Additive for prefabricated structural concrete and prefabricated structural concrete

A technology of concrete and additives, which is applied in the field of civil engineering, can solve the problems of low utilization rate of prefabricated concrete and achieve the effect of improving utilization rate

Inactive Publication Date: 2019-03-12
TIANJIN XINBIN ENG TECH INSPECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problems existing in the above-mentioned prior art, and provides an additive for prefabricated structural concrete and prefabricated structural concrete, which solves the problem of low utilization rate of prefabricated concrete prepared by existing additives

Method used

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  • Additive for prefabricated structural concrete and prefabricated structural concrete

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Embodiment Construction

[0028] Below in conjunction with embodiment, the additive of a kind of prefabricated structural concrete of the present invention and prefabricated structural concrete are described further:

[0029] Compressive strength and flexural strength are important performance indicators of concrete. According to the provisions of "GBJ81-85 Test Method for Mechanical Properties of Ordinary Concrete", the compressive strength, flexural strength and compressive strength of concrete are measured by a pressure testing machine. The larger the value of flexural strength and flexural strength, the stronger its ability to resist damage. Slump is an important index to measure the workability of concrete. The larger the slump value, the better the plasticity and pumpability of the concrete, that is, the better the fluidity and cohesion of the concrete.

[0030] An additive for prefabricated structural concrete, the raw materials are calculated by weight percentage, including the following compon...

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Abstract

The invention provides an additive for prefabricated structural concrete and the prefabricated structural concrete. The additive is prepared from the following components by weight: 30-40% of polycarboxylate water-reducing agent, 5-10% of carboxymethyl cellulose, 10-15% of sodium alkyl benzene sulfonate, 3-15% of polyacrylamide, 0.1-0.3% of viscosity modifier, 0.5-1% of workability auxiliary and 40-60% of water. The utilization ratio of the structural concrete prepared by the additive provided by the invention is in a range of 80-85%, and the compressive strength, flexural strength and slump value of the additive meet the performance requirements of the standard C30, and meet the use requirements.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to an additive for prefabricated structural concrete and prefabricated structural concrete. Background technique [0002] Prefabricated structural concrete is a structural concrete that is assembled / connected with prefabricated components as the main force-bearing components. Prefabricated structural concrete is one of the important directions for the development of my country's building structures. It is conducive to the development of my country's building industrialization, improving production efficiency and saving energy, developing green and environmentally friendly buildings, and is conducive to improving and ensuring the quality of construction projects. Compared with the cast-in-place construction method, prefabricated structural concrete is beneficial to green construction, because prefabricated construction can better meet the requirements of green constructio...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B28/02
CPCC04B40/0039C04B28/02C04B2201/50C04B24/383C04B24/20C04B24/2652C04B24/38C04B2103/302C04B2103/0068C04B14/02C04B14/06C04B18/08C04B18/141C04B18/165C04B18/16C04B18/10C04B18/0427
Inventor 郭少敏杨兴亮裴丽梅高翔
Owner TIANJIN XINBIN ENG TECH INSPECTION
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