Expansion controllable ultra high-early strength support saddle mortar material

A technology of support mortar and expansion agent, which is applied in the field of expansion-controllable super-early-strength support mortar material and its preparation, can solve the problems of no patent documents, etc., achieve excellent filling performance, improve crack resistance and impermeability Sexuality, the effect of improving work performance

CN101486545AActive Publication Date: 2009-07-22JIANGSU SOBUTE NEW MATERIALS

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: JIANGSU SOBUTE NEW MATERIALS
Publication Date: 2009-07-22

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Abstract

The invention relates to an expansion-controllable super early strength saddle sand pulp material which is prepared by the components with the weight percentage as follows: 36 to 50 percent of quick hardening cement, 0 to 10 percent of expansion admixture, 42 to 54 percent of quartz sand of 20 meshes to 100 meshes, 0.15 to 0.9 percent of retarder, 0.1 to 0.8 percent of early strength admixture, 0.3 to 0.6 percent of water reducing agent, 0.06 to 0.26 percent of foam killer, as well as 0.01 to 0.08 percent of fiber. The invention has the advantages of good liquidity, high early strength, good expansion filling performance, no reversed shrinking of later strength, convenient use and the like, is suitable for the construction under various environment conditions (including low and subzero temperature as well as high temperature conditions), can be used for quickly repairing the foundation grouting, concrete structures and pavements of various devices, and is suitable for the gravity grouting of the prefabricated bridge basin-type rubber saddle of a passenger dedicated line in particular.

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Description

technical field

[0001] The present invention relates to an expansion-controllable super-early-strength bearing mortar material and a preparation method thereof, in particular to an expansion-type super-early-strength mortar material for the installation of high-speed railway bridge basin-type rubber bearings and cylindrical steel bearings. Strong bearing mortar, with improved formula, can be used for large-scale equipment installation and repair and road surface repair. Background technique

[0002] At present, China's economic construction is developing rapidly at an unprecedented high speed, and infrastructure construction is developing in a magnificent manner. Therefore, higher requirements are put forward for improving the service life of infrastructure projects, especially high-speed railways and railway passenger dedicated lines. In the bridge construction design of railway passenger dedicated line, in order to improve its service life, the traditional box girder erect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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