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Coral micropowder-based waterproof grouting material suitable for offshore island water-enriched stratum

A technology for water-rich formations and grouting materials, applied in the field of grouting materials, can solve the problems of poor water resistance and dispersion, low grouting filling rate, difficult coagulation and coagulation, etc. Filling rate, fast setting effect

Inactive Publication Date: 2019-07-05
CHINA ACAD OF BUILDING RES +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The aggregates used in ordinary grouting materials are usually sand or stone powder. This kind of grouting material has the problem of poor water dispersion resistance when applied in water-rich strata. Substantial increase, low grouting filling rate, water leakage and surface subsidence caused by insufficient filling after grouting

Method used

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  • Coral micropowder-based waterproof grouting material suitable for offshore island water-enriched stratum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Coral micropowder-based water-resistant grouting material 2117g suitable for the water-rich strata of offshore islands in this embodiment is made of the following quality raw materials: coral micropowder 941g, 52.5 grade ordinary Portland cement 400g, first grade fly ash 541g, silicon 118g of fine powder, 73g of methylolacrylamide water-resistant dispersant, 2g of silane impregnating agent, 35g of composite anti-corrosion and rust inhibitor, 7g of high-performance water reducing agent;

[0016] The fineness modulus of the coral micropowder is ≤1.0, and the mud content is ≤0.5; it comes from islands in the South China Sea;

[0017] The passing rate of the 325 mesh fineness of the first-class fly ash is 88%, which is collected from the flue gas after coal combustion in thermal power plants;

[0018] The silicon micropowder is SiO 2 Silica fume with a content ≥ 92%, the model is CABR-SF101, purchased from China Academy of Building Research;

[0019] The model of the meth...

Embodiment 2

[0025] Coral micropowder-based water-resistant grouting material 2117g suitable for offshore island water-rich formations of this embodiment is made of the following quality raw materials: coral micropowder 941g, 42.5 grade ordinary Portland cement 471g, first grade fly ash 447g, silicon Micropowder 82g, polyurethane water-resistant dispersant 88g, silane impregnating agent 1g, borate inorganic corrosion inhibitor 71g, high-performance water reducing agent 16g;

[0026] The fineness modulus of the coral micropowder is ≤1.0, and the mud content is ≤0.5; it comes from islands in the South China Sea;

[0027] The passing rate of the 325 mesh fineness of the first-class fly ash is 88%, which is collected from the flue gas after coal combustion in thermal power plants;

[0028] The silicon micropowder is SiO 2 Silica fume with a content ≥ 92%, the model is CABR-SF101, purchased from China Academy of Building Research;

[0029] The model of the polyurethane water-resistant dispers...

Embodiment 3

[0035] Coral micropowder-based water-resistant grouting material 2200g suitable for the water-rich strata of offshore islands in this embodiment is made of the following quality raw materials: coral micropowder 1200g, 42.5 grade ordinary Portland cement 500g, first grade fly ash 330g, silicon Micropowder 60g, polyurethane water-resistant dispersant 63g, silane impregnating agent 1g, borate inorganic corrosion inhibitor 40g, high-performance water reducing agent 6g;

[0036] The fineness modulus of the coral micropowder is ≤1.0, and the mud content is ≤0.5; it comes from islands in the South China Sea;

[0037] The passing rate of the 325 mesh fineness of the first-class fly ash is 88%, which is collected from the flue gas after coal combustion in thermal power plants;

[0038] The silicon micropowder is SiO 2 Silica fume with a content ≥ 92%, the model is CABR-SF101, purchased from China Academy of Building Research;

[0039] The model of the polyurethane water-resistant dis...

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Abstract

The invention discloses a coral micropowder-based waterproof grouting material suitable for an offshore island water-enriched stratum. The coral micropowder-based waterproof grouting material suitablefor the water-enriched stratum is prepared from, by mass, 30-60% of coral micropowder, 15-25% of common Portland cement, 13-30% of pulverized fuel ash, 2-6% of silicon micropowder, 2-5% of a water-resistance dispersing agent, 0.05-0.1% of a silane impregnant, 1-4% of a corrosion-prevention rust-resistance agent and the balance high-performance water-reducing agents. The coral micropowder-based waterproof grouting material has the advantages of being good in fluidity and water resistance and dispersibility, low in water absorption rate and bleeding rate and good in seepage resistance; the coral micropowder-based waterproof grouting material can resist corrosion and dispersion on the water-enriched stratum when used for grouting construction of the offshore island water-enriched stratum, and can be quickly coagulated, and construction operation is facilitated.

Description

technical field [0001] The invention belongs to the technical field of grouting materials, and in particular relates to a coral micropowder-based water-resistant grouting material suitable for water-rich formations in offshore islands. Background technique [0002] The aggregates used in ordinary grouting materials are usually sand or stone powder. This kind of grouting material has the problem of poor water dispersion resistance when applied in water-rich strata. Substantial increase, the filling rate of grouting is low, and the problem of water leakage and surface subsidence caused by insufficient filling after grouting is serious. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a coral micropowder-based water-resistant grouting material suitable for the water-rich strata of offshore islands, which has good fluidity and good water dispersion resistance. , low water absorption, low bleeding rate and good anti-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/27C04B111/70
CPCC04B28/04C04B2111/00293C04B2111/275C04B2111/70C04B2201/50C04B18/0427C04B18/08C04B18/146C04B24/124C04B24/42C04B24/122C04B22/085C04B2103/302C04B24/282C04B22/0013
Inventor 宋普涛朱先发王晶周永祥王宁宁王祖琦夏京亮王伟高超贺阳周郅人
Owner CHINA ACAD OF BUILDING RES
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