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A Construction Technology of Hot-mix Asphalt Mixture Equal-thick Gravel Pavement

A technology of asphalt mixture and construction technology, applied in the direction of roads, roads, coagulation pavement paved on site, etc., can solve problems such as easy rutting, and achieve the effect of reducing material cost, ensuring high temperature stability, and achieving obvious economic benefits.

Active Publication Date: 2018-08-03
王壹帆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a construction technology of hot-mix asphalt mixture equal-thickness crushed stone pavement, which solves the problem that asphalt pavement is prone to rutting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Conditions of this embodiment: make a 6cm thick hot-mix asphalt mixture and equal-thickness crushed stone pavement, both the first layer of asphalt and the second layer of asphalt use hot asphalt, and the dosage is 0.4kg / m 2 ; The particle size of the scattered gravel is 60mm-55mm, and the dosage is 41 m 3 / 1000m 2 ; The hot-mix asphalt mixture adopts AC-10 type; the test loose paving thickness is 6.5cm; the combination of rolling machinery is: 16t double steel wheel vibratory roller static pressure 1 time + 16t double steel wheel vibratory roller vibration pressure 3 times + 26t rubber wheel Roller rolls twice.

[0033] The hot-mix asphalt mixture equal-thickness crushed stone pavement construction process of the present invention comprises the following steps:

[0034] The first step, spreading the first layer of asphalt and spreading gravel:

[0035] 1) Load the hot asphalt and gravel on the asphalt gravel synchronous sealing vehicle, and use the designed amount o...

Embodiment 2

[0053] Conditions of this embodiment: make 8cm thick hot mix asphalt mixture and other thick particle diameter crushed stone pavement. Both the first layer of asphalt and the second layer of asphalt use hot asphalt, and the dosage is 0.5kg / m 2 ; The particle size of scattered crushed stone is 80mm~75mm, and the dosage is 52 m 3 / 1000m 2 ; The hot-mix asphalt mixture adopts AC-10 type; the test loose pavement thickness is 8.6cm; the combination of rolling machinery is: 16t double steel wheel vibratory roller static pressure 1 time + 16t double steel wheel vibratory roller vibration pressure 4 times + 26t rubber wheel Roller rolls twice.

[0054]The hot-mix asphalt mixture equal-thickness crushed stone pavement construction process of the present invention comprises the following steps:

[0055] The first step, spreading the first layer of asphalt and spreading gravel:

[0056] 1) Load the hot asphalt and gravel on the asphalt gravel synchronous sealing vehicle, and use the ...

Embodiment 3

[0074] Conditions of this embodiment: make 4cm thick hot-mix asphalt mixture and other thick particle diameter crushed stone pavement. Both the first layer of asphalt and the second layer of asphalt use hot asphalt, and the dosage is 0.4kg / m 2 ; The particle size of the scattered gravel is 40mm-35mm, and the dosage is 24 m 3 / 1000m 2 ; The hot-mix asphalt mixture adopts AC-5 type; the test loose pavement thickness is 4.5cm; the combination of rolling machinery is: 16t double-drum vibratory roller static pressure 1 time + 16t double-drum vibratory roller vibration 4 times + 26t rubber wheel Roller rolls twice.

[0075] The hot-mix asphalt mixture equal-thickness crushed stone pavement construction process of the present invention comprises the following steps:

[0076] The first step, spreading the first layer of asphalt and spreading gravel:

[0077] 1) Load the hot asphalt and gravel on the asphalt gravel synchronous sealing vehicle, and use the designed amount of asphalt...

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Abstract

The invention provides a construction technology of a pavement made from a hot-mix asphalt mixture and large-grain-size crushed stone.Crushed stone playing a supporting role is sprayed to a lower bearing layer in a bonding mode through a layer spreading method, then the hot-mix asphalt mixture is spread on the sprayed crushed stone, rolling and curing molding are performed, and the bituminous pavement is obtained.The technology comprises the following steps that firstly, a first layer of asphalt and crushed stone are sprayed, wherein the grain size D of the crushed stone is larger than Dmax-5 mm and smaller than or equal to Dmax; secondly, the crushed stone is trimmed and stably pressed; thirdly, a second layer of asphalt is sprayed after the crushed stone is stably pressed; fourthly, the hot-mix asphalt mixture is mixed; fifthly, the hot-mix asphalt mixture is conveyed; sixthly, the hot-mix asphalt mixture is sprayed; seventhly, the hot-mix asphalt mixture is rolled; eighthly, curing and traffic opening are performed.According to the construction technology, the problem that ruts are likely to be produced on a bituminous pavement is solved, the adopted technology is low in difficulty, the manufacturing cost is low, and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of road construction and maintenance, in particular to a construction process for hot-mixed asphalt mixture and other thick-grained crushed stone pavement. Background technique [0002] Most of the roads and urban roads that have been built in my country are asphalt roads. Due to the serious overloading of vehicles, large traffic volume, channelized driving, and high temperature weather, rutting has become the most important disease in the early stage of asphalt pavement, such as the climbing section of the expressway, the BRT (Bus Rapid Transit) lane and Rutting is the most likely and serious place on the guide road, etc. According to the data, 80% of the asphalt pavement has rutting in different degrees. It is a stubborn disease among road diseases and has not been solved. [0003] At present, the typical asphalt pavement structure is divided into three types: suspended dense structure, skeleton void stru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/32E01C7/22
CPCE01C7/22E01C7/32
Inventor 王海有
Owner 王壹帆
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