Heat-insulating concrete and preparation method thereof

Abstract

The invention relates to the technical field of concrete, in particular to heat-insulating concrete and a preparation method thereof. The heat-insulating concrete an comprises the following componentsin parts by mass: 10 to 30 parts of an activated regenerated concrete fine material, 10 to 12 parts of polystyrene foam particles, 10 to 15 parts of ceramsite, 20 to 50 parts of modified silicon dioxide aerogel, 2 to 6 parts of epoxy resin emulsion, 1.2 to 3.6 parts of reflective powder, 1.3 to 5 parts of steel fiber and 2 to 5 parts of a foaming agent. Compared with the common cement concrete, the concrete has the following advantages: the rubber concrete has the characteristics of light weight, high elasticity, toughness, durability, vibration reducing performance, impact resistance, burstresistance, gas permeability, water permeability, high-insulating property, noise-reducing and sound-insulating properties and the like, and has the potential to be a new green building material whichcan adapt to the building market requirement well.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to thermal insulation concrete and a preparation method thereof. Background technique [0002] 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. [0003] Most of the currently used self-insulating blocks are based on ordinary concrete blocks, and some measures are taken to improve the thermal insulati...

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Problems solved by technology

[0002] 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

[0003] Most of the currently used self-insulating blocks are based on ordinary concrete blocks, and some measures are taken to improve the thermal insulation performance of the blocks, such as thermal insulation blocks of expanded vitrified microbead concrete, lightweight concrete self-insulation blocks, etc., but The cost of materials for these self-insulating blocks is generally high, which makes the comprehensive cost of energy-saving insulation walls relatively high. When entering the building energy-saving market, its competitiveness is not strong and it is not suitable for promotion; at the same time, large-scale development and transformation of cities have produced A large amount of waste concrete will not be effectively used and consumed, which will cause serious pollution to the environment

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