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Asphalt concrete for road construction and preparation method thereof

A technology for asphalt concrete and roads, which is applied in the fields of environmental protection and resource recycling. It can solve the problems of easy water absorption and agglomeration, difficult storage, and reduced fiber mixing and dispersion, so as to improve the shear resistance and benefit the environment. Resistant to wedging erosion and swelling effects

Active Publication Date: 2017-11-24
张莹莹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The volume of lignin fiber expands obviously after absorbing water. In addition, the fiber with high water absorption is easy to absorb water and agglomerate when stored, which leads to the reduction of mixing and dispersibility of the fiber, so it is not easy to store

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of bituminous concrete for highway construction and preparation method thereof, its preparation step comprises:

[0023] (1) Modification of lignin fiber

[0024] In parts by weight, the lignin fibers are first dried and pulverized for pretreatment; then 100 parts of lignin fibers, 2 parts of ACR resin emulsion, 0.03 parts of phenanthroline and europium, and 1-5 parts of pyromellitic dianhydride Grafted polyetherimide, 0.04 part of 3-fluoro-2-carboxylate methyl thiophene, 0.03 part of polyurethane prepolymer, 77 parts of petroleum ether are mixed; then kneaded in a kneader for 2 hours, and the petroleum is recovered during the kneading process Ether, the kneading temperature is 110°C. After the kneading is finished, the modified lignin fiber is obtained;

[0025] (2) Preparation of asphalt concrete for road construction

[0026] In parts by weight, add 20 parts of asphalt, 0.19 parts of modified lignin fiber, 0.03 part of carbon fiber, 5 parts of organic silic...

Embodiment 2

[0028] A kind of bituminous concrete for highway construction and preparation method thereof, its preparation step comprises:

[0029] (1) Modification of lignin fiber

[0030] In parts by weight, the lignin fibers are first dried and pulverized for pretreatment; then 100 parts of lignin fibers, 1 part of ACR resin emulsion, 0.01 part of o-phenanthroline and europium, 1-5 parts of pyromellitic dianhydride Grafted polyetherimide, 0.01 part of 3-fluoro-2-carboxymethyl thiophene, 0.01 part of polyurethane prepolymer, 50 parts of petroleum ether are mixed; then kneaded in a kneader for 0.5 hours, and the petroleum is recovered during the kneading process Ether, the kneading temperature is 80°C, after the kneading is completed, the modified lignin fiber is obtained;

[0031] (2) Preparation of asphalt concrete for road construction

[0032] In parts by weight, add 10 parts of asphalt, 1 part of modified lignin fiber, 0.01 part of carbon fiber, 3 parts of organic silicon high boil...

Embodiment 3

[0034] A kind of bituminous concrete for highway construction and preparation method thereof, its preparation step comprises:

[0035] (2) Modification of lignin fiber

[0036]In parts by weight, the lignin fibers are first dried and pulverized for pretreatment; then 100 parts of lignin fibers, 5 parts of ACR resin emulsion, 0.1 part of phenanthroline and europium, and 5 parts of pyromellitic dianhydride are grafted Polyetherimide, 0.1 part of 3-fluoro-2-carboxylate methyl thiophene, 0.1 part of polyurethane prepolymer, and 100 parts of petroleum ether are mixed; then put into a kneader and knead for 0.5 hours, and petroleum ether is recovered during the kneading process. The kneading temperature was 150°C. After the kneading is finished, the modified lignin fiber is obtained;

[0037] (2) Preparation of asphalt concrete for road construction

[0038] In parts by weight, add 30 parts of asphalt, 0.1 part of modified lignin fiber, 0.1 part of carbon fiber, 7 parts of organic...

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PUM

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Abstract

The invention provides an asphalt concrete for road construction and a preparation method thereof. The preparation method includes: adding asphalt, modified lignin fiber, carbon fiber and an organosilicon high-boiling matter into a reaction kettle, then adding aggregate, raising the temperature and mixing the substances evenly, thus obtaining the asphalt concrete for road construction.

Description

technical field [0001] The invention relates to the fields of environmental protection and recycling of resources, including the comprehensive utilization of high boilers produced during the production of organosilicon monomer (CH3)2SiCl2, especially an asphalt concrete for road construction and a preparation method thereof. technical background [0002] Fiber-modified asphalt concrete is a composite material that improves the overall performance of asphalt mortar and asphalt mixture by adding fiber materials, thereby improving the quality of asphalt pavement. Compared with other modification methods (such as polymer modification), the outstanding feature of fiber-modified asphalt concrete is that it can prevent the expansion of cracks in concrete structures (including temperature shrinkage cracks and reflection cracks) and reduce rutting flow deformation and fatigue damage. The emergence of fiber-modified asphalt concrete has a significant effect on prolonging the service l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B20/02
CPCC04B20/023C04B26/26C04B2111/0075C04B2201/50C04B16/06C04B14/386C04B24/001C04B14/00C04B18/04
Inventor 张莹莹王燕张园李德彬崔冬艳成龙卢利国冯浩锐马建李迎途
Owner 张莹莹
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