Water Stability of Warm Recycled Asphalt Mixture

doi:10.3969/j.issn.1674-0696.2015.01.13

Abstract

Abstract: Using freeze-thaw splitting test method, research the water stability change rule of warm recycled asphalt mixture with different RAP（reclaimed asphalt pavement materials）content, short-term aging of warm recycled asphalt mixture and different molding temperature. Study results show that: the water stability of warm recycled asphalt mixture waken with the increase of RAP content, getting stronger after short-term aging. In order to ensure the road performance, molding temperature of warm recycled asphalt mixture can reduce 25 ℃~30 ℃ at most when RAP content is within 40%, 10 ℃ when the content is 50%.

Key words: road engineering, warm recycled, asphalt mixture, water stability

摘要： 采用冻融劈裂试验，研究不同RAP（回收沥青路面材料）掺量、再生混合料的短期老化和不同成型温度下温拌再生沥青混合料水稳定性的变化。研究结果表明：温拌再生混合料的水稳定性随着RAP掺量的增加而下降，经过短期老化后的温拌再生混合料水稳定性有所增强；为保证路用性能，温拌再生沥青混合料中RAP掺量在40%以内时的成型温度最大可降低25～30 ℃，掺量为 50%时最大可降温10 ℃。

关键词: 道路工程, 温拌再生, 沥青混合料, 水稳定性

CLC Number:

U416.217

Cheng Peifeng, Han Yongqiang. Water Stability of Warm Recycled Asphalt Mixture[J]. Journal of Chongqing Jiaotong University(Natural Science), 2015, 34(1): 60-63.

程培峰，韩永强. 温拌再生沥青混合料水稳性能研究[J]. 重庆交通大学学报（自然科学版）, 2015, 34(1): 60-63.

References

［1］ Chen J S,Wang C H,Huang C C.Engineering properties of bituminous mixtures blended with second reclaimed asphalt pavements (RAP)［J］.Road Materials and Pavement Design,2009,10:129-149.
［2］孙吉书,肖田,杨春风,等.温拌再生沥青混合料的路用性能研究［J］.重庆交通大学学报:自然科学版,2011,30(2):250-253.
Sun Jishu,Xiao Tian,Yang Chunfeng,et al.On properties of warm mix recycled asphalt mixture in highway ［J］.Journal of Chongqing Jiaotong University:Natural Science,2011,30(2):250-253.
［3］廉向东,陈拴发,付其林,等.温拌沥青混合料路用性能研究［J］.长安大学学报:自然科学版,2010,30(6):11-15.
Lian Xiangdong,Chen Shuanfa,Fu Qilin,et al.Research on pavement performance of warm mix asphalt ［J］.Journal of Chang’an University:Natural Science Edition,2010,30(6):11-15.
［4］陈静云,马强.温拌-再生改性沥青SMA混合料性能研究［J］.沈阳建筑大学学报:自然科学版,2012,28(2):286-290.
Chen Jingyun,Ma Qiang.Properties of warm mix-recycled modified asphalt SMA mixture ［J］.Journal of Shenyang Jianzhu University:Natural Science,2012,28(2):286-290.
［5］杨帆,孙波,王延斌,等.温拌工艺在大比例厂拌热再生中的应用［J］.公路交通科技:应用技术版,2011(3):103-105.
Yang Fan,Sun Bo,Wang Yanbin,et al.Application of warm mix technology in hot mix plant recycling ［J］.Journal of Highway and Transportation Research and Development:Application Technology,2011(3):286-290.
［6］谢翠玲,张新,苏明,等.温拌沥青混合料水稳定性研究［J］.公路交通科技:应用技术版,2011(9):13-15.
Xie Cuiling,Zhang Xin,Su Ming,et al.Research on water stability of warm mix-asphalt ［J］.Journal of Highway and Transportation Research and Development:Application Technology,2011(9):13-15.
［7］刘红瑛,戴经梁.水位对沥青混合料水稳定性的影响［J］.长安大学学报:自然科学版,2004,24(4):18-21.
Liu Hongying,Dai Jingliang.Effect of water level on moisture stability of asphalt mixture ［J］.Journal of Chang’an University:Natural Science Edition,2004,24(4):18-21.
［8］刘唐志,朱洪洲,李佳坤,等.温拌再生沥青混合料水稳定性研究［J］.武汉理工大学学报,2013,35(3):54-58.
Liu Tangzhi,Zhu Hongzhou,Li Jiakun,et al.Research on water stability of warm-recycled asphalt mixture ［J］.Journal of Wuhan University of Technology,2013,35(3):54-58.
［9］崔普查.热再生沥青混合料长期水稳定性分析［J］.山西建筑,2009,35(33):177-178.
Cui Pucha.Analysis of long-term water stability of thermal regeneration asphalt mixture ［J］.Shanxi Architecture,2009,35(33):177-178.
［10］季节,徐世法.再生沥青混合料水稳定性能的对比分析［J］.石油沥青,2008,22(5):43-46.
Ji Jie,Xu Shifa.Analysis on water stability of recycling asphalt mixture ［J］.Petroleum Asphalt,2008,22(5):43-46.

