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Sleeve grouting material mixed with iron filings and fine sand, its preparation method and supporting strength testing method

ActiveCN111908874BOutput compressive strengthImprove compactnessMaterial magnetic variablesFiberCrack resistance
Sleeve grouting material mixed with iron filings fine sand, its preparation method and supporting strength testing method, this application mixes iron filings fine sand sleeve grouting material, and the sleeve grouting material is measured in parts by weight and includes the following components: cement 100 parts, 50-55 parts of modified mineral powder, 2 parts of iron filings fine sand slurry, 3 parts of water reducer, 3 parts of retarder, 2 parts of defoamer, 1 part of expansion agent, 20-25 parts of water; The invention provides sleeve grouting material mixed with iron filings fine sand, its preparation method and supporting strength detection method. This application uses processed iron filings fine sand to replace the aggregate in the original sleeve grouting material. Therefore, the compactness and strength of the sleeve grouting material are improved; since the iron filings are also equivalent to fibers, the crack resistance of the sleeve grouting material is improved. Therefore, the use of iron filings can greatly improve the strength and crack resistance of the slurry. Since the application is mainly prepared with pig iron filings, the cost is low, and the prepared sleeve grouting material is tested for compressive strength to ensure product reliability.
Owner:JINLING INST OF TECH
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