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Preparation method of high-performance grouting material
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A grouting material, high-performance technology, applied in the field of preparation of high-performance grouting material, can solve the problems of unstable performance, performance just up to the standard, etc., and achieve the effect of convenient operation, high cohesion, and simple preparation method
Inactive Publication Date: 2019-11-19
陈磊
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is that the performance of the existing special grouting material for steel bar sleeve connection is only just up to the standard, and the performance is unstable. Only just reached the standard, the problem of unstable performance
Method used
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Embodiment 1
[0025] The preparation method of high-performance grouting material of the present invention may further comprise the steps:
[0026] S1. Compound cement: obtain the following cements in parts by weight: 30-40 parts of ordinary Portland cement, 30-40 parts of sulphoaluminate cement, 20-30 parts of superfine cement, and 30-40 parts of ordinary silicic acid Salt cement, 30-40 parts of sulphoaluminate cement, 20-30 parts of ultra-fine cement for compounding;
[0027] S2. Preparation of composite expansion agent: a composite expansion agent made by mixing HEA anti-crack and waterproof expansion agent and azodicarbonamide;
[0029] S4, mix the composite cement obtained in step S1, the composite expansion agent ob...
Embodiment 2
[0034] Based on Example 1, the raw materials of the following parts by weight are obtained in step S3: 30-40 parts of microsilica powder, 20-40 parts of microsilica powder, 20-25 parts of light calcium carbonate, 10-15 parts of latex powder, 8-12 parts Parts of cellulose ether, 3-5 parts of starch ether, 3-8 parts of alumina, 10-20 parts of fly ash, 10-15 parts of hard clay, 3-10 parts of activated carbon, 1-10 parts of early-strength powder Aqua, 8-15 parts of nano calcium silicatehydrate.
Embodiment 3
[0036] Based on the above-mentioned embodiment, the raw materials of the following parts by weight are obtained in step S3: 35-40 parts of microsilica powder, 38-40 parts of microsilica powder, 23-25 parts of light calcium carbonate, 13-15 parts of latex powder, 8-10 parts Parts of cellulose ether, 3-5 parts of starch ether, 3-6 parts of alumina, 15-20 parts of fly ash, 13-15 parts of hard clay, 8-10 parts of activated carbon, 8-10 parts of early strength powder Aqua, 10-15 parts of nano calcium silicatehydrate.
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Abstract
The invention discloses a preparation method of a high-performance grouting material. The preparation method includes the following steps: compounding cement; preparing a composite expansion agent; obtaining the following raw materials: silica micropowder, micro siliconpowder, light calciumcarbonate, latex powder, celluloseether, starchether, aluminum oxide, fly ash, hard clay, activated carbon, an early strength type powder water reducing agent, and nano hydrated calciumsilicate; mixing the compound cement, the composite expansion agent and all the raw materials, putting the mixture intoa stirring tank for stirring for 30-40 min to obtain dry powder; taking a part of the dry powder, adding water for stirring to prepare a wet material, and detecting the performance of the wet material; and according to a performance detection result of the wet material, obtaining additives to adjust the dry powder. The grouting material prepared by the method has the characteristics of high strength, high adhesion, micro-expansion and no shrinkage, can form firm connection between steel bars and the steel bars and between the steel bars and sleeves when being poured into the steel bar sleeves, and has good durability.
Description
technical field [0001] The invention relates to a preparation method, in particular to a preparation method of high-performance grouting material. Background technique [0002] In recent years, prefabricated concrete structures (referred to as PC structures) have developed to a certain extent in my country. Most of the components of PC structures are prefabricated in factories and assembled on site. Compared with cast-in-place concrete structures, they are improving the construction quality At the same time, it can save resources and energy, reduce pollution and carbon emissions, and reduce on-site construction personnel, etc., and has broad development prospects in the future urban construction field. [0003] The performance and quality of prefabricated component reinforcement connections are an important guarantee for the integrity and safety of building structures. One of the main categories of PC structures - the complete set of technology for high-rise prefabricated fr...
Claims
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Application Information
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