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Lightweight concrete

A lightweight concrete and mass fraction technology, applied in the field of concrete, can solve the problems of large concrete slump loss, poor fluidity, construction burden, etc., and achieve the effects of reducing slump loss, improving strength and saving cement.

Inactive Publication Date: 2016-09-14
句容联众科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the heavy weight of the existing concrete, it causes a strong burden on the construction; in addition, the water reducing agent used in the existing concrete makes the slump loss of the concrete very large and the fluidity is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The invention provides a lightweight concrete, comprising the following materials in mass fractions: water: 60-80, cement: 20-30, PC: 40-50, cobblestone: 200-300, river sand: 100-120, quicklime: 10 -15, foaming agent: 1-2, admixture: 3-5.

[0015] Preferably, the admixture is polycarboxylate water reducer.

[0016] Preferably, the blowing agent is a chemical blowing agent.

[0017] Preferably, the chemical foaming agent is an inorganic foaming agent.

[0018] Preferably, the inorganic blowing agent is one or more of calcium carbonate, aluminum carbonate, and sodium bicarbonate.

[0019] In the present invention, by using inorganic foaming agents, such as calcium carbonate, aluminum carbonate, sodium bicarbonate, etc., the above-mentioned substances can release carbon dioxide when they decompose, and form certain voids in the concrete, which is more suitable for the production of lightweight concrete.

Embodiment 2

[0021] The invention provides a kind of lightweight concrete, comprising the following mass fraction materials: water: 70, cement: 25, PC: 45, cobblestone: 250, river sand: 110, quicklime: 12.5, foaming agent: 1.5, admixture: 4.

Embodiment 3

[0023] The invention provides a kind of lightweight concrete, comprising the following materials in mass fraction: water: 60, cement: 20, PC: 40, cobblestone: 200, river sand: 100, quicklime: 10, foaming agent: 1, admixture: 3.

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PUM

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Abstract

The invention discloses a lightweight concrete. The lightweight concrete comprises, by mass, 60-80 parts of water, 20-30 parts of cement, 40-50 parts of PC, 200-300 parts of cobblestones, 100-120 parts of river sands, 10-15 parts of quicklime, 1-2 parts of a foaming agent and 3-5 parts of an additive. The lightweight concrete has the advantages of light weight, small slump loss, good fluidity, energy saving and environmental protection.

Description

technical field [0001] The invention relates to the field of concrete, in particular to a lightweight concrete. Background technique [0002] Concrete is a general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally speaking, the term concrete refers to cement as cementing material, sand and stone as aggregate; mixed with water (with or without admixtures and admixtures) in a certain proportion, and obtained by stirring, molding and curing. Cement concrete, also known as ordinary concrete, is widely used in civil engineering. Lightweight concrete is a new type of building energy-saving material that is waste-recycling, environmentally friendly, energy-saving, inexpensive and non-combustible. Lightweight concrete (foamed concrete) is formed by introducing air or nitrogen, carbon dioxide, oxygen and other gases into the concrete slurry according to the application requirements through chemical or physica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/00C04B111/40
CPCC04B28/00C04B2111/40C04B24/286C04B22/064C04B14/068C04B2103/302C04B22/10C04B38/02
Inventor 赵西建
Owner 句容联众科技开发有限公司
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