dry grout

A grouting material and dry material technology, applied in the field of building materials, can solve the problems of affecting the construction period, slow curing, material strength loss, etc., and achieve the effect of good early strength performance, good fluidity performance and convenient operation

Active Publication Date: 2016-09-21
NANJING SUBAO ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of this type of material has the following problems in the construction process, such as: environmental protection problems, low temperature construction problems (under low temperature conditions, the curing is very slow, affecting the construction period), welding problems (rebar welding needs to be 115m away, otherwise it will be damaged due to excessive temperature. High carbonization will cause the material to lose its original function), fire prevention problems (since this type of material is not fire-resistant, it will cause adverse consequences due to premature loss of strength of the material in case of fire)

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A grout dry material includes the following components:

[0016] 42.5# Ordinary Portland cement is 300kg, aluminate cement is 5kg, quartz sand is 500kg, CSA expansion agent is 5kg, lithium carbonate is 0.05kg, calcium formate is 0.5kg, polycarboxylate superplasticizer with polyester structure It is 1kg.

[0017] Add 140-160 kg of water to the dry material of the grouting material and stir evenly to obtain the grouting material slurry, which can be grouted according to actual needs. The performance parameters of the grout made with this ratio are shown in Table 1.

[0018] Table 1

[0019]

Embodiment 2

[0021] A grout dry material includes the following components:

[0022] 42.5# Ordinary Portland cement is 400kg, aluminate cement is 10kg, quartz sand is 600kg, CSA expansion agent is 8kg, lithium carbonate is 0.10kg, calcium formate is 1.0kg, polycarboxylate superplasticizer with polyester structure is 2kg.

[0023] Add 140-160 kg of water to the dry material of the grouting material and stir evenly to obtain the grouting material slurry, which can be grouted according to actual needs. The performance parameters of the grout made with this ratio are shown in Table 2.

[0024] Table 2

[0025]

[0026]

Embodiment 3

[0028] A grout dry material includes the following components:

[0029] 42.5# Ordinary Portland cement is 320kg, aluminate cement is 7kg, quartz sand is 550kg, CSA expansion agent is 5kg, lithium carbonate is 0.06kg, calcium formate is 0.7kg, polycarboxylate superplasticizer with polyester structure It is 1.5kg.

[0030] Add 140-160 kg of water to the dry material of the grouting material and stir evenly to obtain the grouting material slurry, which can be grouted according to actual needs. The performance parameters of the grout made with this ratio are shown in Table 3.

[0031] table 3

[0032]

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Abstract

The invention relates to a dry grouting material, which comprises the following components: 300-400 parts by weight of Portland cement, 5-10 parts by weight of aluminate cement, 500-600 parts by weight of quartz sand, CSA expansion The agent is 5-8 parts by weight, the lithium carbonate is 0.05-0.10 parts by weight, the calcium formate is 0.5-1.0 parts by weight, and the polycarboxylate superplasticizer is 1-2 parts by weight. The dry grouting material of the present invention is easy to operate, and only needs to be added with water and stirred evenly at the construction site. It has good fluidity, high strength, good early strength performance, and is non-corrosive to steel bars.

Description

technical field [0001] The invention relates to a building material, in particular to a dry grouting material. Background technique [0002] The reinforcement of concrete structures has always been a very hot topic. With the rapid development of the national economy and the improvement of people's living standards, people's demand for buildings is also constantly developing. Many existing buildings are , have been unable to meet the requirements of modern life, urgently need reinforcement and transformation. However, in the process of reinforcement and reconstruction, how to choose appropriate materials to meet the construction requirements, the use function of the building and the safety and environmental protection requirements is a very important content. In previous projects, organic polymer materials were mostly used, such as epoxy resin and unsaturated resin. The use of this type of material has the following problems in the construction process, such as: environment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B14/06
Inventor 孙卉王秀凤
Owner NANJING SUBAO ENERGY SAVING TECH
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