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A kind of sleeve grouting material for prefabricated components and preparation method thereof

A sleeve grouting and prefabricated component technology, which is applied in the field of prefabricated component building materials, can solve problems such as poor fluidity, and achieve the effects of improving flow performance, uniform grouting materials, and reducing brittleness

Active Publication Date: 2022-05-10
FUJIAN KZJ NEW MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of poor fluidity of the grouting material mentioned in the above-mentioned background technology during use, the present invention provides a sleeve grouting material for prefabricated components, which is composed of dry powder of sleeve grouting material for prefabricated components, water and polycarboxylic acid Mixed with water; the dry powder of sleeve grouting material for prefabricated components is composed of the following components: 70-100 parts by weight of cement, 75-100 parts by weight of mixed sand, 20-30 parts by weight of glass powder, and 1-30 parts by weight of expansion agent. 3 parts by weight, 1 to 3 parts by weight of thickener, and 1 to 3 parts by weight of toughening agent; wherein, the mass ratio of the dry powder of the sleeve grouting material for prefabricated components to water is 1:0.1 to 0.15; the polycarboxylate Acid superplasticizer is a comprehensive shrinkage-reducing polycarboxylate superplasticizer, with a dosage of 2% to 3%, which has the effects of defoaming and low heat of hydration

Method used

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  • A kind of sleeve grouting material for prefabricated components and preparation method thereof
  • A kind of sleeve grouting material for prefabricated components and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In parts by weight, weigh 63 parts of machine-made sand and 7 parts of molybdenum tailings sand, and stir in a mortar mixer at a medium speed for 5 minutes to obtain mixed sand. Add 1 part of water-soluble polyether polyurethane, 1 part of hydroxyethyl methylcellulose ether, and 1 part of methyl methacrylate-butadiene-styrene polymer into the reaction kettle, add water, and adjust the temperature to 20°C , stirred for 20 minutes to make it dissolve, then added mixed sand and 20 parts of 100-mesh beer bottle ground powder under stirring, continued to stir for 20 minutes, then added 1 part of polycarboxylate superplasticizer and 70 parts of cement, and stirred evenly for 20 minutes. The rest of the water is added to obtain the sleeve grouting material for the prefabricated component.

Embodiment 2

[0035] In parts by weight, weigh 68 parts of machine-made sand and 12 parts of molybdenum tailings sand, and stir in a mortar mixer at a medium speed for 4 minutes to obtain mixed sand. Add 2 parts of water-soluble polyester polyurethane, 2 parts of hydroxypropyl methylcellulose ether, and 2 parts of acrylonitrile-butadiene-styrene polymer into the reaction kettle, add water, adjust the temperature to 30°C, and stir for 15 minutes , to make it dissolve, then under stirring, add 25 parts of mixed sand and 150 mesh waste glass ground powder, continue stirring for 25 minutes, then add 3 parts of polycarboxylate superplasticizer and 80 parts of cement, stir evenly for 15 minutes, add the rest water, that is, the sleeve grouting material for the prefabricated component.

Embodiment 3

[0037]In parts by weight, weigh 68 parts of machine-made sand and 12 parts of molybdenum tailings sand, and stir in a mortar mixer at a medium speed for 3 minutes to obtain mixed sand. Add 2 parts of water-soluble polyester polyurethane, 2 parts of hydroxypropyl methylcellulose ether, and 2 parts of acrylonitrile-butadiene-styrene polymer into the reaction kettle, add water, adjust the temperature to 40°C, and stir for 10 minutes , to make it dissolve, then under stirring, add 25 parts of mixed sand and 150 mesh waste glass ground powder, continue stirring for 30 minutes, then add 3 parts of polycarboxylate superplasticizer and 80 parts of cement, stir evenly for 20 minutes, add the rest water, that is, the sleeve grouting material for the prefabricated component.

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Abstract

The invention belongs to the field of prefabricated component building materials, in particular to a sleeve grouting material for prefabricated components and a preparation method thereof. The grouting material is prepared by mixing the dry powder of sleeve grouting material for prefabricated components with water and polycarboxylate water reducing agent; the dry powder of grouting material is composed of the following components: 70-100 parts by weight of cement, 75-100 parts by weight of mixed sand, glass powder 20 to 30 parts by weight, 1 to 3 parts by weight of expansion agent, 1 to 3 parts by weight of thickener, and 1 to 3 parts by weight of toughening agent; 0.15; Polycarboxylate superplasticizer is a comprehensive shrinkage-reducing polycarboxylate superplasticizer, with a dosage of 2% to 3%, which has the effects of defoaming and low heat of hydration. The comprehensive shrinkage-reducing polycarboxylate superplasticizer introduced in the present invention can effectively reduce the influence of air bubbles in the polycarboxylate superplasticizer during use, and can reduce the heat of hydration of cement and reduce the use of sleeve grouting materials in prefabricated components The shrinkage during the process is conducive to the mass promotion and use of prefabricated components.

Description

technical field [0001] The invention relates to the field of prefabricated component building materials, in particular to a sleeve grouting material for prefabricated components and a preparation method thereof. Background technique [0002] As the concept of green environmental protection is becoming more and more popular, for the construction industry, the application of green building materials and green buildings is becoming more and more extensive. As the main means of building green development, the steel sleeve grouting connection technology is involved in various fields such as industrial and civil construction, road bridges, underground engineering, ocean engineering, and nuclear power engineering. The grouting connection technology adopts the method of factory prefabricated components and on-site connection, which not only reduces the cumbersome construction procedures, but also saves energy, reduces emissions, and protects the environment. Factory prefabrication ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B111/70
CPCC04B28/00C04B2111/70C04B2201/50C04B24/2682C04B2103/302C04B14/06C04B14/22C04B24/282C04B24/383C04B18/12C04B24/2688C04B24/24Y02W30/91
Inventor 李格丽方云辉朱少宏郭元强林添兴
Owner FUJIAN KZJ NEW MATERIALS CO LTD
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