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Energy-saving vibration reduction concrete for house floor slabs

A technology for concrete and floor slabs, which is applied to building components, thermal insulation, sound insulation, etc., can solve the problems of small floor clearance, high construction cost, and large increase in floor slab thickness, and achieves reduced thickness, simple and fast construction, and good comprehensive functions Effect

Active Publication Date: 2012-10-10
江苏广兴集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce or improve the impact of the impact sound of the floor on the downstairs residents, a vibration-damping backing plate or elastic material is arranged on the floor structure layer, and a certain thickness of fine stone concrete is poured on it, and a decorative surface layer is made on it. It can meet the requirement of floor impact sound pressure ≤ 65dB, but there are some problems such as high construction cost, large increase in floor thickness, and small floor clearance

Method used

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  • Energy-saving vibration reduction concrete for house floor slabs

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Embodiment 1

[0022] Each raw material composition and mass proportioning are:

[0023] Cement: composite mineral admixture: sand: ceramsite: rubber particles = 364: 50: 510: 680: 48, the amount of polycarboxylate superplasticizer accounts for 1.2% of the cement mass, and the amount of fiber is 0.48kg / m 3 .

[0024] Ordinary Portland cement is used as cement with a strength grade of 42.5MPa.

[0025] The sand is river sand with a fineness modulus of 2.7, a mud content of ≤1%, a mud content of ≤0.5%, and other performance indicators meeting the requirements.

[0026] The ceramsite adopts a spherical shape, the particle size is 5-10mm, the cylinder compressive strength is 4.7MPa, and the bulk density is 570kg / m 3 , water absorption 7%, mud content 1.2%, apparent density 1140 kg / m 3 , porosity 46%.

[0027] The rubber particles are modified by NaOH, the maximum particle size is 2mm, and the apparent density is 980kg / m 3 , water absorption ≤ 8%.

[0028] The fiber is made of polypropylene...

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Abstract

The invention discloses energy-saving vibration reduction concrete for house floor slabs, and belongs to the field of concrete. The concrete is suitable for vibration reduction, sound insulation, energy conservation and heat preservation for high-requirement house floor slabs. The concrete comprises the following components in part by mass: 1 part of cement, 0.10 to 0.20 part of composite mineral admixture, 1.3 to 1.5 parts of sand, 1.5 to 2.0 parts of ceramsite and 0.1 to 0.15 part of rubber granules, wherein the admixture accounts for 1 to 2 percent of the mass of the cement, and the fiber content is 0.2 to 1kg / m<3>. The energy-saving vibration reduction concrete with high workability can be formed by soaking the ceramsite into water in advance, stirring the cement serving as a cementing material, the composite mineral admixture, the sand and the ceramsite for 1 minute in a stirrer, adding 50 percent of stirring water and the admixture, stirring for 1 minute, continuously stirring fibers and rest half water into the stirrer for 1 to 2 minutes. The concrete material is durable, reliable, pollution-free, low-carbon and environment-friendly; and the service life of the concrete can be matched with structural concrete in the floor slabs.

Description

technical field [0001] The invention relates to energy-saving and vibration-reducing concrete for residential floor slabs, belonging to the field of building concrete. It is mainly used in the structural layer of residential floors, located between the structural layer and the decoration layer, and meets the comprehensive functional needs of high-demand residential floor thermal insulation, energy saving, vibration reduction and sound insulation. Background technique [0002] With the improvement of people's living standards, there are new ideas and requirements for living space, environment, quality, etc., and the transition from the pursuit of living space in the past to the pursuit of residential quality. Standards and regulations such as "Technical Regulations for Healthy Housing Construction" (CECS179:2005), "Technical Standards for Housing Performance Evaluation" (GB50362-2005), "Evaluation Standards for Green Buildings" (GB 50378-2006), etc., put forward requirements ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04E04B1/88E04B1/98C04B14/02C04B16/12
Inventor 王军强姜艳霞孙克纬
Owner 江苏广兴集团有限公司