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Pavement/bridge deck concrete fast mending material and application thereof

A technology for repairing materials and concrete, applied in the field of building materials, can solve the problems of short service life, difficult repairing of repairing materials, long curing time, etc., and achieve the effects of high early strength, improved flexibility, and reduced water addition.

Inactive Publication Date: 2015-09-23
HENAN HUINENG ROAD & BRIDGE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a quick repair material for pavement / bridge deck concrete and its application, which solves the problems of existing repair materials such as difficulty in repairing, long maintenance time, and short service life.

Method used

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  • Pavement/bridge deck concrete fast mending material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of pavement / bridge deck concrete rapid repair material, by weight, comprises 20 parts of sulphoaluminate cement, 9 parts of 52.5 ordinary Portland cement, 7 parts of ethylene and vinyl acetate polymer rubber powder, 0.5 part of aluminum sulfate, 1 part of water glass, 0.1 part of organic silicon, 1 part of gypsum, 3 parts of slag, 0.1 part of silicon micropowder, 0.5 part of HPCA high-performance concrete expansion agent, 3 parts of fly ash, 20 parts of washed and dried sand, 25 parts of corundum, steel 1.5 parts of fiber, 1.5 parts of PP fiber, 2 parts of polycarboxylate superplasticizer, 0.3 part of boric acid, 0.1 part of sodium gluconate and 0.2 part of lithium carbonate.

[0029] The aspect ratio of the steel fiber is 45-65, and the section diameter is 0.40-0.65mm.

[0030] Mix all kinds of raw materials evenly to get the repair material.

Embodiment 2

[0032] A kind of pavement / bridge deck concrete rapid repair material, by weight, comprises 25 parts of sulfoaluminate cement, 10 parts of 52.5 ordinary portland cement, 10 parts of ethylene and vinyl acetate polymer rubber powder, 1 part of aluminum sulfate, 1.5 parts of water glass, 0.6 parts of organic silicon, 1.5 parts of gypsum, 2.5 parts of slag, 0.3 parts of silicon powder, 1 part of HPCA high-performance concrete expansion agent, 4 parts of fly ash, 25 parts of washed and dried sand, 28 parts of emery, steel 1 part of fiber, 3 parts of PP fiber, 1 part of polycarboxylate superplasticizer, 0.6 part of boric acid, 0.2 part of sodium gluconate and 0.8 part of lithium carbonate.

[0033] The aspect ratio of the steel fiber is 45-65, and the section diameter is 0.40-0.65mm.

[0034] Mix all kinds of raw materials evenly to get the repair material.

Embodiment 3

[0036] A kind of pavement / bridge deck concrete rapid repair material, by weight, comprises 30 parts of sulphoaluminate cement, 8 parts of 52.5 ordinary Portland cement, 5 parts of ethylene and vinyl acetate polymer rubber powder, 1.5 parts of aluminum sulfate, 2 parts of water glass, 1 part of organic silicon, 2 parts of gypsum, 2 parts of slag, 0.5 parts of silicon powder, 0.8 parts of HPCA high-performance concrete expansion agent, 5 parts of fly ash, 30 parts of washed and dried sand, 30 parts of emery, steel 2 parts of fiber, 3 parts of PP fiber, 3 parts of polycarboxylate superplasticizer, 0.8 part of boric acid, 0.3 part of sodium gluconate and 1 part of lithium carbonate.

[0037] The aspect ratio of the steel fiber is 45-65, and the section diameter is 0.40-0.65mm.

[0038] Mix all kinds of raw materials evenly to get the repair material.

[0039] The properties of the repairing materials prepared in Examples 1-3 were measured, as shown in the table below.

[0040] ...

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Abstract

The invention relates to a pavement / bridge deck concrete fast mending material and application thereof. The mending material comprises the following raw materials by weight: 20 to 30 parts of sulphoaluminate cement, 8 to 10 parts of ordinary Portland cement 52.5, 5 to 10 parts of polymer powder, 0.5 to 1.5 parts of aluminium sulphate, 1 to 2 parts of water glass, 0.1 to 1 part of organic silicon, 1 to 2 parts of gypsum, 2 to 3 parts of slag, 0.1 to 0.5 part of silica micropowder, 0.5 to 1 part of an HPCA high-performance concrete expansive material, 3 to 5 parts of fly ash, 20 to 30 parts of washed-out and dried sand, 25 to 30 parts of corundum, 3 to 5 parts of composite fiber, 1 to 3 parts of a polycarboxylate superplasticizer, 0.1 to 0.5 part of boric acid, 0.1 to 0.3 part of sodium gluconate, and 0.2 to 1 part of lithium carbonate. The mending material is high in early strength, and has the advantages that traffic can be opened fast only 1 to 2 hours after mending is completed, so as to reduce traffic jams, and effectively reduce the generation of traffic accidents.

Description

technical field [0001] The invention relates to a quick repair material for pavement / bridge deck concrete and its application, which belongs to building materials. Background technique [0002] With the rapid development of my country's national economy, the construction of various roads, bridges, and municipal projects is rapid. Among them, the proportion of cement concrete pavement increased significantly. Under the repeated action of loads and the continuous influence of factors such as freeze-thaw cycle, salt freezing, carbonization, etc., as well as the combined effects of many factors such as design, construction, and maintenance, the cement concrete pavement will inevitably deteriorate during use. Various damages, such as cracks, potholes, cracks, etc., will affect the speed and quality of traffic and cause traffic problems. In order to minimize traffic problems, repairs to damaged pavement must be carried out in a timely manner. [0003] There are serious potholes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
Inventor 黄新建
Owner HENAN HUINENG ROAD & BRIDGE TECH CO LTD
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