|Table of Contents|

Analysis on energy consumption and carbon emission of hot in-place recycled asphalt pavement in construction period(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2022年4期
Page:
30-39
Research Field:
道路工程
Publishing date:

Info

Title:
Analysis on energy consumption and carbon emission of hot in-place recycled asphalt pavement in construction period
Author(s):
CHEN Yu-liang;  HUANG Yi;  PENG Xiao-nan;  WANG Hong-xiang
(Hunan Communications Research Institute CO., LTD., Changsha 410015, Hunan, China)
Keywords:
road engineering;  carbon emission;  life cycle assessment;  hot in-place recycling;  energy consumption;  milling and resurfacing
PACS:
U416.217
DOI:
10.19721/j.cnki.1671-8879.2022.04.004
Abstract:
In order to analyse the energy consumption and carbon emission of hot in-place recycled asphalt pavement in construction period, life cycle analysis method was used, and then the construction period was divided into three stages, such as production and transportation of raw materials, production of mixture and construction. The calculation method of energy consumption and carbon emission was built on the basis of quota data, activity data and carbon emission factors. Combining with an engineering project of hot in-place recycling at a certain expressway in Hunan Province, an assessment unit was set up with 1 000 m3, and then the energy consumption and carbon emission were qualified at different stages of construction period. Two maintenance methods that are commonly applied in expressway(hot in-place recycling and milling and resurfacing)were comparatively analysed regarding energy consumption and carbon emission. The results show that the energy consumption is the highest in the process of heating existing pavement, which account for 47.4% of total energy consumption, whereas the energy consumption is 24.6% in the process of production and transportation of raw materials. The energy consumption in the period of paving and rolling is relatively low(respectively 1.6% and 7.0%). Furthermore, carbon emission is composed of energy-consumption and high-temperature-volatilization carbon emissions. The carbon emission is the highest in the process of mixture rolling(60.17 t for 1 000 m3 hot in-place recycling, 47.1% of total carbon emission), where the carbon emission from volatilization of asphalt at high temperature is 11.68 times as much as that from mechanical energy consumption. The second highest is heating existing pavement(25.0%). Compared with milling and resurfacing, hot in-place recycling technology shows remarkable benefits regarding energy saving and emission reduction. Its energy consumption and carbon emission are 35.6% and 49.2% of that of milling and resurfacing respectively. This is mainly because the recycling rates of hot in-place recycling utilizes of reclaimed asphalt mixture is high, and the addition of new material is only approximately 15%. Hence, the energy consumption of production and transportation of aggregate decreases from 7.35×105 to 1.03×105 MJ, and its carbon emission decreases from 68.8 to 9.6 t. Moreover, the energy consumption of production and transportation of modified asphalt reduces from 7.05×105 to 1.11×105 MJ, and its carbon emission reduces from 47.0 to 7.4 t. Considering that the estimated maintenance periods for hot in-place recycling and milling and resurfacing are 4.1 and 5.2 years, their corresponding annual carbon emissions are 31.2 and 49.9 t respectively. Hence, hot in-place recycling is a more environment-friendly maintenance technique from the viewpoint of energy consumption and carbon emission. The research is of significance to select maintenance methods on the basis of environmental benefits.13 tabs, 7 figs, 28 refs.

References:

