Self-healing Properties of Bio-oil Regenerated Asphalt

doi:10.3969/j.issn.1674-0696.2018.08.06

Abstract

Abstract: In order to improve the self-healing property of asphalt and improve the reaction energy barrier of asphalt in the process of self-healing,the bio-oil regenerated asphalt extracted by waste wood was used to evaluate the self-healing property of the bio-oil regenerated asphalt from energy and chemical structure perspective, through the dynamic shear rheometer (DSR) and molecular simulation technology.The reaction energy barrier and healing index of bio-oil regenerated asphalt are 32.52KJ/mol and 0.596 respectively during the self-healing process of modified asphalt when the addition of bio-oil is 8.0wt%. The results show that the bio-oil can decrease the reaction energy barrier and improve the fatigue lifetime, healing index, and self-healing property of the asphalt.The variation of steric configuration of asphaltenes and resins is not big, while that of the steric configuration of saturates and aromatics is great; the morphology of saturates and aromatics gets together during the self-healing process.The influence of bio-oil on the steric configuration of asphalt molecules is significant.

Key words: highway engineering, bio-oil, regenerated asphalt, self-healing property, steric configuration, molecular simulation

摘要： 为提高沥青的自愈合性能，改善沥青在自愈合过程中的反应能垒，利用从废旧木材中提取出来的生物质油再生沥青，借助动态剪切流变仪(DSR)及分子模拟技术从能量角度及化学结构方面评价了生物质油再生沥青的自愈合性能。当生物质油的添加量为8.0wt%时，改性沥青自愈合过程中的反应能垒为32.52 kJ/mol；愈合指数为0.596。结果表明：生物质油可降低沥青的反应能垒，提高沥青的疲劳寿命、愈合指数及自愈合性能。生物质油再生沥青的自愈合过程中，沥青质和胶质分子的空间构型变化不大，饱和分和芳香分分子空间构型变化较大，相互之间呈团聚之态，生物质油对沥青分子的空间构型的影响显著。

关键词: 道路工程, 生物质油, 再生沥青, 自愈合性能, 空间构型, 分子模拟

CLC Number:

U 414

BAI Aiming1, ZHOU Xinxing2. Self-healing Properties of Bio-oil Regenerated Asphalt[J]. Journal of Chongqing Jiaotong University(Natural Science), 2018, 37(08): 29-33.

白爱明1，周新星2. 生物质油再生沥青的自愈合性能研究[J]. 重庆交通大学学报（自然科学版）, 2018, 37(08): 29-33.

References

［1］朱洪洲，范世平，卢章天.基于DSR Time-Sweep的沥青常应变疲劳演化规律分析［J］.重庆交通大学学报(自然科学版)，2018，37(2)：
29-34.
ZHU Hongzhou, FAN Shiping, LU Zhangtian. Fatigue evolution law of asphalt under constant strain based on DSR time-
sweep［J］.Journal of Chongqing Jiaotong University(Natural Science), 2018, 37(2): 29-34.
［2］杨彦海，董帅，侯博，等.基于聚类分析法的沥青路面气候分区研究［J］.重庆交通大学学报(自然科学版)，2018，37(1)：40-45.
YANG Yanhai, DONG Shuai, HOU Bo, et al. Climate zoning for asphalt pavement based on cluster analysis method［J］.
Journal of Chongqing Jiaotong University(Natural Science), 2018, 37(1): 40-45.
［3］ SUN Daquan, LIN Tianban, ZHU Xingyi, et al. Indices for self-healing performance assessments based on molecular
dynamics simulation of asphalt binders［J］. Computational Materials Science, 2016, 114: 86-93.
［4］ DAI Qingli, WANG Zigeng, HASAN M R M. Investigation of induction healing effects on electrically conductive
asphalt mastic and asphalt concrete beams through fracture-healing tests［J］.Construction & Building Materials, 2013,
49(12): 729-737.
［5］ TANG Jin, LIU Quantao, WU Shaopeng, et al. Investigation of the optimal self-healing temperatures and healing
time of asphalt binders［J］. Construction & Building Materials, 2016, 113: 1029-1033.
［6］ LIU Quantao, WU Shaopeng, SCHLANGEN E. Induction heating of asphalt mastic for crack control［J］. Construction
& Building Materials, 2013, 41(41): 345-351.
［7］ SU Junfeng, QIU Jian, SCHLANGEN E, et al. Experimental inves-
tigation of self-healing behavior of bitumen/microcapsule composites by a modified beam on elastic foundation method［
J］. Materials and Structures, 2015, 48(12): 4067-4076.
［8］ RAMAN N A A, HAININ M R, HASSAN N A, et al. A review on the
application of bio-oil as an additive for asphalt［J］. Jurnal Teknologi, 2015, 72(5): 105-110.
［9］ SUN Bin, ZHOU Xinxing. Diffusion and rheological properties of asphalt modified by bio-oil regenerate derived
from waste wood［J］. Journal of Materials in Civil Engineering, 2018, 30(2): 74-78.
［10］ TANG Sheng, WILLIAMS R C. Antioxidant effect of bio-oil additive ESP on asphalt binder［C］//Proceedings of the
2009 Midcontinent Transportation Research Symposium. Ames: Iowa State University,
2009.
［11］ RAOUF M A, WILLIAMS R C. Temperature and shear susceptibility of a non-petroleum binder as a pavement material
［J］. Journal of the Transportation Research Board, 2011, 2018(1): 9-18.
［12］ ZHANG Ran, WANG Hainian, GAO Junfeng, et al. High temperature performance of SBS modified bio-asphalt［J］.
Construction and Building Materials, 2017, 144(30): 99-105.
［13］徐辰，何兆益，吴文军，等.沥青自愈合性能在不同影响因素下的评价［J］.中外公路，2014，34(2)：274-278.
XU Chen, HE Zhaoyi, WU Wenjun, et al. Evaluation on the self-healing property of asphalt with different factors［J］.
Journal of China & Foreign Highway, 2014, 34(2): 274-278.
［14］ SANTAGATA E, BAGLIERI O, TSANTILIS L, et al. Evaluation of self healing properties of bituminous binders taking
into account steric hardening effects［J］. Construction & Building Materials, 2013, 41(41): 60-67.
［15］ HUANG Weidong, LV Quan, XIAO Feipeng. Investigation of using binder bond strength test to evaluate adhesion and
self-healing properties of modified asphalt binders［J］. Construction & Building Materials, 2016, 113: 49-56.
［16］ SUN Daquan, HU Jinlong, ZHU Xingyi. Size optimization and self-healing evaluation of microcapsules in asphalt
binder［J］. Colloid and Polymer Science, 2015, 293(12): 3505-3516.
［17］周颜，李佩林.基于分子模拟技术的沥青自愈合性能研究［J］.山西建筑，2013，39(6)：83-85.
ZHOU Yan, LI Peilin. Research on self-healing property based on modeling technique［J］. Shanxi Architecture, 2013,
39(6): 83-85.
［18］ RINAIDI R, JASTRZEBSKI R, CLOUGH M T, et al. Paving the way for lignin valorisation: recent advances in bio-
engineering, bio-refining and catalysis［J］. Angewandte Chemie International Edition, 2016, 55(29): 8164-8168.

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