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Preparation method for cement-based crack grouting material for road bridges

A bridge-based, cement-based technology, applied in the field of grouting, can solve problems such as poor strength performance and application limitations, and achieve the effects of improving compressive strength, good process performance, and enhancing interface bonding strength.

Inactive Publication Date: 2019-01-29
合肥慧林建材有限公司
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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 for cement-based crack grouting material for road bridges
  • Preparation method for cement-based crack grouting material for road bridges
  • Preparation method for cement-based crack grouting material for road 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 for cement-based crack grouting material for road bridges, and relates to the technical field of concrete crack-grouting materials of bridges. The preparation method comprises the following steps: first weighing the following raw materials: composite cement, composite emulsion, pearlite sand, halloysite clay, sepiolite velvet, epichlorohydrin grafted copolymerized modified bone glue, fibrous xonotlite, a composite water repellent, a composite coupling agent and a composite latex powder; conducting graded chopping on the sepiolite velvet; conductingpulverization and activation on the halloysite clay and the xonotlite; and mixing the materials. The crack grouting slurry material of the invention has excellent slurry performance, bonding performance, process performance and resistance to construction negative temperature, has strong environmental adaptability and high stress resistance, and has broad application prospects.

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): C04B28/06C04B111/70C04B111/72
CPCC04B28/06C04B2111/70C04B2111/72C04B2201/50C04B7/12C04B24/42C04B24/2682C04B14/06C04B14/102C04B14/4643C04B24/14C04B14/043C04B2103/65C04B24/40C04B24/24C04B2103/0045
Inventor 刘伍
Owner 合肥慧林建材有限公司
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