Green environment-friendly concrete aerating brick and preparation method thereof

Abstract

The invention relates to a green environment-friendly concrete aerating brick which is characterized by being prepared from the following raw materials in parts by weight: 200 parts of coal ash, 40-50 parts of clay, 50-60 parts of limestone, 10-12 parts of calcium stearate, 8-10 parts of sodium bicarbonate, 20-30 parts of polyethylene glycol, 20-30 parts of pyromellitic dianhydride, 80-100 parts of methylbenzene, 1-2 parts of p-toluene sulfonic acid, 8-10 parts of disodium hydrogen phosphate, 6-8 parts of calcium carbide, 20-30 parts of phosphoric acid, 6-8 parts of sodium pimaric acid, 6-8 parts of sodium methylene dibenzoate, 5-6 parts of sodium formate, 12-15 parts of cellulose ether, 15-20 parts of polypropylene fiber and a defined amount of water. The green environment-friendly concrete aerating brick prepared according to the invention has excellent complex technical properties, such as, heat insulation, thermal insulation, sound insulation, anti-seismic effect and durability.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a green and environment-friendly concrete aerated brick and a preparation method thereof. Background technique [0002] Concrete aerated brick has a special pore structure and contains a lot of air, so it has good heat insulation performance. In addition, it also has light weight, sound absorption and sound insulation, waste utilization, energy saving, good fire performance, nailable, It has the advantages of sawing, planing and anti-seismic ability, so it is widely used in the external wall enclosure of buildings and the insulation of internal and external walls. At present, the impermeability and corrosion resistance of the concrete aerated bricks prepared by the existing technology are generally not high, and they are prone to cracking, even breaking and collapsing under long-term water impact or strong corrosive environments. security risks. [0003] In the art...

AI Technical Summary

Problems solved by technology

At present, the impermeability and corrosion resistance of concrete aerated bricks prepared by the existing technology are generally not high, and they are prone to cracking, even breaking and collapsing under long-term water impact or strong corrosive environment, which has great potential security risks

[0003] In the article "Experimental Research on Mud-Containing Siliceous Chips-Lime Aerated Concrete", the author Chen Youzhi and others used siliceous chips with different mud contents as siliceous materials to prepare B05 by hydrothermal synthesis reaction with lime-calcareous materials. , B06 grade air-entrained concrete, although the compressive strength of the air-entrained concrete obtained by this method has been improved, but the impermeability and corrosion resistance are still not high