/ 106 t - 1 /% /% ~ ~ 62 /% /% ~ 3 18 ~ ~ t 700

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1 Technology of Highway and Transport Apr No U A Research and Prospect of Application of Recycled Wastes in Pavement of Asphalt Road GAO Hui 1 3 LIU Nianping 2 Abstract Pavement and maintenance of roads should consume a good deal of aggregates and mineral powders and alternative use of recycled materials assists in protecting and saving natural resources. In combination with various road indices of asphalt mixtures and aggregates this paper studies all types of recycled wastes used for pavement of asphalt roads including industrial and construction wastes such as steel slag glass plastic rubber cement and ceramic etc. as well as incineration ash of domestic garbage etc. In according to their characteristics of grain size hardness roughness porosity and elasticity etc. the recycled wastes are applied in various bedding surface structures of roads respectively and embody the same road performance as natural aggregates and mineral powders and even more excellent. Key words road materials asphalt mixtures sustainable development recycle overview km 2009BAC62B km 60. 9% km km % HMA 6. 2 t 5. 6 t t kg 1 60 t 5 km 2 66 t SMA

32 2012 1 / 106 t - 1 /% /% 3. 4 33 4. 1 10 ~ 30 1. 0 100 98 30 ~ 62 /% /% 0. 44 21 5. 0 1 ~ 3 18 ~ 22 2. 8 5 0. 29 15 ~ 30 8 5 1. 4 2010 6 000 t 700 t 11. 7% 14 HMA 1 * 1. 5 2010 52 t 15 1 2 2.

2 / 106 t - 1 /% /% ~ ~ 62 /% /% ~ 3 18 ~ ~ t 700 t 11. 7% 14 HMA 1 * t % ~ 15% t mm t 2 t HMA 20 2% 10% 50% ~ 60% % mm 860 t 300 t HMA 10% % DBM Ali M M Y t 30% 5%

3 SHRP FHWA Mg MgO Cl Cl Na Na 2 O K K 2 O Si SiO VMA VFA mm 10% 5. 5% min Cao Weidong 26 1% ~ 3% 60 Rubber Asphalt % Asphalt Rubberised ix % ~ 20% 1% ~ 3% 2% ~ 4% 22 Tortum A 25 Moreno F 27 1% ~ 0. 6 mm HMA 45 min 18% ~ 22% FEhS Rubber Pavements CaO /MgO 2 Association BS- 50% EN % 23 JTG F Liu Shutang % 1% Wu Shaopeng % 9. 5 mm 7 d 1% SMA 62% ~ 6. 4 mm 2 % 1% ~ 3% Si SiO FHWA Ca CaO Fe Fe 2 O 3 FeO

4 % LDPE DBM 30% ~ 5 mm 16% TCLP Environmental Protection Agency 250% Plastiphalt 3 74% 16% TCLP ITS 30 LDPE mg L ~ mm 15% Cu Cd Pd Zn Cr Ni Hg / Nd 1 15% TCLP HDPE min 4% HDPE Chen Meizhu 39 50% 32 Ergun M PVC 60 2% ~ 6% Justo C E G % 8% PE d ASTM - D6270 EN12457 Gress 37 75% ph 28 Xue Yongjie 38 90% SMA Superpave 2 SMA 8% ~ 16% SMA Superpave Toxicity Characteristic Leaching Procedure 3 4 Fabiana Walter 35 50% HMA Zhang X 36

5 % mm 10% ~ 15% 3 1 SMA HRA ~ 3. 6 g /cm 3 SMA CaO / OGFC 4 MgO 12 ~ ph 5 LDPE 15% ~ 30% HDPE 4% PE 0. 4% 1. SMA 90% J % ~ 16% SMA 2. J J

