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Air-entrained fracture resistance reinforcer for roads

A reinforcing agent and road technology, which is applied in the field of construction engineering materials, can solve the problems of frost resistance, corrosion resistance, impact wear resistance and poor durability, so as to save maintenance time, reduce concrete cracks and improve homogeneity Effect

Inactive Publication Date: 2017-03-22
哈尔滨强石新材料技术开发股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a road air-entrained anti-bending enhancer, which solves the problems of poor frost resistance, corrosion resistance, impact resistance, wear resistance and durability in the existing road-entrained air-entrained anti-bending enhancer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1), take by weighing 90 parts of slag, 10 parts of PCL resin, 0 part of manganese slag; The preceding two kinds of raw materials are carried out drying process respectively;

[0040] (2) adding the dried slag and the PCL resin into the reactor, and adding 0.02% dihydrocarbyl phosphite of the two mixtures by mass;

[0041] (3) Utilize high-purity nitrogen to replace the air in the reactor;

[0042] (4) Turn on the heating device, heat the material, control the temperature of the material according to the degree of reaction, and carry out staged heating.

[0043] (5) When the viscosity of the reactant no longer rises significantly, finish the reaction, discharge, and granulate to obtain a flexible polylactic acid copolymer with a weight average molecular weight of about 220,000.

Embodiment 2

[0045] (1), take by weighing 80 parts of slag, 10 parts of PCL resin, 10 parts of manganese slag; The preceding two kinds of raw materials are carried out drying process respectively;

[0046] (2) adding the dried slag and the PCL resin into the reactor, and adding 0.02% dihydrocarbyl phosphite of the two mixtures by mass;

[0047] (3) Utilize high-purity nitrogen to replace the air in the reactor;

[0048] (4) Turn on the heating device, heat the material, control the temperature of the material according to the degree of reaction, and carry out staged heating.

[0049] (5) When the viscosity of the material reaches 200,000 CPS, add 10 parts of manganese slag. Continue to heat up to control the material to carry out the polymerization reaction.

[0050] (6) When the viscosity of the reactant no longer rises significantly, finish the reaction, discharge, and granulate to obtain a flexible polylactic acid copolymer.

Embodiment 3

[0052] (1), take by weighing 70 parts of slag, 20 parts of PCL resin, 10 parts of manganese slag; The preceding two kinds of raw materials are carried out drying process respectively;

[0053] (2) adding the dried slag and the PCL resin into the reactor, and adding 0.02% dihydrocarbyl phosphite of the two mixtures by mass;

[0054] (3) Utilize high-purity nitrogen to replace the air in the reactor;

[0055] (4) Turn on the heating device, heat the material, control the temperature of the material according to the degree of reaction, and carry out staged heating.

[0056] (5) When the viscosity of the material reaches 200,000 CPS, add 10 parts of manganese slag. Continue to heat up to control the material to carry out the polymerization reaction.

[0057] (6) When the viscosity of the reactant no longer rises significantly, finish the reaction, discharge, and granulate to obtain a flexible polylactic acid copolymer.

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Abstract

The invention discloses an air-entrained fracture resistance reinforcer for roads, belongs to the field of building engineering materials and relates to air-entrained fracture resistance reinforcers for the roads. The reinforcer is prepared from the raw materials: slag, alumina and manganese slag. The reinforcer is prepared through the production steps: (1) subjecting the slag and the alumina to drying treatment; (2) adding the raw materials into a reactor; (3) adding a catalyst into the reactor according to a certain weight ratio; (4) exhausting air from the reactor by using a vacuum pump, and adding high-purity nitrogen gas into the reactor; (5) carrying out heating according to certain rules; (6) adding the manganese slag into the reaction mass according to a raw material ratio while carrying out a reaction until the viscosity reaches about 200,000 cps; (7) continuing to carry out the reaction, and ending the reaction until the viscosity of the reaction mass does not rise obviously any more; and (8) carrying out devolatilization, granulation and drying treatment, thereby obtaining the finished product. According to the air-entrained fracture resistance reinforcer for the roads, the problem of the existing air-entrained fracture resistance reinforcers for the roads that the freezing resistance, corrosion resistance, shock resistance, wear resistance and durability are poor is solved.

Description

technical field [0001] The invention belongs to the field of building engineering materials, and relates to a road air-entrained anti-bending enhancer. Background technique [0002] Air-entraining road flexural strengthening agent integrates the functions of retarding, flat strength, antifreezing, water reduction and strengthening, which can meet the needs of different construction characteristics such as normal temperature, low temperature, negative temperature, antifreezing, etc., and improve the performance of concrete. It is an ideal admixture for the construction of various road slippery pavers and other road machinery, and is an important technical measure to improve the quality of the project. This product can increase the flexural strength by 20-40% while reducing the amount of cement by 15%. The existing air-entraining anti-bending reinforcement agents for roads have the disadvantages of poor frost resistance, corrosion resistance, impact resistance, abrasion resis...

Claims

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Application Information

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IPC IPC(8): C04B22/06
Inventor 关紫星关未然
Owner 哈尔滨强石新材料技术开发股份有限公司
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