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Recycled material for reducing cracking foam asphalt pavement and its preparation and construction method

A foamed asphalt and asphalt pavement technology is applied in the fields of reducing cracking of foamed asphalt pavement, as well as in the fields of its preparation and construction.

Active Publication Date: 2021-10-15
BEIJING ZHIHUATONG TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the treatment of asphalt pavement rutting, load-type cracks and non-load-type cracks and other diseases and pavement overhaul projects, the existing foamed asphalt in-situ cold recycled mixtures still have poor strength and early bonding, and aggregates exist. Problems such as looseness, threshing, and insufficient stability

Method used

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  • Recycled material for reducing cracking foam asphalt pavement and its preparation and construction method

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Embodiment Construction

[0031] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0034] In the existing technology, the strength ...

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Abstract

The invention provides a recycled foamed asphalt pavement material with reduced cracking and its preparation and construction method, which relates to the technical field of highways and municipal engineering. The material has high strength and low shrinkage cracking rate, so that the recycled foamed asphalt material can be used as a base layer Or the overall bearing capacity of the lower layer and the service life of the road surface; the components of the material include: 85-100 parts by mass of asphalt pavement recycled materials, 5-10 parts by mass of gravel, 3-5 parts by mass of fine aggregate, foamed asphalt 2-3 parts by mass, 4-5 parts by mass of water, 1-2 parts by mass of slag sulphoaluminate and / or ferroaluminate cement and 0.1-0.5 parts by mass of fiber; mixing in the factory or cooling in situ can be used during preparation Method of regenerating on-site mixing. The technical scheme provided by the invention is applicable to the paving or renovation process of the foam asphalt pavement.

Description

【Technical field】 [0001] The invention relates to the technical field of highways and municipal engineering, in particular to a recycled material for reducing cracking foam asphalt pavement and a preparation and construction method. 【Background technique】 [0002] my country's highway construction is developing rapidly. According to the calculation of asphalt design life of 15-20 years, from now on, about 12% of the asphalt pavement needs to be repaired every year, and it will increase at a rate of 15% every year. If all waste and old materials are recycled, 12 billion yuan in material costs can be saved every year, and the resulting environmental benefits will be even greater. Cold recycling technology can effectively solve the problem of resource waste, and compared with other traditional construction methods, it can save 40%-50% of the total investment. However, at present, this technology is mostly used in the grassroots of low-grade roads, and the utilization rate of w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C19/10E01C7/00E01C7/18C04B28/08C04B18/16
CPCC04B18/16C04B28/08C04B28/082E01C7/00E01C7/18E01C19/1004C04B14/02C04B22/002C04B20/0048C04B24/36Y02W30/91
Inventor 邱建波石红星李迎民刘刚武彦龙郭广生蔡轩秦家禄闫伟潘新涛郑韶光董月振杨柏顺邢增楠杨超林红星李涛
Owner BEIJING ZHIHUATONG TECH CO LTD
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