A kind of polymer fiber concrete rapid repair material and its preparation and construction method

A fiber-reinforced concrete and repair material technology, applied in road repair, road, construction, etc., can solve the problems of long curing time, low strength, poor durability, etc., and achieve short curing time, good low temperature resistance and good adhesion Effect

Active Publication Date: 2019-05-24
TIANJIN BAISITE NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose a quick repair material for polymer fiber concrete and its preparation and construction method to solve the problem of unreasonable design of the existing cement concrete formula, high cost, poor repair quality, and after the pit is repaired Low strength, poor durability, waste a lot of raw materials, increase the engineering volume of the construction unit, and cause huge economic losses; easily affected by harsh environments such as low temperature, rain and snow; the implementation process is complicated, the maintenance time is long, and the service life is short. Poor stability and other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] S1: Use a standard sieve to take out the dry fine aggregate of 13 mm, and keep it warm at 80 degrees Celsius for later use;

[0037] S2: Weigh 9 parts of bauxite, 6 parts of sodium carbonate, 10 parts of alum stone, 5 parts of water reducing agent, 15 parts of ethanol, 11 parts of silicic acid compound, 60 parts of cement, 10 parts of fiber, and 5 parts of viscosity agent, and mix Stir evenly, 150 revolutions per minute, and the stirring time is 30 minutes, to obtain the alumina cement mixture;

[0038] S3: Weigh 7.5 kilograms of bauxite cement mixture, add 17.5 kilograms of fine aggregates therein, stir evenly, 200 revolutions per minute, stirring time is 30 minutes, promptly obtains 25 kilograms of mortars in the present embodiment 1;

[0039] S4: Weigh 300 grams of surface repair agent, add 3.95 kilograms of water, stir evenly, 200 revolutions per minute, and stir for 30 minutes to obtain the additive;

[0040] S5: Add 4.25 g of additives to the mortar obtained in s...

Embodiment 2

[0051] The difference from Example 1 is: the preparation of bauxite cement mixture: weigh 12 parts of bauxite, 8 parts of sodium carbonate, 15 parts of alunite, 12 parts of water reducing agent, 18 parts of ethanol, 12 parts of silicic acid compound, cement 65 parts, 15 parts of fiber, 8 parts of viscosity agent, mix and stir evenly, 150 revolutions per minute, and the stirring time is 30 minutes to obtain the alumina cement mixture.

[0052] In this example 2, the fine aggregate is No. 5 silica sand, the silicic acid compound is clay, the water reducer is a mixture of melamine, naphthalene and polycarbonate in a mass ratio of 1:2:1, the fiber is polypropylene fiber, and the cement is 525 No. Portland cement, the viscosity agent is carboxylated styrene-butadiene copolymer emulsion, and the surface repair agent is acrylic resin.

[0053]In this example, the polymer fiber concrete quick repair material is paved and solidified after 20 minutes. The compressive strength is greater...

Embodiment 3

[0055] The difference from Example 1 is: the preparation of bauxite cement mixture: weigh 15 parts of bauxite, 10 parts of sodium carbonate, 20 parts of alunite, 15 parts of water reducing agent, 20 parts of ethanol, 15 parts of silicic acid compound, cement 70 parts, 20 parts of fiber, 10 parts of viscosity agent, mix and stir evenly, 150 rpm, stirring time is 30 minutes, namely get the alumina cement mixture.

[0056] In this example 3, the fine aggregate is No. 5 silica sand, the silicic acid compound is feldspar, the water reducer is a mixture of melamine, naphthalene and polycarbonate in a mass ratio of 1:2:2, the fiber is polypropylene fiber, and the cement is No. 525 Portland cement, the viscosity agent is carboxylated styrene-butadiene copolymer emulsion, and the surface repair agent is acrylic resin.

[0057] In this example, the polymer fiber concrete quick repair material is paved and solidified after 25 minutes. After 1 day, the compressive strength is greater than...

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Abstract

The invention provides a novel polymer fiber concrete quick repair material and a preparation and construction method thereof. The quick repair material is composed of the following components: fiber-containing mortar and an additive in a mass ratio of 20-30:3-5. The novel polymer fiber concrete quick repair material provided by the invention is applicable to expressway, airfield runway, bridge and all concrete repair, can achieve quick repair of concrete cracking, broken plates, shedding, sugaring, pit slots and other diseases, has the characteristics of rapid opening, quick strength acquisition, hardness and softness, etc., and quick opening to traffic can be realized within 30-90min. The novel polymer fiber concrete quick repair material is applicable to 1-4centimeter pitted surfaces and pit slots, and has the advantages of good abrasion resistance, good waterproofness, good adhesion, good durability, good low temperature resistance, low cost, and short curing time, etc.

Description

technical field [0001] The invention belongs to the technical field of highway maintenance, and in particular relates to a polymer fiber concrete quick repair material and a preparation and construction method thereof. 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. [0003] A large number of concrete-based roads have been used for a long time or have been rolled by heavy vehicles. Under the repeated action of load and the natural environment, such as freeze-thaw cycles, salt freezing, carbonization and other factors, as well as in design, construction, maintenance and many other Under the combined effect of factors, various damages, such as cracks, pits, cracks, etc., will inevitably occur on the cement concrete pavement during its use, which will affect the speed and quality ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26C04B28/04E01C23/06C04B111/72
CPCC04B28/04C04B28/26C04B2111/0075C04B2111/72C04B2201/50E01C23/06C04B7/02C04B14/303C04B22/10C04B22/148C04B24/02C04B16/0633C04B24/2676C04B24/2641C04B14/06C04B24/128C04B24/00C04B24/286C04B14/10C04B14/045
Inventor 孙长宏
Owner TIANJIN BAISITE NEW MATERIAL TECH
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