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Preparation method of cement-based crack grouting material for roads and bridges

A cement-based technology for bridges, applied in bridge materials, bridges, bridge maintenance, etc., can solve the problems of limited applicability, poor strength performance, etc., achieve good process performance, improve compressive strength, and have a wide range of applications

Inactive Publication Date: 2020-09-11
合肥星道新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of concrete product crack repair material has good impermeability and service life, but its strength performance is poor, and its applicability is limited

Method used

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  • Preparation method of cement-based crack grouting material for roads and bridges
  • Preparation method of cement-based crack grouting material for roads and bridges
  • Preparation method of cement-based crack grouting material for roads and bridges

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment relates to a cement-based crack grout for road bridges, which is composed of the following raw materials in parts by weight:

[0041] 76 parts of composite cement;

[0042] 7 parts of compound emulsion;

[0043] 10 parts of pearlite;

[0044] Halloysite clay 8 parts;

[0045] 4 parts meerschaum;

[0046] 3 parts of epichlorohydrin graft copolymerization modified bone glue;

[0047]xonotlite 6 parts;

[0048] 1 part of composite water repellent;

[0049] 2 parts of composite coupling agent;

[0050] 3 parts compound rubber powder;

[0051] The selection and preparation of composite cement, composite emulsion, epichlorohydrin graft copolymerized modified bone glue, composite hydrophobic agent, composite coupling agent and composite rubber powder in this embodiment are shown in Table 1 below:

[0052] Table 1

[0053]

[0054] The preparation method of the crack grouting material in this embodiment is generally carried out according to the follo...

Embodiment 2

[0059] This embodiment relates to a cement-based crack grout for road bridges, which is composed of the following raw materials in parts by weight:

[0060] 84 parts of composite cement;

[0061] 8 parts of compound emulsion;

[0062] 12 parts of pearl sand;

[0063] Halloysite clay 10 parts;

[0064] 5 parts meerschaum;

[0065] 4 parts of epichlorohydrin graft copolymerization modified bone glue;

[0066] xonotlite 8 parts;

[0067] 1.5 parts of composite water repellent;

[0068] 2.5 parts of composite coupling agent;

[0069] 4 parts compound rubber powder;

[0070] The selection and preparation of composite cement, composite emulsion, epichlorohydrin graft copolymerized modified bone glue, composite hydrophobic agent, composite coupling agent and composite rubber powder in this embodiment are shown in Table 2 below:

[0071] Table 2

[0072]

[0073]

[0074] The preparation method of the crack grouting material in this embodiment is generally carried out a...

Embodiment 3

[0079] This embodiment relates to a cement-based crack grout for road bridges, which is composed of the following raw materials in parts by weight:

[0080] 92 parts of composite cement;

[0081] 9 parts of compound emulsion;

[0082] 15 parts of pearl sand;

[0083] Halloysite clay 12 parts;

[0084] 6 parts meerschaum;

[0085] 5 parts of epichlorohydrin graft copolymerization modified bone glue;

[0086] 10 parts of xonotlite;

[0087] 2 parts of composite water repellent;

[0088] 3 parts of composite coupling agent;

[0089] 5 parts of compound rubber powder;

[0090] The selection and preparation of composite cement, composite emulsion, epichlorohydrin graft copolymerized modified bone glue, composite water-repellent agent, composite coupling agent and composite rubber powder in this embodiment are shown in Table 3 below:

[0091] table 3

[0092]

[0093] The preparation method of the crack grouting material in this embodiment is generally carried out accord...

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Abstract

The invention discloses a preparation method of a cement-based crack grouting material for roads and bridges and relates to the technical field of bridge concrete crack grouting materials. The preparation method comprises the following steps: firstly, weighing the following raw materials: composite cement, composite emulsion, pearlite sand, halloysite clay, sepiolite fabric, epoxy chloropropane graft copolymerization modified bone glue, fibrous xonotlite, a composite water repellent, a composite coupling agent and composite rubber powder; grading and chopping the sepiolite fabric; crushing andactivating the halloysite clay and xonotlite; and mixing and stirring the materials. The crack grouting material disclosed by the invention has the advantages of excellent slurry performance, bondingperformance, process performance and construction negative temperature action resistance, strong environmental adaptability, high stress resistance and wide application prospect.

Description

technical field [0001] The invention relates to the technical field of grouting materials, in particular to a preparation method of cement-based crack grouting materials for roads and bridges. Background technique [0002] In recent years, the transportation industry has developed rapidly, and the total mileage of national highways has reached more than 4 million kilometers. With the increase of the service life of the highway and the increase of various complex geological environments and vehicle loads, the damage of highway bridges is becoming more and more serious. In order to extend the service life of highway bridges and ensure the normal traffic capacity of highways, we urgently need to find a comprehensive and excellent concrete crack repair material. There are many kinds of existing concrete crack repair materials, including glue injection and cement-based materials. However, due to the monopoly of raw materials, formulas and preparation technology by individual lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C08H1/00C04B14/46C04B24/14C04B24/28E01D22/00E01D101/24C04B111/72
CPCC04B14/4643C04B24/14C04B24/281C04B28/06C04B2111/0075C04B2111/72C04B2201/50C08H1/00E01D22/00E01D2101/24C04B7/02C04B24/2682C04B24/42C04B14/185C04B14/10C04B14/043C04B2103/65C04B24/40C04B24/24
Inventor 杨阳解正来董学武
Owner 合肥星道新材料科技有限公司
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