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Carbon fiber reinforced concrete for microwave deicing of road and preparation method of carbon fiber reinforced concrete

A technology for reinforcing concrete and carbon fiber, which is applied in the fields of building materials and carbon fiber, can solve the problems of low efficiency of microwave deicing, achieve the effects of improving microwave deicing efficiency, reducing impact, and improving strength

Inactive Publication Date: 2017-09-08
AIR FORCE UNIV PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the shortcomings of low microwave deicing efficiency in the prior art, the present invention proposes a carbon fiber reinforced concrete for microwave deicing of roads and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment is a carbon fiber reinforced concrete suitable for road microwave deicing. per 1m 3 The carbon fiber reinforced concrete suitable for road microwave deicing contains 330.00kg cement, 135.30kg water, 1437.85kg stone, 562.55kg sand, 3.33kg water reducer and 2.67kg carbon fiber; the stone is divided into big stone, medium stone and small stone Three kinds, among them, the large stone is 575.14kg, the medium stone is 575.14kg, and the small stone is 287.57kg.

[0028] The cement is P.O 42.5 ordinary Portland cement; the sand is medium sand, the fineness modulus is 2.8, and the bulk density is 1.45g / cm 3 , the apparent density is 2.58g / cm 3 ; The gravel is limestone, with a bulk density of 1.68g / cm 3 , the apparent density is 2.71g / cm 3 , The particle size range of large stones is 20-40mm, the particle size range of medium stones is 10-20mm, and the particle size range of small stones is 5-10mm.

[0029] The carbon fiber is a pitch-based chopped carbon f...

Embodiment 2

[0038] This embodiment is a carbon fiber reinforced concrete suitable for road microwave deicing. , per 1m 3 The carbon fiber reinforced concrete suitable for road microwave deicing contains 348.00kg cement, 142.68kg water, 1412.52kg stone, 552.63kg sand, 3.48kg water reducer and 3.56kg carbon fiber; the stone is divided into big stone, medium stone and There are three types of small stones, among which, the weight of large stones is 565.01 kg, the weight of medium stones is 565.01 kg, and the weight of small stones is 282.50 kg.

[0039] The cement is P.O 42.5 ordinary Portland cement; the sand is medium sand, the fineness modulus is 2.8, and the bulk density is 1.45g / cm 3 , the apparent density is 2.58g / cm 3 ; The gravel is limestone, with a bulk density of 1.68g / cm 3 , the apparent density is 2.71g / cm 3 , The particle size range of large stones is 20-40mm, the particle size range of medium stones is 10-20mm, and the particle size range of small stones is 5-10mm.

[004...

Embodiment 3

[0044] This embodiment is a carbon fiber reinforced concrete suitable for road microwave deicing. per 1m 3 The carbon fiber reinforced concrete suitable for road microwave deicing contains 355.00kg cement, 145.55kg water, 1402.67kg stone, 548.78kg sand, 3.55kg water reducing agent and 4.45kg carbon fiber; the stone is divided into big stone, medium stone There are three kinds of small stones, among which, the large stone is 561.07kg, the medium stone is 561.07kg, and the small stone is 280.53kg.

[0045] The cement is P.O 42.5 ordinary Portland cement; the sand is medium sand, the fineness modulus is 2.8, and the bulk density is 1.45g / cm 3 , the apparent density is 2.58g / cm 3 ; The gravel is limestone, with a bulk density of 1.68g / cm 3 , the apparent density is 2.71g / cm 3 , The particle size range of large stones is 20-40mm, the particle size range of medium stones is 10-20mm, and the particle size range of small stones is 5-10mm.

[0046] The carbon fiber is a pitch-base...

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Abstract

The invention discloses carbon fiber reinforced concrete for microwave deicing of a road and a preparation method of the carbon fiber reinforced concrete. The concrete comprises cement, water, gravel, sand, carbon fibers and a polycarboxylate superplasticizer. The preparation method comprises the following steps: pouring cement powder and sand into a stirrer for uniformly stirring, and uniformly dispersing the carbon fibers in a mixed solution of the polycarboxylate superplasticizer; pouring the uniformly dispersed mixed solution and stones into the stirrer for stirring together until a uniform concrete mixture appears; and pouring, compacting and molding. According to the carbon fiber reinforced concrete disclosed by the invention, by utilizing the extremely strong wave-absorbing and heating effects of the carbon fibers on microwaves, the carbon fibers are doped into the concrete, so that the wave-absorbing temperature rising capability of the concrete can be greatly improved. The carbon fiber reinforced concrete has the characteristics of high breaking strength, excellent wave-absorbing performance and high temperature rising rate. When the concrete is used for paving a concrete pavement, the ice layer joint of an iced road can be rapidly molten under the microwave action, so that high-efficiency and rapid microwave deicing of the road is realized, and the application prospects are wide.

Description

technical field [0001] The invention relates to the field of building materials and the application field of carbon fiber, in particular to a carbon fiber reinforced concrete for road microwave deicing and a preparation method thereof. Background technique [0002] my country has a vast territory and a wide range of cold regions. The winter period lasts for a long time, and the temperature is negative all year round, resulting in ice on the road surface, which greatly reduces the friction coefficient of the road surface. It is difficult for vehicles to drive and brake, and traffic accidents are prone to occur. According to statistics, traffic safety accidents caused by road ice and snow in winter account for 35% of the total accidents. At the same time, the speed of vehicles on icy roads drops by 2 / 3, seriously reducing work efficiency. In 2008, several provinces in southern my country encountered rare and continuous low-temperature rain and snow, and the direct economic los...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/38
CPCC04B28/04C04B2111/00258C04B2111/0075C04B2201/50C04B2201/52C04B14/06C04B14/28C04B14/386C04B2103/302
Inventor 陆松许金余白二雷刘俊良王谕贤任韦波聂良学李启帆娄传鑫
Owner AIR FORCE UNIV PLA
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