Applied Research on Cold Recycling Technology of Asphalt Pavement

2012 ◽  
pp. 35-41
Author(s):  
Xiangshang Chen ◽  
Rongxia Wang ◽  
Fanglu Jiang ◽  
Zhaoxia Chen ◽  
Fang Xu ◽  
...  
Keyword(s):  
Applied Research ◽  
Asphalt Pavement ◽  
Recycling Technology ◽  
Cold Recycling

Analysis of Weighting Coefficients of Post-Assessment Indexes for Cold Recycling Engineering of Asphalt Pavement Based on Hierarchy Analytic Procedure

2012 ◽  
Vol 204-208 ◽  
pp. 1857-1863
Author(s):  
Min Jiang Zhang ◽  
Wen Bo Zhang ◽  
Bao Yang Yu
Keyword(s):  
Asphalt Pavement ◽  
Base Layer ◽  
Environmental Benefit ◽  
Analytic Hierarchy ◽  
Analytic Procedure ◽  
The Road ◽  
Technology Project ◽  
Recycling Technology ◽  
Cold Recycling ◽  
Post Assessment

Based on the theory of hierarchy analysis, the post-assessment indexes system of cold recycling technology project have been established, and the hierarchy analytic procedure have been used to determine the weighing coefficients for post-assessment indexes of cold recycling engineering of asphalt pavement, and the weighing values for various levels factors were given for the cold recycling base layer project of highway of Shenyang-Yingkou. Considering the road performance and economic benefit, societal and environmental benefit, the analytic hierarchy procedure (AHP) method can effectively avoid making wrong decisions subjectively and made it more scientific and reasonable to determine the weighing values of post-assessment indexes, and it is an effective method to determine the weighing values for post-assessment indexes of the cold recycling technology project.

Research and Application Prospect on Cold Recycling Technology of Asphalt Pavement

2012 ◽  
Vol 204-208 ◽  
pp. 1909-1913 ◽  
Author(s):  
Ming Hui Liu
Keyword(s):  
Design Method ◽  
Asphalt Pavement ◽  
Low Cost ◽  
Detailed Comparison ◽  
Development Trend ◽  
Mixture Design ◽  
Recycling Technology ◽  
Comparison And Analysis ◽  
Cold Recycling ◽  
Important Design

Abstract. Cold recycling technology is applied to road rehabilitation in the recent years, and it has the advantages of mixture without heating, high RAP availability, low cost, quick speed of construction etc. Cold in-place recycling technology in this paper has been summarized including applied scope, cold recycling layer type, additives and new aggregates. We gives a detailed comparison and analysis to cold recycled mixture design method, and points out important design indexes. Combined with practical engineer of the technology in China, it analyzes application prospect and development trend on cold recycling technology.

Cold Recycling Technology Application of Old Asphalt Pavement in Rural Road Alteration Engineering

2012 ◽  
Vol 238 ◽  
pp. 497-502
Author(s):  
Zhi Dong Guo ◽  
Jia Liu ◽  
Cang Bo Li
Keyword(s):  
Asphalt Pavement ◽  
New Technology ◽  
Construction Technology ◽  
Technology Application ◽  
The Road ◽  
Recycling Technology ◽  
Structure Surface ◽  
Design Requirements ◽  
Pavement Base ◽  
Cold Recycling

Cold recycling technology of old asphalt pavement is a relatively new technology which has important application in the road surface treatment. Combining with the application of the cold recycling technology in rural old asphalt pavement, this paper analyzes and elaborates its construction technology and experience approach. The existing old asphalt pavement material is used in accordance with the new design requirements to form a special pavement structure surface. On rolling forming sections, the test is conducted for compaction, smoothness, bending and sinking and drill-core sampling for compressive strength. The results show that this process meets the general requirements of pavement base, and the quality is good with the advantages of saving costs and reducing waste damaging the environment.

A literature review on cold recycling technology of asphalt pavement

2018 ◽  
Vol 180 ◽  
pp. 579-604 ◽  
Author(s):  
Feipeng Xiao ◽  
Shenglei Yao ◽  
Jingang Wang ◽  
Xinghai Li ◽  
Serji Amirkhanian
Keyword(s):  
Literature Review ◽  
Asphalt Pavement ◽  
Recycling Technology ◽  
Cold Recycling

Experimental Study on Water Stability of Cold Recycled Mixture Stabilized with Emulsified Asphalt

2012 ◽  
Vol 204-208 ◽  
pp. 1914-1917
Author(s):  
Ming Hui Liu
Keyword(s):  
Asphalt Pavement ◽  
Water Stability ◽  
Experiment Research ◽  
Asphalt Cement ◽  
Freeze Thaw ◽  
Recycling Technology ◽  
Split Test ◽  
Cold Recycling ◽  
Marshall Stability ◽  
Emulsified Asphalt

Abstract: Water damage on asphalt pavement will accelerate pavement destruction, and decrease the service life of highway. Water stability of recycled mixture especially should be strengthened in design and construction of cold-recycled pavement. Taking for cold recycling technology as research object , We studied water stability and freeze-thaw stability of cold recycled mixture stabilized with emulsified asphalt, cement and emulsified asphalt through tests of Marshall stability and immersion Marshall、split test 、soaking split test and freeze-thaw split etc. The results obtained show that: Water stability of Cold recycled mixture stabilized two different additives all can satisfy requirement, and cold recycled mixture adding little cement has better stability. Cold recycled mixture stabilized emulsified asphalt can be used as highway base or sub-surface of pavement. The experiment research results provide a reliable reference for cold recycled mixture design and its applicability.

