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A thin-layer pavement pavement ultra-sticky wear layer and its construction method

A construction method and a wear layer technology, which are applied to the construction of thin-layer pavement super-stick wear layer, and the field of thin-layer road pavement super-stick wear layer, can solve the problem of unsatisfactory economic and social benefits, surface aggregate bulge Poor flatness, insufficient bonding strength and other problems, to achieve the effect of enhancing the rolling function of driving, low driving noise, and high bonding strength

Active Publication Date: 2017-02-15
GUANGZHOU SUNRISE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the asphalt pavement maintenance and cement pavement "white to black" overlay technology that has been widely used in China has micro-surfacing. The paving thickness of traditional micro-surfacing is generally 0.8-1.0cm, and the bonding strength between the pavement and the pavement is insufficient. Easy to peel, poor durability, easy to run, easy to wear, easy to age, surface aggregate convex flatness is poor, driving noise and other defects, while the ultra-thin wear layer technology in the prior art can overcome the micro-surfacing technology However, due to the use of hot-mix asphalt mixture and thick structural layers, the carbon emissions are large and the cost is high, and large-scale hot-mix asphalt mixing equipment is required for construction. Economic and social benefits Neither is ideal

Method used

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  • A thin-layer pavement pavement ultra-sticky wear layer and its construction method
  • A thin-layer pavement pavement ultra-sticky wear layer and its construction method
  • A thin-layer pavement pavement ultra-sticky wear layer and its construction method

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Experimental program
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Effect test

Embodiment 1

[0043]A kind of ultra-sticky wear layer for pavement pavement, which is prepared from the following components in parts by mass:

[0044]

[0045] Among them, the amount of SBS modifier in the emulsion is 2.5%, the weight ratio of SBS modifier and SBR modifier is 1:1, and the emulsifier is QD-PS1 cationic slow cracking and fast cracking agent produced by Jiangmen Qiangqiang Road Material Co., Ltd. The emulsifying agent, the particle size of diabase is 0-8mm, the coarse and fine aggregates meet the "Quality Requirements for Coarse and Fine Aggregate for Microsurfacing and Slurry Sealing", and the maximum particle size is 8mm. The gradation adopts "Special Grading for Superviscous Abrasion Layer Aggregate", and the aggregate screening test results are shown in Table 2:

[0046] Table 2 Sieving test results of aggregates in super viscous wearing layer

[0047]

[0048] The steps of the construction method for paving the super-sticky wear layer on the thin-layer pavement ar...

Embodiment 2

[0052] A kind of ultra-sticky wear layer for pavement pavement, which is prepared from the following components in parts by mass:

[0053]

[0054] Among them, the amount of SBS modifier in the emulsion is 2.7%, the weight ratio of SBS modifier and SBR modifier is 5:1, the particle size of diabase is 0-8mm, and the coarse and fine aggregates meet the "micro-surface "Quality Requirements for Coarse and Fine Aggregate Used for Treatment and Slurry Sealing Layer", the maximum particle size is 8mm. The gradation adopts "Special Grading for Superviscous Abrasion Layer Aggregate", and the aggregate screening test results are shown in Table 3:

[0055] Table 3 Sieving test results of aggregates in super viscous wearing layer

[0056]

[0057] The steps of the construction method for paving the super-sticky wear layer on the thin-layer pavement are as follows:

[0058] First put diabase, modified emulsified asphalt, cement, and water on the slurry seal vehicle, and mix at 35°C...

Embodiment 3

[0061] A kind of ultra-sticky wear layer for pavement pavement, which is prepared from the following components in parts by mass:

[0062]

[0063] Among them, the amount of SBS modifier in the emulsion is 3.3%, the weight ratio of SBS modifier and SBR modifier is 3:1, and the emulsifier is QD-PS1 cationic slow cracking and fast cracking agent produced by Jiangmen Qiangqiang Road Material Co., Ltd. The emulsifying agent, the particle size of diabase is 0-8mm, the coarse and fine aggregates meet the "Quality Requirements for Coarse and Fine Aggregate for Microsurfacing and Slurry Sealing", and the maximum particle size is 8mm. The gradation adopts "Special Grading for Superviscous Abrasion Layer Aggregate", and the aggregate screening test results are shown in Table 4:

[0064] Table 4 Sieving test results of superviscous wearing layer aggregates

[0065]

[0066] The steps of the construction method for paving the super-sticky wear layer on the thin-layer pavement are a...

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Abstract

The invention discloses a laminar road surface paving super-sticky wearing layer and a construction method thereof. The laminar road surface paving super-sticky wearing layer comprises alkaline aggregate, modified emulsified asphalt, cement, water and a liquid additive; the laminar road surface paving super-sticky wearing layer prepared from the components of the paving super-sticky wearing layer through the construction method is high in bonding strength with an old road surface and has the advantages of being wear resistant, dense and smooth in surface, durable in use, waterproof, resistant to skid, small in noise, easy and convenient to construct, rapid, low carbon, capable of saving energy and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of pavement construction, and in particular relates to a super-sticky wear layer for pavement with a thin layer, and also relates to a construction method for a super-sticky wear layer for pavement with a thin layer. Background technique [0002] Asphalt pavement has the advantages of driving safety, comfort, and convenient maintenance. At present, more than 85% of new high-grade highways in my country use asphalt pavement. The transformation of old cement pavement from white to black has become a major trend in the development of roads and urban roads. . Under the long-term effect of natural environment and vehicle load, the asphalt pavement will gradually show slight cracking, rutting, insufficient skid resistance, looseness, aging and pitting. If it is not repaired in time, the disease will further accelerate and deteriorate. On the one hand, it will affect The overall service life of the pavement accelerates the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C04B14/04C04B14/14C04B22/00C04B22/12
CPCC04B26/26C04B2111/0075C04B14/04C04B14/14C04B22/122C04B22/002
Inventor 胡学斌赖洪田赖洪平张志隆
Owner GUANGZHOU SUNRISE SCI & TECH CO LTD
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