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A non-shrinkage high-strength perfusion mortar material and its preparation method

A mortar material and non-shrinkage technology, which is applied in the field of non-shrinkage high-strength perfusion mortar material and its preparation, can solve the problems of poor volume stability, unstable workability of mixtures, and short construction time of mixtures, and achieves improvement. Construction performance, guaranteed performance effect

Active Publication Date: 2017-07-21
山西天昇测绘检测工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a non-shrinkage high-strength grouting mortar material and its preparation method in order to solve the shortcomings of the existing grouting materials such as short construction time of the mixture, unstable workability of the mixture, and poor volume stability.

Method used

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  • A non-shrinkage high-strength perfusion mortar material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: A non-shrinkage high-strength perfusion mortar material, the raw material components and the mass percentages of each component in the total raw material are as follows: Portland cement: 12%; high alumina cement 80%; dihydrate gypsum 8%; Carboxylic acid high-efficiency water reducer, retarder and polypropylene fiber are according to the mass ratio of cementitious material: retarder 0.5%; polycarboxylate high-efficiency water reducer 1%; polypropylene fiber 0.08%; The agent is a compound of boric acid and sodium gluconate in a ratio of 1:1. The specification of the polypropylene fiber: the length is 4-6mm, and the diameter is 0.06-0.08mm.

[0011] A method for preparing non-shrinkage high-strength grouting mortar material, the specific steps are as follows: (1) Preparation of raw materials and utensils: before preparation, place the raw materials and utensils at a temperature of 23±2°C and a relative humidity of 50% to 90% for ≥24h ; (2) Weigh each raw mat...

Embodiment 2

[0017] Example 2: A non-shrinkage high-strength pouring mortar material, the raw material components and the mass percentages of each component in the total raw material are as follows: Portland cement 14%, high alumina cement 78%, gypsum 8%, polycarboxylic acid high-efficiency The water reducer, retarder and polypropylene fiber are calculated based on the quality of the glue material: 1% polycarboxylate superplasticizer, 0.5% retarder, and 0.08% polypropylene fiber; the retarder is Boric acid is compounded with sodium gluconate in a ratio of 1:0.8. The specification of the polypropylene fiber: the length is 4-6mm, and the diameter is 0.06-0.08mm. The preparation method and application specification are the same as the preparation method and application specification described in Example 1.

[0018] The basic performance testing indicators of the prepared non-shrinkage high-strength grouting mortar material are shown in Table 2. The results can be concluded: the construction ...

Embodiment 3

[0021] Example 3: A non-shrinkage high-strength pouring mortar material, the raw material components and the mass percentages of each component in the total raw material are as follows: Portland cement: 20%; high alumina cement 70%; dihydrate gypsum 10%; Carboxylic acid high-efficiency water reducer, retarder and polypropylene fiber are according to the mass ratio of glue material: retarder 0.2%; polycarboxylate high-efficiency water reducer 1%, polypropylene fiber 0.05%; wherein the retarder It is compounded in the ratio of boric acid and sodium gluconate 1:0.8. The specification of the polypropylene fiber: the length is 4-6mm, and the diameter is 0.06-0.08mm. The preparation method and application specification are the same as the preparation method and application specification described in Example 1. The material is suitable for road repair and tunnel plugging.

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Abstract

The invention belongs to the research and application field of grouting materials, and provides a non-shrinkage high-strength grouting mortar material in order to solve the shortcomings of the existing grouting materials such as short construction time of the mixture, unstable workability of the mixture, and poor volume stability. and its preparation method. It is prepared in a certain proportion from Portland cement, high alumina cement, dihydrate gypsum, retarder and polycarboxylate superplasticizer. The invention improves the construction performance of the pouring mortar material, ensures the stable performance of the pouring mortar mixture, and makes it have good adjustable construction performance, micro-expansion performance and excellent crack resistance. Dynamically adjust the construction performance of the material mixture and expand the application field of the product. On the basis of traditional mechanical equipment installation, reinforcement and repair projects, it can be applied to concrete structure reconstruction, reinforcement and prestressed tunnel grouting, anchor sealing, road repair, tunnel Plugging and other fields.

Description

technical field [0001] The invention belongs to the research and application field of perfusion materials, and in particular relates to a non-shrinkage high-strength perfusion mortar material and a preparation method thereof. Background technique [0002] The perfusion mortar slurry is composed of inorganic or organic cementitious materials as the base aggregate, compounded with specific graded fine aggregates and superplasticizers. The main application fields are mechanical equipment installation, structural reinforcement, and rapid repair and reinforcement. , special working conditions, construction and other fields, with very high hourly strength, high strength in the later stage, no shrinkage, 20-40Mpa compressive strength can be obtained in 2 hours, and high flexural strength. The maximum compressive strength of 28d can reach more than 100Mpa. At the same time, it has the advantages of large fluidity, self-compacting, no need for vibration, plastering, and fast construc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B24/10C04B103/22C04B111/70
Inventor 段峰涛王涛马静陈春雨窦伟续亮亮梁丽九郝语帅程政刚易聃别永辉
Owner 山西天昇测绘检测工程有限公司