Chemical additives for protecting or sealing concrete; concrete preservative, namely, a liquid which penetrates the surface of concrete, cement, granite, and brick to make it dustproof, waterproof, crumble proof and wear proof; chemical products for use in the manufacture, preparation and treatment of concrete; chemical compositions for hardening, weatherproofing and waterproofing concrete; preservatives for tiles, masonry, cement, wood or brickwork; chemical compositions and gels for sealing, waterproofing, hardening and preserving concrete; Chemical additives and compositions for preserving concrete, cement, granite, brick and tile and for curing the crumbling and cracking of the same