Low-density foaming cement and preparation method thereof

A foamed cement, low-density technology, applied in the field of lightweight energy-saving building materials and their preparation, can solve the problems of affecting building energy-saving effect, poor thermal insulation performance, high density, etc., to reduce cracks, shorten setting time, and improve stability. Effect

Active Publication Date: 2014-10-22
广东建科建设咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, foamed cement in construction engineering applications generally has defects such as high density and poor thermal insulation p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] 120 parts of cement, 1.0 part of coagulant, 1.0 part of foam stabilizer, 1.2 parts of water reducing agent, 11 parts of foaming agent, 0.5 part of fiber, 50 parts of water.

[0033] The dry bulk density of the obtained low-density foamed cement is 141kg / m 3 , 28 days strength 0.2Mpa, thermal conductivity 0.049w / (m·K).

Example Embodiment

[0034] Example 2

[0035] 60 parts of cement, 0.3 parts of coagulant, 0.4 parts of foam stabilizer, 0.5 parts of water reducing agent, 9 parts of foaming agent, 0.2 parts of fiber, 25 parts of water.

[0036] The dry bulk density of the obtained low-density foamed cement is 72kg / m 3 , 28 days strength 0.1Mpa, thermal conductivity 0.034w / (m·K)

Example Embodiment

[0037] Example 3

[0038] 90 parts of cement, 0.7 parts of coagulant, 0.8 parts of foam stabilizer, 0.8 parts of water reducer, 12 parts of foaming agent, 0.3 parts of fiber, 35 parts of water.

[0039] The dry bulk density of the obtained low-density foamed cement is 110kg / m 3 , 28 days strength 0.1Mpa, thermal conductivity 0.041w / (m·K).

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PUM

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Abstract

The invention discloses a low-density foaming cement, which comprises the following components in parts by weight: 60 to 120 parts of cement, 0.3 to 1.0 part of coagulant, 0.4 to 1.0 part of foam stabilizer, 0.5 to 1.2 parts of water reducer, 9 to 14 parts of foaming agent, 0.2 to 0.5 part of fiber, and 25 to 50 parts of water. The invention also discloses a preparation method of the low-density foaming cement. The low-density foaming cement is prepared through the following steps: evenly stirring dry powder, adding water to prepare cement slurry, adding a foaming agent under rapid stirring, casting to mould, and carrying out natural maintenance; and has the advantages of low dry density and low thermal conduction coefficient.

Description

technical field [0001] The invention relates to a lightweight energy-saving building material and a preparation method thereof, in particular to a low-density foamed cement and a preparation method thereof. Background technique [0002] Driven by energy-saving and thermal insulation policies for wall materials, energy-saving building materials have developed rapidly. At present, a large number of organic insulation materials are used in the market, such as polystyrene foam, extruded polystyrene board, polyurethane and so on. These organic insulation materials have great fire safety hazards, short service life, and need to be replaced several times during the life of the building. The cumulative cost is huge, and at the same time it causes serious environmental pollution, which runs counter to the development of circular economy and construction of a conservation-oriented society advocated by the state. [0003] Foamed cement is a kind of lightweight inorganic thermal insula...

Claims

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Application Information

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IPC IPC(8): C04B24/20C04B24/12C04B7/32
Inventor 李建新王新祥王元光陈培鑫陈耿郑靓郑焕奇
Owner 广东建科建设咨询有限公司
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