Epoxy resin glue sand used for rapid repairing and microwave curing method thereof

A technology of epoxy resin glue and epoxy resin, which is applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of single aggregate composition and long time, and achieve improved fluidity and stable performance , Improve the effect of compressive strength

Inactive Publication Date: 2016-01-13
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, the aggregate composition in epoxy resin mortar is relatively simple, and the main composition is only medium and coarse sand.
And when repairing, epoxy resin mortar is generally cured and formed under natural conditions, which takes a long time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) A kind of epoxy resin mortar based on microwave radiation curing of the present invention is to take by weighing 120g bisphenol A type epoxy resin E51, 60g curing agent polyamide V140, 18g diluent propylene oxide butyl ether 501A, 20 g of SY-A type chopped polypropylene fiber with a length of about 6 mm was placed in a three-necked flask, and mechanically stirred at 25° C. for 30 min to obtain component A, which was set aside.

[0024] (2) Weigh 1000g of natural river sand and 110g of fly ash, pour them into a stirring pot and stir evenly to obtain component B, which is set aside.

[0025] (3) Weigh 110g of component A, pour it into 1110g of component B, stir well, and mix evenly.

[0026] (4) Add the uniformly stirred mixture into a polytetrafluoroethylene mold with an inner size of 40mm*40mm*100mm, compact and scrape it flat. Then put it into an industrial microwave oven in the laboratory, and continuously cure it for 20 minutes under the irradiation power of 330...

Embodiment 2

[0028] (1) a kind of epoxy resin mortar based on microwave radiation curing of the present invention is to take by weighing 120g bisphenol A type epoxy resin E51, 60g curing agent polyamide V140, 15g diluent propylene oxide butyl ether 501A, 15 g of SY-A type chopped polypropylene fibers with a length of about 6 mm were placed in a three-necked flask, and mechanically stirred at 25° C. for 30 min to obtain component A, which was set aside.

[0029] (2) Weigh 650g of natural river sand, 400g of machine-made sand and 50g of fly ash, pour them into a stirring pot and stir evenly to obtain component B, which is set aside.

[0030] (3) Weigh 110g of component A, pour it into 1110g of component B, stir well, and mix evenly.

[0031] (4) Add the uniformly stirred mixture into a polytetrafluoroethylene mold with an inner size of 40mm*40mm*100mm, compact and scrape it flat. Then put it into an industrial microwave oven in the laboratory, and continuously cure it for 28 minutes under t...

Embodiment 3

[0033] (1) a kind of epoxy resin mortar based on microwave radiation curing of the present invention is to take by weighing 120g bisphenol A type epoxy resin E51, 60g curing agent polyamide V140, 15g diluent propylene oxide butyl ether 501A, 15 g of SY-A type chopped polypropylene fibers with a length of about 6 mm were placed in a three-necked flask, and mechanically stirred at 25° C. for 30 min to obtain component A, which was set aside.

[0034] (2) Weigh 950g of natural river sand and 150g of fly ash, pour them into a stirring pot and stir evenly to obtain component B, which is set aside.

[0035] (3) Weigh 110g of component A, pour it into 1110g of component B, stir well, and mix evenly.

[0036] (4) Add the uniformly stirred mixture into a polytetrafluoroethylene mold with an inner size of 40mm*40mm*100mm, compact and scrape it flat. Then put it into an industrial microwave oven in the laboratory, and continuously cure it for 15 minutes under the irradiation power of 38...

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PUM

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Abstract

The invention relates to a novel microwave radiation cured epoxy resin glue sand, especially relates to an epoxy resin glue sand composed of epoxy resin, a curing agent, a diluent, flyash, medium-coarse sand, and organic chopped fiber, and a microwave curing method of the epoxy resin glue sand. The epoxy resin glue sand comprises, by weight, 5 to 15wt% of epoxy resin, 2.5 to 7.5wt% of the curing agent, 0.3 to 3wt% of the diluents, 2 to 30wt% of flyash, 50 to 90wt% of medium-coarse sand, and 0.5 to 5wt% of organic chopped fiber. Early-stage operation time of the epoxy resin glue sand mixture is long; rapid curing molding can be realized under appropriate microwave radiation conditions, curing uniformity is excellent, mechanical properties are excellent, adhesive properties with common cement concrete interfaces are excellent, performance is stable, and the epoxy resin glue sand is an ideal rapid repairing material.

Description

technical field [0001] The invention designs a novel microwave radiation curing epoxy resin mortar, which is suitable for emergency repair of concrete pavement. Background technique [0002] In recent years, concrete pavement has been widely used due to its advantages of high strength, good stability and good durability. However, due to many problems in road design, construction and use, the damage of concrete roads is very serious, causing huge national economic and personal safety losses. Therefore, it is a major problem to be solved urgently to select suitable repair materials and use reasonable methods to effectively reinforce and quickly repair damaged concrete pavement. Traditional repair materials for concrete pavement, such as ordinary Portland concrete or mortar and other inorganic repair materials, have disadvantages such as high brittleness, long solidification time, low flexural strength and low bonding strength with the original pavement, and their application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/14C04B18/08C04B14/06C04B16/06
CPCY02W30/91
Inventor 王小群张栩
Owner BEIHANG UNIV
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