An additional precaution against dampness is to incorporate a waterproofing admixture, properly proportioned, to the cement, aggregates and water before the concrete is mixed.

The advanced carboxylic acid waterproofing agent became main content of cement liquid water-repellent admixture that Korean most used.

The effects of the different content of special manufactured sand, fly-ash, waterproof admixture on the self-shrinkage of the cement matrix grouting paste were studied in this article.