[1] 段宝东,韩东东,赵永利.基于最小能耗的沥青路面就地热再生加热机组优化控制[J].公路交通科技,2021,38(1):19-26.
DUAN Bao-dong,HAN Dong-dong,ZHAO Yong-li.Optimization control of heating equipment in hot in-place recycling of asphalt pavement based on minimizing energy consumption[J].Journal of Highway and Transportation Research and Development,2021,38(1):19-26.
[2]王敬飞,展宏图.沥青混凝土路面就地热再生试验段全寿命周期技术评价分析[J].公路,2017,62(11):262-266.
WANG Jing-fei,ZHAN Hong-tu.Evaluation and analysis of whole life cycle technology for geothermal renewable test section of asphalt concrete pavement[J].Highway,2017,62(11):262-266.
[3]林晓锋.国道主干线广州绕城公路南环段就地热再生技术应用[J].中外公路,2021,41(5):307-311.
LIN Xiao-feng.Application of in-place hot recycling technology in Southern Ring Section of Guangzhou Ring Expressway of National Highway Networks[J].Journal of China & Foreign Highway,2021,41(5):307-311.
[4]牛文广.沥青路面就地热再生技术现状与发展历程[J].中外公路,2019,39(5):50-59.
NIU Wen-guang.Review and development of in-place hot recycling technology of asphalt pavement[J].Journal of China & Foreign Highway,2019,39(5):50-59.
[5]FERNANDES S R M,SILVA H M R D,OLIVEIRA J R M.Carbon dioxide emissions and heavy metal contamination analysis of stone mastic asphalt mixtures produced with high rates of different waste materials[J].Journal of Cleaner Production,2019,226:463-470.
[6]YANG R,KANG S,OZER H,et al.Environmental and economic analyses of recycled asphalt concrete mixtures based on material production and potential performance[J].Resources,Conservation and Recycling,2015,104:141-151.
[7]张童童,高 阳,贺显威,等.基于LCA的温拌再生沥青路面建设期节能减排效果研究[J].公路,2019,64(4):287-293.
ZHANG Tong-tong,GAO Yang,HE Xian-wei,et al.Research on energy saving and emission reduction of the warm-mix asphalt recycling pavement during construction period based on life cycle assessment[J].Highway,2019,64(4):287-293.
[8]CAO R J,LENG Z,YU H,et al.Comparative life cycle assessment of warm mix technologies in asphalt rubber pavements with uncertainty analysis[J].Resources,Conservation and Recycling,2019,147:137-144.
[9]FOTH M,BERTHELOT C.Quantifying greenhouse gas generation for roadway maintenance,rehabilitation and reconstruction treatments[C]//TAC.Proceedings of 2013 Conference and Exhibition of the Transportation Association of Canada-Transportation:Better-Faster-Safer.Ottawa:Transportation Association of Canada(TAC),2013:1-14.
[10]CHOI J H.Strategy for reducing carbon dioxide emissions from maintenance and rehabilitation of highway pavement[J].Journal of Cleaner Production,2019,209:88-100.
[11]MA F,DONG W H,FU Z,et al.Life cycle assessment of greenhouse gas emissions from asphalt pavement maintenance:A case study in China[J].Journal of Cleaner Production,2021,288:125595.
[12]邱延峻,罗浩原,张家康,等.热拌与温拌沥青路面生产施工排放物对比[J].长安大学学报(自然科学版),2020,40(1):30-39.
QIU Yan-jun,LUO Hao-yuan,ZHANG Jia-kang,et al.Comparative of emissions from production and construction of hot mix and warm mix asphalt pavement[J].Journal of Chang'an University(Natural Science Edition),2020,40(1):30-39.
[13]IPCC.2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories[R].Genève:IPCC,2019.
[14]GARRAÍN D,LECHÓN Y.Environmental footprint of a road pavement rehabilitation service in Spain[J].Journal of Environmental Management,2019,252:109646.
