Prestress pipeline grouting agent, preparation method and grouting material

A prestressed pipeline and grouting agent technology, which is applied in the field of grouting agent preparation, can solve problems such as increased transportation costs, and achieve the effects of good fluidity, high structural strength, and uniform particles

Inactive Publication Date: 2019-05-03
深圳市红威达建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to ensure the quality of the grouting agent, many construction workers prepare the prestressed pipeline grouting agent in the factory in advance, then mix it with cement to form a sub-slurry, and then transport it to the site for construction, which can w

Method used

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  • Prestress pipeline grouting agent, preparation method and grouting material
  • Prestress pipeline grouting agent, preparation method and grouting material
  • Prestress pipeline grouting agent, preparation method and grouting material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0091] Example 8

[0092] The prestressed pipeline grouting agent, the difference between Example 8 and Example 4 is that the polycarboxylate water-reducing agent is replaced with a naphthalene-based high-efficiency water-reducing agent.

Example Embodiment

[0093] Example 9

[0094] The prestressed pipeline grouting agent, the difference between Example 9 and Example 4 is that the mineral powder is replaced with coal ash.

[0095] The preparation method of the prestressed pipeline grouting agent is to weigh the components according to the above table, and mix the components evenly.

[0096] Prestressed pipeline grouting slurry, the grouting agent prepared in Examples 1-9 and Comparative Examples 1-3 is mixed with special cement and water for roads, wherein the weight ratio of grouting agent and cement is 1:9, The ratio of the weight parts of grouting agent and cement to the weight parts of water is 1:0.28 to obtain prestressed pipeline grouting slurry.

[0097] The various indicators of the prestressed pipeline grouting slurry are tested, and the compressing slurry is made into a test block for testing. The testing basis is JTG / T F50-2011 "Technical Specification for Highway Bridge and Culvert Construction" The specific data are...

Example Embodiment

[0104] Example 10

[0105] Squeeze slurry, mix the grouting agent prepared in Example 4 with dam cement and water evenly, the weight ratio of grouting agent and cement is 1:9, and the sum of the weight parts of grouting agent and cement is equal to that of water. The weight ratio is 1:0.28.

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PUM

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Abstract

The invention relates to the technical field of grouting agent preparation, and particularly relates to a prestress pipeline grouting agent, a preparation method and a grouting material. The prestresspipeline grouting agent comprises the following components in parts by weight: 35-43 parts of mountain flour, 8-12 parts of a water reducer, 8-12 parts of a plastic expanding agent, 8-12 parts of a defoaming agent, 8-12 parts of silicon powder and 8-15 parts of quartz sand. Tests show that the grouting agent prepared by adopting the formula can be well compatible with various kinds of cement, theprepared grouting agent is more stable and balanced, and breaking strength and compressive strength at a later stage are both higher. Through the adoption of the formula, the content of the water reducer is reduced compared with the content of a water reducer in the prior art. The water reducer is an organic substance and can easily cause pollution in a production process, so that greenness and environment friendliness are achieved through the reduction of the usage amount of the water reducer.

Description

technical field [0001] The invention relates to the technical field of grouting agent preparation, in particular to a prestressed pipeline grouting agent, a preparation method and a grouting material. Background technique [0002] Prestressed pipeline grout is suitable for grouting of post-tensioned prestressed concrete channels in roads, railways, municipal bridges and nuclear power plants. In the early days, the grouting agent used in domestic prestressed pipeline grouting was generally pure cement slurry. During construction, cement, water, water reducing agent, expansion agent, etc. were used for on-site preparation. The on-site grouting agent must meet a certain ratio. In order to meet the maximum moisture rate, viscosity and compressive strength after solidification of the grout, but there are many types of cement, the ratio should be adjusted according to the performance of cement, water reducing agent, and expansion agent, which is prone to compatibility. Poor perfo...

Claims

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Application Information

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IPC IPC(8): C04B24/24C04B28/00
Inventor 殷大凯
Owner 深圳市红威达建材有限公司
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