Inorganic cement foaming agent and application thereof

Abstract

The invention discloses a composite inorganic foaming agent taking an inorganic compound (hydrogen peroxide) as a main body, and an application of the composite inorganic foaming agent. The inorganic cement foaming agent comprises the following components by mass percentage, 90-95% of hydrogen peroxide, 5-10% of ammonium carbonate, and an assistant accounting for 0.05-0.5% of total mass percentage of hydrogen peroxide and ammonium carbonate. The application of the inorganic cement foaming agent comprises the steps of adding the inorganic cement foaming agent accounting for 2-5% of the mass percentage of cement to concrete cement grout for stirring, allowing the concrete to be foamed rapidly after 5-10s, allowing the volume of the concrete to be expanded to be full filled in a mold frame within 10min, and allowing the concrete to be solidified automatically after 3-5h to form a foamed concrete block. No foaming machine is required, and the foaming agent is directly added to the cement grout for stirring. The foaming agent has the advantages of good foaming effect, low cost and safety and convenience in use, and is suitable for mass production and worth for extensive popularization and application.

Description

technical field [0001] The invention relates to the manufacture of foamed concrete blocks used in industrial and civil buildings, walls and roofs, as well as thermal insulation, in particular to an inorganic cement foaming agent and its application. Background technique [0002] With the mandatory specification requirements for energy saving in urban housing construction, foam concrete blocks used for walls, roofs and thermal insulation of various industrial and civil buildings are widely used. One of the keys to the manufacture of foamed concrete blocks lies in the cement foaming agent. [0003] The foaming agent used in foam concrete is to put forward technical requirements for concrete foaming. In addition to the ability to generate large foam, it pays special attention to the stability of foam, the fineness of foam, the adaptability of foam and cement and other cementitious materials, etc. There are very few foaming agents in the narrow sense that can meet this require...

AI Technical Summary

Problems solved by technology

The problems of organic foaming agents for foam concrete are: (1) The amount of gas generation is small, generally only 15%-30% of that of inorganic foaming agents, and the amount of residues is large, including water and volatile substances, and sometimes there will be odor Odor and surface blooming: (2) The decomposition heat of foaming is large and difficult to remove, especially when the product wall thickness is large, it will cause the internal plastic to overheat and decompose, reducing performance; (3) The foaming agent is almost all Flammable, low decomposition temperature, care should be taken in storage and use