulations on crystalline silica and protecting skilled trades in the concrete, masonry, and brick industries are encouraging the development of wet refinement systems or the use of ...
A common example is polyethylene sheeting laid under a concrete slab to prevent the concrete from gaining moisture through capillary action. [5] A DPM may be used for the DPC. Integral damp proofing in concrete involves adding materials to the concrete mix to make the concrete itself impermeable. [4]
Masonry walls are built with a damp-proof course to prevent rising damp, and the concrete in foundations needs to be damp-proofed or waterproofed with a liquid coating, basement waterproofing membrane (even under the concrete slab floor where polyethylene sheeting is commonly used), or an additive to the concrete.
However, interior sealers are good for preventing high atmospheric humidity inside the basement from absorbing into the porous masonry and causing spalling. Spalling is a condition where constant high humidity or moisture breaks down masonry surfaces, causing deterioration and shedding of the concrete surfaces.
A slab-on-grade or basement floor should be poured over a cross-laminated polyethylene vapor barrier over 4 inches (10 cm) of granular fill to prevent wicking of moisture from the ground and radon gas incursion. Inside a steel building, water vapor will condense whenever it comes into contact with a surface that is below the dew point temperature.