USE OF ACRYLIC COPOLYMER ADDITIVE SOIL STABILIZATION PLUS FOR PREPARATION OF MIXTURES MADE BY COLD RESYCLING TECHNOLOGY AND CRUSHED STONE-SAND MIXTURES IN PAVEMENT FOUNDATION LAYERS

2021 ◽  
Vol 2021 (24) ◽  
pp. 48-59
Author(s):  
Anatolii Mudrychenko ◽  
◽  
Ivan Balashov ◽  
Sergey Illyasch ◽  
◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Soil Stabilization ◽  
Crushed Stone ◽  
Technological Parameters ◽  
Acrylic Copolymer ◽  
Sand Mixture ◽  
Recycling Technology ◽  
Complex Binder ◽  
Cold Recycling ◽  
Pavement Foundation

ntroduction. Rehabilitation of public roads network requires a comprehensive recovery with strengthening of the bearing capacity of the pavement foundation. Rehabilitation of the foundation bearing capacity performed by arranging layers of road material made by cold recycling technology (hereinafter — CRRM) in accordance with [4] or by arranging a layer of crushed stone — sand mixture reinforced with cement or complex binder (hereinafter — CSSM 20) according to [13]. Purpose. The purpose of the work is to study the feasibility of using acrylic additives for the preparation of mixtures made by cold recycling technology and crushed stone-sand mixtures treated with cement in the layers of pavement foundation. Materials and methods. Experimental comparative tests of CRRM and CSSM 20 with different content of complex binder were performed. Results. Feasibility of acrylic additives use has been established (hereinafter — the additive) for the preparation of CRRM and CSSM 20 in the pavement foundation layers. Recommendations on technological parameters of preparation, transportation, laying and compaction of mentioned mixtures are given. Conclusions. Performed researches have shown that according to physical and mechanical indicators CRRM and CSSM20 meet the requirements of the current normative documents of Ukraine. The advantages of use are noted.

The Study on Foaming Characteristics of Foamed Asphalt in Cold Recycling Technology

2011 ◽  
Vol 243-249 ◽  
pp. 4293-4296
Author(s):  
Jing Li Liu ◽  
Lian Yu Wei ◽  
Guo Qiang Zhang
Keyword(s):  
Quality Control ◽  
Theoretical Basis ◽  
Asphalt Mixture ◽  
Construction Process ◽  
Environment Protection ◽  
Effect Evaluation ◽  
Construction Period ◽  
Foamed Asphalt ◽  
Recycling Technology ◽  
Cold Recycling

Through the foaming mechanism and foaming effect evaluation, this paper analyzes the production procedure, optimum content and strength of foamed asphalt mixture thoroughly. Combined with the construction process quality control and inspection and acceptance criteria, this paper provides data for reference and theoretical basis for application of cold recycled technology of foamed asphalt to pavement project. Its construction without disrupting traffic, thus shorten the construction period and improve efficiency, which also have advantages such as energy conservation, environment protection and economy. Above all, it is beneficial to foamed asphalt′s popularization and application.

scholarly journals Research and Analysis on the Principle in Plant Cold Recycling for Foamed Bitumen and Mixture Performance

2021 ◽  
Vol 4 (6) ◽  
Author(s):  
Zecheng Ni ◽  
Shijing Chen ◽  
Yihuan Li ◽  
Hongxi Peng ◽  
Jiawen Liang ◽  
...  
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
External Factors ◽  
Asphalt Pavements ◽  
Huge Amount ◽  
Construction Waste ◽  
The Road ◽  
Road Performance ◽  
Foamed Bitumen ◽  
Cold Recycling

The early asphalt pavement in our country severely reduced the road performance due to various external factors during the use process. According to incomplete statistics, there are more asphalt pavements that need to be renovated and repaired every year in China, and the amount of construction waste such as asphalt concrete and other construction waste reaches 1,000. About ten thousand tons. If such a huge amount of construction waste is not used, it will inevitably cause great pollution to the environment. If it can be reused, not only will it be environmentally friendly and energy-saving, it will also save more than one billion yuan in costs. In view of the above problems, this article conducts related Research and Analysis on the Principle in Plant Cold Recycling for Foamed Bitumen and Mixture Performance to provide reference for future projects.

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