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Polystyrene particle-rubber particle-pumice stone composite lightweight aggregate concrete and preparation method thereof

A technology of lightweight aggregate concrete and polystyrene particles, applied in ceramic products, other household appliances, sustainable waste disposal, etc., can solve the problem of poor workability between lightweight raw materials and concrete, high density of lightweight aggregate concrete, thermal insulation Insufficient effect and other problems, to achieve good toughness, good shock resistance, light weight

Active Publication Date: 2012-10-31
HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a polystyrene granule-rubber granule-pumice composite lightweight aggregate concrete and a preparation method thereof, which solve the problems of high raw material cost and high production energy consumption of the existing light aggregate concrete; and solve the problem of light raw material and concrete and Poor workability, light aggregate concrete has high density, high thermal conductivity, and poor thermal insulation effect; it also solves the technical problems that the preparation method of ordinary light aggregate concrete is easy to delaminate inside the concrete during mixing, which affects product performance. question

Method used

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  • Polystyrene particle-rubber particle-pumice stone composite lightweight aggregate concrete and preparation method thereof
  • Polystyrene particle-rubber particle-pumice stone composite lightweight aggregate concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0056] Embodiment two, this polystyrene granule-rubber granule-pumice composite lightweight aggregate concrete, described its raw material ratio by weight is as follows:

[0057] 1 part of cement;

[0058] 0.42 parts of fly ash;

[0059] 1.063 parts of pumice sand;

[0060] 0.003 parts of polystyrene particles;

[0061] 0.088 parts of rubber particles;

[0062] Admixture 0.012 parts;

[0063] Foaming agent 0.007 part;

[0064] 0.55 parts of water.

[0065] The pumice sand is used after being processed into a thin layer of shell-coated pumice sand. The polystyrene particles and rubber particles are polystyrene particles and rubber particles that have been treated with an interface treatment agent. The interface treatment agent is sodium silicate for silane coupling agent. Diluted in aqueous solution.

Embodiment 3

[0066] Embodiment three, this polystyrene particle-rubber particle-pumice composite lightweight aggregate concrete, described its raw material ratio by weight is as follows:

[0067] 1 part of cement;

[0068] 0.50 parts of fly ash;

[0069] Pumice sand 0.709 parts;

[0070] 0.004 parts of polystyrene particles;

[0071] 0.133 parts of rubber particles;

[0072] Admixture 0.010 parts;

[0073] Foaming agent 0.005 parts;

[0074] 0.55 parts of water.

[0075] The pumice sand is used after being processed into a thin layer of shell-coated pumice sand. The polystyrene particles and rubber particles are all polystyrene particles and rubber particles that have been treated with an interface treatment agent. The interface treatment agent is silica gel for titanate coupling agent Diluted with sodium bicarbonate solution.

Embodiment 4

[0076] Embodiment four, this polystyrene particle-rubber particle-pumice composite lightweight aggregate concrete, its raw material ratio by weight is as follows:

[0077] 1 part of cement;

[0078] 0.40 parts of fly ash;

[0079] 0.843 parts of pumice sand;

[0080] 0.003 parts of polystyrene particles;

[0081] 0.122 parts of rubber particles;

[0082] Admixture 0.015 parts;

[0083] Foaming agent 0.007 part;

[0084] 0.54 parts of water.

[0085] The pumice sand is used after being processed into a thin layer of shell-coated pumice sand. The polystyrene particles and rubber particles are polystyrene particles and rubber particles that have been treated with an interface treatment agent. The interface treatment agent is sodium silicate for silane coupling agent. Diluted in aqueous solution.

[0086] In the above-mentioned embodiments 1 to 4, the particle diameter of the pumice sand is 2-6 mm. The particle diameter of the polyphenylene particles is 4-7mm. The particl...

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Abstract

The invention discloses a method for preparing polystyrene particle-rubber particle-pumice stone composite lightweight aggregate concrete. The polystyrene particle-rubber particle-pumice stone composite lightweight aggregate concrete comprises the following raw materials in parts by weight: 1 part of cement, 0.40-0.50 part of coal ash, 0.80-1.20 parts of thin-layer cladded pumice sand, polystyrene particles and rubber particles, 0.010-0.015 part of admixture, 0.005-0.007 part of foaming agent, and 0.50-0.55 part of water. The preparation method comprises the following steps of: 1, preparing the thin-layer cladded pumice sand; 2, carrying out interface treatment on the polystyrene particles and the rubber particles; 3, adding the cement, the coal ash, the water, the admixture and the thin-layer cladded pumice sand to a stirring machine to be stirred according to proportions; 4, adding the polystyrene particles and the rubber particles subjected to the interface treatment in the stirring machine to be stirred continuously; and 5, after frothing, pouring the forthed foaming agent into the stirred mixture and uniformly stirring. According to the method disclosed by the invention, the mechanical property of the lightweight aggregate concrete is effectively improved; the thermal insulation performance is improved; and the production cost is reduced.

Description

technical field [0001] The invention relates to a lightweight aggregate concrete and a preparation method thereof. Background technique [0002] Light aggregate concrete is light concrete made of light aggregate with a bulk density not greater than 1900 kg / m, also known as porous aggregate light concrete. Because light aggregate concrete contains a large number of closed pores, it has light weight, good thermal insulation performance, and convenient construction. Compared with ordinary concrete of the same grade, it can reduce its own weight by more than 20-30%. Existing lightweight aggregate concrete is usually prepared into foam by mechanical means, and then the foam is added to the slurry composed of siliceous materials, calcium materials, water and various admixtures, etc. After mixing, stirring, It is formed by pouring and curing. At present, ceramsite, slag, pumice, expanded perlite, polystyrene foam plastic particles, etc. are mainly used as light raw materials. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00
CPCC04B20/12C04B28/02Y02W30/91C04B12/04C04B14/16C04B16/08C04B18/08C04B18/22C04B24/42C04B38/02C04B40/0035C04B2103/302C04B2103/601C04B20/1085C04B20/1055C04B20/1077
Inventor 白润山麻建锁卜娜蕊孙婧
Owner HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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