[15]SINGH A,VADDY P,BILIGIRI K P.Quantification of embodied energy and carbon footprint of pervious concrete pavements through a methodical lifecycle assessment framework[J].Resources,Conservation and Recycling,2020,161:104953.
[16]刘夏璐,王洪涛,陈 建,等.中国生命周期参考数据库的建立方法与基础模型[J].环境科学学报,2010,30(10):2136-2144.
LIU Xia-lu,WANG Hong-tao,CHEN Jian,et al.Method and basic model for development of Chinese reference life cycle database[J].Acta Scientiae Circumstantiae,2010,30(10):2136-2144.
[17]朱浩然,温肖博,卢 勇,等.路面寿命周期环境影响评价研究及软件开发[J].中外公路,2016,36(5):331-336.
ZHU Hao-ran,WEN Xiao-bo,LU Yong,et al.Research and software development on pavement life cycle environment impact assessment[J].Journal of China & Foreign Highway,2016,36(5):331-336.
[18]WANG M H,WANG C H,HUANG S,et al.Study on asphalt volatile organic compounds emission reduction:A state-of-the-art review[J].Journal of Cleaner Production,2021,318:128596.
[19]TANG B,ISACSSON U.Chemical characterization of oil-based asphalt release agents and their emissions[J].Fuel,2006,85(9):1232-1241.
[20]彭 波,邓海龙,曹世江,等.热拌沥青混合料碳排放量化与评价体系[J].长安大学学报(自然科学版),2019,39(3):1-9.
PENG Bo,DENG Hai-long,CAO Shi-jiang,et al.Carbon emission quantification and evaluation system of hot mix asphalt mixture[J].Journal of Chang'an University(Natural Science Edition),2019,39(3):1-9.
[21]程 玲,闫国杰,陈德珍,等.温拌沥青混合料摊铺节能减排效果的定量化研究[J].环境工程学报,2010,4(9):2151-2155.
CHENG Ling,YAN Guo-jie,CHEN De-zhen,et al.Quantitative investigation on energy conservation and emission reduction related to warm mix asphalt(WMA)[J].Chinese Journal of Environmental Engineering,2010,4(9):2151-2155.
[22]国家统计局能源统计司.中国能源统计年鉴-2019[M].北京:中国统计出版社,2020.
Department of Energy Statistics,National Bureau of Statistics.China energy statistical yearbook 2019[M].Beijing:China Statistics Press,2020.
[23]丁智勇,谢永平,王宝金,等.热拌沥青混合料生产和施工全过程能耗与排放评价[J].筑路机械与施工机械化,2016,33(2):113-116,120.
DING Zhi-yong,XIE Yong-ping,WANG Bao-jin,et al.Evaluation of energy consumption and emission of hot mix asphalt in production and construction process[J].Road Machinery & Construction Mechanization,2016,33(2):113-116,120.
[24]彭 波,蔡春丽,胡如安.高速公路沥青路面能耗与碳排放评价[J].长安大学学报(自然科学版),2016,36(5):8-15.
PENG Bo,CAI Chun-li,HU Ru-an.Energy consumption and carbon emission evaluation of expressway asphalt pavement[J].Journal of Chang'an University(Natural Science Edition),2016,36(5):8-15.
[25]王清洲,徐大伟,黄家麒,等.泡沫沥青冷再生技术节能减排效益测算[J].环境工程,2018,36(6):179-183.
WANG Qing-zhou,XU Da-wei,HUANG Jia-qi,et al.Energy saving and emission reduction benefit evaluation of cold recycling technology with foam asphalt[J].Environmental Engineering,2018,36(6):179-183.
[26]柴明明,李 明,齐桂才,等.就地热再生沥青路面建设期碳排放分析[J].公路交通科技,2016,33(10):148-151,158.
CHAI Ming-ming,LI Ming,QI Gui-cai,et al.Analysis of carbon emission during hot in-place recycling asphalt pavement construction[J].Journal of Highway and Transportation Research and Development,2016,33(10):148-151,158.
[27]王 茜.基于寿命周期的江苏省高速公路中长期养护规划方案研究[D].南京:东南大学,2018.
WANG Qian.Research of long-term pavement maintenance of highway based on life cycle analysis in Jiang-su Province[D].Nanjing:Southeast University,2018.
[28]茅 荃.就地热再生技术在重载SMA沥青路面中的应用评价及效益分析[J].现代交通技术,2016,13(2):9-14.
MAO Quan.Application evaluation and benefit analysis of hot in-place recycling in heavy load SMA asphalt pavement[J].Modern Transportation Technology,2016,13(2):9-14.

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Last Update: 2022-07-20