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High-strength permeable fiber concrete and preparation method thereof

A technology of permeable concrete and high-strength fiber, which is applied in the field of road paving materials and high-strength fiber permeable concrete. It can solve the problems of expansion cracking and permeable concrete not being able to adapt to the temperature, so as to ensure durability, improve freeze-thaw resistance, and improve project quality. Effect

Inactive Publication Date: 2013-07-17
BEIJING CHUNJUEXIAO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing permeable concrete technology is sand-free concrete technology, that is to say, sand is removed from the three basic raw materials of concrete, namely, cement, gravel (aggregate), and sand, so that the pre-mixed concrete has pores and achieves a water-permeable effect. But because of this, the pores between the gravel aggregates will lead to changes in the concrete structure, making the pervious concrete unable to adapt to the place where the temperature is low, the water is easy to freeze, and freeze-thaw occurs, which will cause expansion cracking and other concrete pavement quality problems

Method used

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  • High-strength permeable fiber concrete and preparation method thereof
  • High-strength permeable fiber concrete and preparation method thereof

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Embodiment 1

[0032] A kind of high-strength fiber permeable concrete, including cement, admixture, water, stone and high-strength engineering fiber, wherein the proportioning of each raw material (by mass Kg / cubic):

[0033] High-strength fiber: cement: gravel: admixture: water = 15:410:1520:10:120.

Embodiment 2

[0035] A kind of high-strength fiber permeable concrete, comprising cement, admixture, water, stone, high-strength engineering fiber and grinding aid, wherein the proportioning of each raw material (by mass Kg / cubic):

[0036] High-strength fiber: grinding aid: cement: gravel: admixture: water=15:1.5:410:1520:10:120.

[0037] The actual preparation steps of above-mentioned embodiment concrete are:

[0038] 1. Stir

[0039] High-strength fiber permeable concrete cannot be mixed manually, and ordinary concrete mixing machines are used for mixing. When mixing, the materials are put into the mixer according to the specified ratio of materials and the order of feeding, and the specified amount of water is added 2 to 3 times to continue stirring for about 1.5 to 2 minutes. . Depending on the uniformity of the stirring, the time of mechanical stirring can be extended appropriately, but it is not suitable to stir for too long.

[0040] 2. Paving and casting

[0041] The pouring is...

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Abstract

The invention discloses a high-strength permeable fiber concrete. The high-strength permeable fiber concrete comprises cement, an additive, water, cobblestones and high-strength engineering fibers, the weight of the high-strength engineering fibers is above 3% of the weight of cement and is less than 0.8% of the total weight of the concrete. The invention also discloses a preparation method of the high-strength permeable fiber concrete. The high-strength permeable fiber concrete is obtained through organically combining common permeable concrete with permeable fiber concrete, and is a novel antifreeze permeable concrete having a high strength and a freeze-thaw resistance. The high-strength permeable fiber concrete can substantially improve the construction quality to substantially reduce the road maintenance and repairing rates in northern cold regions, so the durability and the safety of a pavement are guaranteed.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to road paving materials, especially a high-strength fiber permeable concrete, and a preparation method thereof. Background technique [0002] The existing permeable concrete technology is sand-free concrete technology, that is to say, sand is removed from the three basic raw materials of concrete, namely, cement, gravel (aggregate), and sand, so that the pre-mixed concrete has pores and achieves a water-permeable effect. But because of this, the pores between the gravel aggregates will lead to changes in the concrete structure, making the pervious concrete unable to adapt to the place where the temperature is low, the water is easy to freeze, and freeze-thaw occurs, which will cause expansion cracking and other concrete pavement quality problems. Contents of the invention [0003] Aiming at the shortcomings, the present invention proposes a high-strength fiber permeable...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B16/06
Inventor 陈中
Owner BEIJING CHUNJUEXIAO TECH
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