Composite foam mortar, and preparation and construction method thereof

Abstract

The invention relates to a composite foam mortar, which is prepared from the components by the following weight percentage through mechanically and evenly stirring: 20 to 30 percent of ordinary Portland cement, 5 to 8 percent of white lime, 8 to 10 percent of fly ash, 15 to 20 percent of light aggregate, 30 to 40 percent of heavy aggregate, 1.6 to 2.0 percent of foam initiator, and 3.0 to 5.0 percent of strength-keeping rubber powder, wherein the light aggregate is an inorganic vitrification hollow microsphere material; the heavy aggregate is a mixture of sand and coarse whiting powder; and the foam initiator is a mixture of an anionic surfactant and a foam stabilizer. The 30 to 50 weight percent of composite foam mortar is diluted by water, is constructed on a wall surface by a mortar mixer with instant mixed spray coating, and is scraped evenly by a running rule or a putty knife. The composite foam mortar can be constructed by adopting a mechanical guniting technology, thus the construction efficiency and the construction quality are improved, the material dosage on a unit area is reduced, and the cost is reduced. The composite foam mortar also has the advantages of water resistance and heat insulation, improved crack resistance, good compatibility with base layer brickworks, and simple and practical process; besides, the composite foam mortar is applicable to waterproof and heat insulation decoration engineering on the inner and outer surfaces of the outer walls of all buildings, in particular to the moist environments with high requirements on water resistance and heat insulation in south China.

Description

technical field [0001] The invention relates to a construction mortar, in particular to a composite foam mortar and its production process and construction method. Background technique [0002] After the high-speed and stable development of commercial concrete, commercial mortar will become a new trend in the development of urban construction industry. The development of dry powder mortar for construction will play an important role in ensuring product quality, facilitating construction and reducing environmental pollution. The development of special-purpose mortar will be able to replace some imported products and solve the special needs of some projects for material performance. The development of dry powder mortar for construction will play an important role in ensuring product quality, facilitating construction and reducing environmental pollution. High-efficiency and energy-saving composite external wall waterproof and thermal insulation decoration system is an innova...

AI Technical Summary

Problems solved by technology

At present, the popular rubber powder polystyrene particle thermal insulation mortar and ordinary inorganic thermal insulation mortar in the market cannot be sprayed mechanically, the construction efficiency is low, the construction quality is poor, and the cost per unit area is high.