Lightweight concrete exterior wall insulation building block and production method thereof

Abstract

The invention discloses a lightweight concrete exterior wall insulation building block and a production method thereof. The lightweight concrete exterior wall insulation building block is prepared by mixing the following raw material components in proportion by weight: 20-50 of cement, 20-40 of fly ash, 8-20 of fine sand, 1-8 of calcareous material, 5-16 of plant filler, 0.2-0.5 of adjuvant, 8-15 of water and 0.3-0.7 of foaming agent. The production method of the lightweight concrete exterior wall insulation building block comprises the following steps of: forming raw material slurry by uniformly mixing production raw materials in mixing proportion; adding the water to the foaming agent, and generating uniform and stable bubbles by using a foaming device; mixing the bubbles with the raw material slurry so as to prepare bubble concrete slurry; and casting the bubble concrete slurry into a mold and curing. According to the lightweight concrete exterior wall insulation building block and the production method of the lightweight concrete exterior wall insulation building block, the plant filler, such as sawdust or crop straw powder, is mixed, so that the weight is reduced, the flexibility is improved, and the improvement on the strength of a finished product and the cracking prevention are favored; and the bubbles are enabled to be uniformly distributed in the raw material slurry by adding the foaming agent, so that not only is the weight of the building block reduced, but also the heat preservation and heat insulation effects are improved.

Description

[0001] technical field [0002] The invention relates to building materials, in particular to a thermal insulation block for building exterior walls and a production method thereof. Background technique [0003] At present, my country's existing building exterior wall materials mainly include clay solid bricks, clay hollow bricks, porous bricks, shale bricks, concrete blocks, unfired cement bricks, etc. The above exterior wall materials generally have thermal conductivity High, poor thermal insulation performance, can not meet the country's energy-saving requirements for housing construction, the use of the above materials also need to do thermal insulation layer on the outer surface or inner surface of the wall to meet the requirements of relevant specifications, and there are still poor thermal insulation effects , weight and other defects. Contents of the invention [0004] The object of the present invention is to overcome the deficiencies of the prior art, provide a th...

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Problems solved by technology

[0003] At present, my country's existing building exterior wall materials mainly include clay solid bricks, clay hollow bricks, porous bricks, shale bricks, concrete blocks, unfired cement bricks, etc. The above exterior wall materials generally have thermal conductivity High, poor thermal insulation performance, can not meet the country's energy-saving requirements for housing construction, the use of the above materials also need to do thermal insulation layer on the outer surface or inner surface of the wall to meet the requirements of relevant specifications, and there are still poor thermal insulation effects , heavy and other defects