6 J FHWA. User Guidelines for Waste and By - Product Ma-. terials in Pavement Construction Z J rubberpavements. org / library / noisereduction. asp J Analysis and Performance Evaluation of Different Crumb J. Rubber Modified CRM Asphalt J. Construction and Tortum A Celik C Aydin Ac. Determination of the Optimum Conditions for Tyre Rubber in Asphalt Concrete J Building And Environment J. 26 Cao W D. Study on Properties of Recycled Tire Rubber J Pasquini E Canestrari F Cardone F et al. Performance E- 11 valuation of Gap Graded Asphalt Rubber Mixtures J. Construction and Building Materials J J J J Su N Chen J S. Engineering Properties of Asphalt Concrete Made With Recycled Glass J. Resourc Conserv Recycl WRAP. Case Studies from AggRegain EB /OL. http / / www. aggregain. org. uk /index. html Ali M M Y Arulrajah A Disfani M M et al. Suitability of Using Recycled Glass - Crushed Rock Blends for Pavement Subbase Applications J. Geo - Frontiers Bagampadde U Wahhab H Aiban S A. Optimization of Steel Slag Aggregates for Bituminous Mixes in Saudi Arab J. Journal of Materials in Civil Engineering Motz H Geiseler J. Products of Steel Slags An Opportunity To Save Natural Resources J. Waste Management Wu Shaopeng Xue Yongjie Ye Qunshan et al. Utilization of Steel Slag as Aggregates for Stone Mastic Asphalt SMA Mixtures J. Building and Environment Rubber Pavements Association EB /OL. http / /www. 24 Liu Shutang Cao Weidong Fang Jianguo et al. Variance Building Materials Modified Asphalt Mixtures Using Dry Process J. Construction and Building Materials Moreno F Rubio M C Martinez - Echevarria M J. Analysis of Digestion Time and the Crumb Rubber Percentage in. Dry - Process Crumb Rubber Modified Hot Bituminous J Mixes J. Construction and Building Materials Edeskar T. Technical and Environmental Properties of Tyre Shreds Focusing on Ground Engineering Applica- 13. tions Z. Lulea University of Technology Putman B J Amirkhanian S N. Utilization of Waste Fibers in Stone Matrix Asphalt Mixtures J. Resources Conservation and Recycling Zoorob S E Suparma L B. Laboratory Design and Investigation of the Properties of Continuously Graded Asphaltic Concrete Containing Recycled Plastics Aggregates Replacement Plastiphalt J. Cement Concrete Composites Qadir A Imam M. Use of Recycled Plastic Waste Aggregate as a Partial Substitution Material in Pavement Structure C / /Sao Paulo Sp. Proceedings of the International Symposium on Pavement Recycling Hinislioglu S Agar E. Use of Waste High Density Polyethylene as Bitumen Modifier in Asphalt Concrete Mix J. Materials Letters Ergun M Iyinam S Iyinam A F. Flexural Behavior of Waste Plastic Added Asphalt Concrete Mixture C / /Sao Paulo Sp. Proceedings of the International Symposium on Pavement Recycling Justo C E G Veeraragavan A. Utilisation of Waste Plastic Bags in Bituminous Mix for Improved Performance of Roads Z. Bangalore Bangalore University Walter C E. Practical Refuse Recycling J. Journal of Environmental Engineering - ASCE

7 ~ 6 m /min 1. JTJ S JTG F S M M J M JFG D S GB S /3 9. J J M 欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍 Zhang X Gress D Karpinski S et al. Utilization of Municipal Solid Waste Combustion Bottom Ash as a Paving Material J. Transportation Research Record Gress D Zhang X Tarr S et al. Physical and Environmental Properties of Asphalt - Amended Bottom Ash J. Transportation Research Record Xue Yongjie Hou Haobo Zhu Shujing et al. Utilization of Municipal Solid Waste Incineration Ash in Stone Mastic Asphalt Mixture Pavement Performance and Environmental Impact J. Construction and Building Materials Chen M Z Lin J T Wu S P et al. Utilization of Recycled Brick Powder as Alternative Filler in Asphalt Mixture J. Construction and Building Materials Da Conceicao Leite F Dos Santos Motta R Vasconcelos K L et al. Laboratory Evaluation of Recycled Construction and Demolition Waste for Pavements J. Construction and Building Materials Mroueh U M Eskola P Laine - Ylijoki J. Life - Cycle Impacts of the Use of Industrial By - Products in Road and Earth Construction J. Waste Management

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