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High-strength modified synthetic fiber reinforced pervious concrete and preparation method thereof

A permeable concrete and synthetic fiber technology, applied in the field of materials, can solve the problems of low content and insufficient reinforcement effect of ordinary synthetic fibers, and achieve the effect of improving the reinforcement efficiency

Pending Publication Date: 2020-06-12
殷石
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Synthetic fibers are usually used to strengthen pervious concrete, but due to the low content of cement and reinforcing materials in pervious concrete, the reinforcing effect of ordinary synthetic fibers is not obvious enough

Method used

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  • High-strength modified synthetic fiber reinforced pervious concrete and preparation method thereof
  • High-strength modified synthetic fiber reinforced pervious concrete and preparation method thereof
  • High-strength modified synthetic fiber reinforced pervious concrete and preparation method thereof

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Embodiment Construction

[0032] Preferred embodiments of the present invention are described in detail below.

[0033] A high-strength modified synthetic fiber-reinforced permeable concrete is prepared by first mixing modifiers and synthetic resins as listed in Table 1, performing melt drawing or melt spinning, and performing secondary surface modification on some groups. High-strength modified synthetic fibers; then the high-strength modified synthetic fibers are added to the permeable concrete and fully stirred until uniform; finally, the concrete is poured and cured for 28 days.

[0034] Table 1 shows the specimen information of high-strength modified synthetic fiber reinforced permeable concrete, in which control group 1 is concrete without fiber, control group 2 is concrete with low-strength unmodified synthetic fiber, and control group 3 is high-strength unmodified concrete. Concrete with modified synthetic fibers. Control group 4 and control group 5 were the groups whose fiber consumption was ...

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Abstract

The invention discloses high-strength modified synthetic fiber reinforced pervious concrete. High-strength modified synthetic fibers are doped into the pervious concrete; the content of the high-strength modified synthetic fibers in the pervious concrete is 2kg / m < 3 >-120kg / m < 3 >, the high-strength modified synthetic fiber is obtained by modifying synthetic resin or synthetic fiber with a modifier, and the pervious concrete is concrete with a continuous void structure, which is formed by mutually bonding low-grade or stepless aggregate and a cement-based cementing material coated on the surface of the low-grade or stepless aggregate, and hydrating and hardening the low-grade or stepless aggregate. Polar groups such as Si, Si-O,-OH and-COOH are grafted to the surface of the synthetic fiber through the modifier, the groups act and react with a reinforcing material, a cementing material and an additive in the pervious concrete, and the strength and the dispersity of the fiber and the binding power of the fiber and the concrete are greatly improved.

Description

technical field [0001] The invention belongs to the field of materials and relates to concrete materials, in particular to a high-strength modified synthetic fiber reinforced permeable concrete and a preparation method thereof. Background technique [0002] Permeable concrete is a concrete with a continuous void structure formed by coarse aggregate and cement-based binder wrapped on its surface, bonded to each other, and formed after hydration and hardening. This kind of concrete is often used in roads such as sidewalks, roadways, and square walkways. Due to the existence of continuous gaps, rainwater will flow into the ground through permeable concrete after rain, and even into underground storage tanks, which greatly saves water resources. In addition, the road will not accumulate water, which also reduces the risk of pedestrians and vehicles slipping on the road. Permeable concrete can also be used to make concrete flower pots, river slopes, planting walls, etc. Due to i...

Claims

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Application Information

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IPC IPC(8): C04B28/02C04B38/00C04B16/06D01F6/46D01F6/50D01F6/94D01F11/06D01F11/08D01F8/06D01F8/10D01F1/10C04B111/40
CPCC04B16/0616C04B16/0633C04B16/0641C04B16/0675C04B28/02C04B2111/40C04B2201/50D01F1/10D01F6/46D01F6/50D01F6/94D01F8/06D01F8/10D01F11/06D01F11/08C04B14/02C04B2103/0068C04B38/0038C04B24/42
Inventor 殷石
Owner 殷石
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