Asphalt-containing waterproof mortar and preparation method

Abstract

The invention discloses asphalt-containing waterproof mortar and a preparation method. The asphalt-containing waterproof mortar comprises the following components in parts by weight: 5-15 parts of anacrylic emulsion, 30 parts of asphalt, 10-25 parts of a polyurethane modified acrylate waterproof emulsion, 1-5 parts of an organosilicone waterproofing agent, 0.5-3 parts of silicon dioxide, 20-40 parts of a pigment and filler, 0-0.5 part of a bactericidal preservative, 0-1 part of an anti-aging agent, 0.2-0.8 part of a dispersing agent, 0.4-1 part of polyethylene glycol, 0.5-2 parts of a film-forming aid, 0.6-3 parts of hydroxyethyl cellulose, 0.3-1 part of ammonium metavanadate and 10-30 parts of water. The asphalt-containing waterproof mortar has excellent high elasticity and excellent waterproof performance; a product is non-toxic, tasteless, safe and environmentally friendly; a coating film is strong in water resistance, alkali resistance and ultraviolet resistance and has relativelyhigh elongation at break, relatively high tensile strength and a relatively high automatic repairing function.

Description

technical field

[0001] The invention belongs to the field of building materials, and more specifically relates to an asphalt waterproof mortar and a preparation method thereof. Background technique

[0002] There are two types of waterproof materials on the market: one is polyurethane waterproof coatings. Such materials are generally made of polyurethane and coal tar as raw materials. The tar gas it volatilizes is highly toxic and not easy to remove, so it was banned in China in 2000. The polyurethane waterproof coating that is still on sale uses asphalt instead of coal tar as a raw material. However, when using this kind of coating, it is generally diluted with organic solvents such as toluene and xylene, so it also contains toxicity; the other type is polymer cement-based waterproof coating. It is composed of a variety of water-based polymer emulsions and high-quality cement mixed with various additives. The flexibility of the polymer (resin) and the rigidity of the cem...