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A kind of sleeve grouting material for steel bar connection for prefabricated buildings

A sleeve grouting and assembly technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of hidden quality problems in the finished grouting material, achieve enhanced activation effect, reduce cost, and high activity Effect

Active Publication Date: 2022-02-15
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if retarders are used to control the hydration reaction, there are quality problems in the finished grouting material

Method used

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  • A kind of sleeve grouting material for steel bar connection for prefabricated buildings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The sleeve grouting material provided in this embodiment includes the following components by weight: 820 parts of cement, 120 parts of waste concrete active micropowder, 950 parts of quartz sand, 60 parts of composite fiber, and 70 parts of admixture; wherein the waste concrete The active micro powder accounts for about 6% of the total amount of sleeve grout components.

Embodiment 2

[0043] The sleeve grouting material provided in this embodiment includes the following components by weight: 820 parts of cement, 100 parts of waste concrete active micropowder, 950 parts of quartz sand, 60 parts of composite fiber, and 70 parts of admixture; that is, the waste concrete The active micropowder accounts for 5% of the total amount of sleeve grout components.

Embodiment 3

[0045] The sleeve grout provided in this embodiment includes the following components by weight: 820 parts of cement, 143 parts of waste concrete active micropowder, 950 parts of quartz sand, 60 parts of composite fiber, and 70 parts of admixture; that is, the waste concrete The active micro powder accounts for about 7% of the total amount of sleeve grout components.

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Abstract

The invention discloses a sleeve grouting material for steel bar connection used in prefabricated buildings, which comprises the following components by weight: 700-900 parts of cement, 80-150 parts of waste concrete active micropowder, 800-1100 parts of quartz sand, 10-90 parts of composite fiber, 30-110 parts of admixture; the waste concrete active micropowder used adopts a special physical-chemical combination activation technology, which significantly improves the mechanical strength of the sleeve grouting material and improves the fluidity of the grouting material .

Description

technical field [0001] The invention belongs to the field of cement-based building materials, in particular to a sleeve grouting material for steel bar connection used in prefabricated buildings. Background technique [0002] Prefabricated buildings are one of the most important structural forms in the process of housing industrialization in my country. This kind of prefabricated building has a fast construction speed and is less restricted by climatic conditions. It can better control the construction quality, construction period, labor consumption and cost. It has low energy consumption and pollution for on-site construction, low labor cost, and high production efficiency. Advantage. The key technology in the construction of prefabricated buildings is the connection between the nodes of the structural parts. If there is a problem with the quality of the connection of the nodes, it may cause cracks in the components, or cause the structure to disintegrate and collapse. At...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B18/16C04B20/02C04B20/04
CPCC04B28/04C04B18/16C04B20/04C04B20/026C04B20/023C04B2201/50C04B14/06C04B14/4643C04B16/0641C04B2103/302C04B24/16C04B18/021C04B14/28C04B22/143C04B24/42C04B24/128C04B24/121Y02W30/91
Inventor 孙小巍徐长伟李明丁兆阳于云武吴潜周红红王丽华张雯琪黄帅胡曼曼郜淼
Owner SHENYANG JIANZHU UNIVERSITY
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