[1]	ZHAO Wei. Experimental Study on Performance of Nano-montmorillonite/SBS Composite Mixed Modified Asphalt [J]. Journal of Chongqing Jiaotong University(Natural Science), 2021, 40(07): 118-122.
[2]	WANG Qingzhou1, SUN Chao1, TAN Aolong2, WEI Lianyu1. Experimental Study on Expansion Force of Expansive Remolded Mudstone [J]. Journal of Chongqing Jiaotong University(Natural Science), 2021, 40(04): 112-117.
[3]	WANG Min1,2, SHANG Fei1, XIAO Li1, BAO Guangzhi3. Composite Beam Fatigue Damage Law of Steel Bridge Deck Gussasphalt Pavement [J]. Journal of Chongqing Jiaotong University(Natural Science), 2021, 40(03): 84-88.
[4]	LI Shenglian1, LIANG Naixing2, ZENG Sheng2. Influence of Acquisition Methods on Segregation Evaluation of Digital Image of Asphalt Mixture [J]. Journal of Chongqing Jiaotong University(Natural Science), 2021, 40(03): 103-107.
[5]	ZHOU Jiankun1, CAO Yuanwen2, WEN Yongjie2, ZHAO Jiang1,BAI Liping3. Digital Image Differences of Paved Pavement at Different Heights [J]. Journal of Chongqing Jiaotong University(Natural Science), 2021, 40(02): 89-94.
[6]	ZHOU Gang1, JIANG Fangting1,2, WANG Kunsheng3. Quantitative Evaluation Method of Adhesion Property of Cold Patch Asphalt and Aggregate [J]. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(12): 88-93.
[7]	ZENG Sheng1，LIANG Naixing1,YANG Suizhong2,TIAN Xiaofeng2. Application of HSI Color Space in Image Processing of Asphalt Mixture under Low Illumination Conditions [J]. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(11): 86-91.
[8]	SONG Jinhua, XIN Pengfei. Geometric Characteristics of Asphalt Pavement Deflection Basin under FWD Load [J]. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(11): 92-98.
[9]	ZHOU Shuiwen1, 2, 3, ZHANG Xiaohua1, 2, 3, ZHANG Rong1, 2, 3, ZHAO Kun4, WANG Jianzhuang1,2,3. Experimental Analysis of Influencing Factors on Ice-Melting of Loop Heat Pipe [J]. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(10): 85-92.
[10]	WANG Tao1,2, XU Gongyi3, CHANG Cheng1,2, XIAO Li1,2, WANG Min1,2. Three-Dimension Simulation Mechanical Analysis of Deck Pavement of Long-Span and Low-Stiffness Steel Bridge [J]. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(09): 67-73.
[11]	ZHANG Hang1, 2, LING Tianqing1, WANG Xuewu2. Durability of Hybrid Fiber Modified Asphalt Mixture under Salt Freeze-Thaw Cycles [J]. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(09): 88-96.
[12]	LUO Rong1,2, HOU Qiang1,2, LIU Hanqi1,2. Effect of Humidity on Viscoelastic Properties of Asphalt Mixture [J]. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(08): 77-83.
[13]	ZHU Hongzhou1,2, YUAN Hai2, LIU Yufeng2, FAN Shiping3, DING Yongjie2. Microwave Self-healing Properties of Macro-facture in SBS Modified Asphalt Mixture [J]. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(08): 84-89.
[14]	CAO Yuanwen, WANG Dong, WANG Jianwen, ZHOU Hua. Influence Analysis of the Damage of the Cement Concrete Pit Pavement on Dynamic Load of Heavy-Load Vehicles [J]. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(08): 95-100.
[15]	ZHAO Yi1, CHEN Chao2, XIANG Yangkai1, LI Xiao3, LI Tongbin1. Determination Method and Application of Metal Elements in Steel Slag Based on Inductively Coupled Plasma Atomic Emission Spectrometry [J]. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(08): 113-118.