Hill sand inorganic grouting material, preparation and construction method thereof

Abstract

The invention discloses a hill sand inorganic grouting material, a preparation method and a construction method thereof. The sand in the hill sand inorganic grouting material is grinding hill sand, the cementing material is mixture of cement and rock phosphate, the admixture is mixture of expansion agent and water reducing agent. The hill sand inorganic grouting dry material is formed by 1 weightpart of grinding hill sand, 1 weight part of cement, 0.02-0.04 weight part of rock phosphate, 0.07-0.10 weight part of expansion agent, 0.007-0.010 weight part of water reducing agent. In the construction site, the hill sand inorganic grouting material is prepared by firstly pouring 13-15% of water accounting for the total weight of the grouting dry material into a mixing container, then slowly adding the hill sand inorganic grouting dry material into the mixing container, uniformly mixing the materials after fully stirred. After a base plane cleaning, a template is installed, then the hill sand inorganic grouting material is injected into the structure without vibration. The method of the invention solves the technology problems of intolerant high temperature, weak durability, weak flameresistance of the cementing material and complicated construction technology in the prior art.

Description

technical field [0001] The invention relates to a building grouting material, a preparation method and a construction method thereof. Background technique [0002] With the development of urban construction, more and more structural designers encounter the reinforcement design of concrete structures. Usually, the reinforced structure is a secondary stress structure, and there are strain lag and stress advance problems in the old and new parts. Before reinforcement, the component is already under stress due to its own weight and other loads. After reinforcement, the additional part is not stressed. It is only when the load continues to increase that the additional part is gradually stressed. The old and new parts rely on the joint surface. Under the action of the reinforced material, the effective transmission of shear force and work together, the stress level of the added part lags behind the original component. The load continues to increase, the original structure reaches...

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Problems solved by technology

[0005] The invention provides a kind of mountain sand inorganic grouting material and its preparation method and construction method. It is necessary to solve the technical problems of existing cementing materials such as low temperature resistance, poor durability, poor fire resistance, and complicated construction technology; and solve the problem of using mountain sand to prepare inorganic grouting. material technical issues

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