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Quantitative evaluation on thermal stability and combustion properties of asphalt |
WANG Haiming1, LIU Shengjie1, LIU Weidong2,3, PENG Aihong4 |
(1. College of Civil and Transportation Engineering, Hohai University, Nanjing, Jiangsu 210098, China; 2. Guangxi Key Laboratory of Road Structure and Materials, Guangxi Transportation Science and Technology Co., Ltd., Nanning, Guangxi 530007, China; 3. Research and Development Center on Technologies, Materials and Equipment of Highway Construction and Maintenance Ministry of Transport, Guangxi Transportation Science and Technology Co., Ltd., Nanning, Guangxi 530007, China; 4. Jiangxi Expressway Investment Group Co., Ltd., Nanchang, Jiangxi 330025, China)
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Abstract To quantitatively evaluate the thermal stability and combustion characteristics of asphalt, the tests of constant temperature heating, oxygen index and cone calorimetry were used to obtain mass loss, oxygen index, heat release rate (HRR), total heat release rate (THR) and mass loss rate (MLR) of two asphalts of base asphalt and rubber asphalt. The results show that at the identical temperature, the mass loss, oxygen index, peaks of HRR, THR and MLR of rubber asphalt and the value of mass loss rate increased with the increasing of temperature are higher than those of base asphalt, while the thermal stability and combustion characteristics of rubber asphalt are inferior to base asphalt. Comparing three tests, the cone calorimetry test results are more reliable because of its more parameters, which is recommended to evaluate thermal stability and combustion characteristics of asphalt.
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Received: 05 May 2022
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[1] |
CHEN R, ZHAO R K, LIU Y, et al. Development of eco-friendly fire-retarded warm-mix epoxy asphalt bin-ders using reactive polymeric flame retardants for road tunnel pavements[J]. Construction and Building Materials, DOI: 10.1016/j.conbuildmat.2021.122752.
|
[2] |
REN R, ZHOU H, HU Z, et al. Statistical analysis of fire accidents in Chinese highway tunnels 2000—2016[J]. Tunnelling and Underground Space Technology, 2019,83:452-460.
|
[3] |
CHANG X W, XIAO Y, LONG Y S, et al. Temperature dependency of VOCs release characteristics of asphalt materials under varying test conditions[J]. Journal of Traffic and Transportation Engineering (English Edition), 2022,9(2):280-292.
|
[4] |
阚强,倪照鹏,崔海浩. 自行车馆木赛道的燃烧特性试验研究[J]. 安全与环境学报, 2019,19(4):1247-1251.
|
|
KAN Q, NI Z P, CUI H H. On the burning and combustion special features of the wooden race track in the bicycle hall[J]. Journal of Safety and Environment, 2019,19(4):1247-1251.(in Chinese)
|
[5] |
刘莹. 沥青烟气定量评价方法发展现状[J]. 化工管理, 2019(31): 137-138.
|
|
LIU Y. Development status of quantitative evaluation method of asphalt fume[J]. Chemical Management, 2019(31):137-138.(in Chinese)
|
[6] |
张红章,范卫琴. 沥青路面烟气抑制剂的试验研究[J]. 西部交通科技, 2013(4):5-9,14.
|
|
ZHANG H Z, FAN W Q. The experimental study on smoke suppression of asphalt pavement[J]. Western China Communications Science and Technology,2013(4):5-9,14.(in Chinese)
|
[7] |
TANG N P, ZHANG Z Y, DONG R K, et al. Emission behavior of crumb rubber modified asphalt in the production process[J]. Journal of Cleaner Production, DOI:10.1016/j.jclepro.2022.130850.
|
[8] |
YANG X L, SHEN A Q, LIANG M M, et al. Dynamic flame retardancy and flame mechanism of SBS- modified asphalt containing alumina trihydrate and organic montmorillonite[J]. Construction and Building Materials, DOI:10.1016/j.conbuildmat.2021.125077.
|
[9] |
YANG X L, SHEN A Q, JIANG Y X, et al. Properties and mechanism of flame retardance and smoke suppression in asphalt binder containing organic montmorillonite[J]. Construction and Building Materials, DOI:10.1016/j.conbuildmat.2021.124148.
|
[10] |
李仪. 新型温拌阻燃沥青玛蹄脂混合料(SMA)性能研究[D]. 苏州: 苏州科技大学,2020.
|
[11] |
XIA W J, WANG S W, XU T, et al. Flame retarding and smoke suppressing mechanisms of nano composite flame retardants on bitumen and bituminous mixture[J].Construction and Building Materials, DOI:10.1016/j.conbuildmat.2020.121203.
|
[12] |
郭路燕,吴刚,胡冰川. 基于锥形量热仪试验汽车油品燃烧特性的研究[J]. 汽车实用技术, 2017(15):125-127.
|
|
GUO L Y, WU G, HU B C. The study on combustion characteristic of automobile oil based on cone calorimeter[J]. Automobile Applied Technology, 2017(15):125-127.(in Chinese)
|
[13] |
张晓光,时海军,刘杰,等. 碳纳米管对膨胀阻燃天然橡胶的燃烧和力学性能的影响[J]. 材料导报, 2022,36(5):237-242.
|
|
ZHANG X G, SHI H J, LIU J, et al. Effect of carbon nanotubes on flammability and mechanical properties of intumescent flame retardant natural rubber[J]. Materials Review, 2022,36(5):237-242. (in Chinese)
|
[14] |
夏文静. 隧道火灾下沥青路面燃烧行为及复合阻燃剂协同抑制机理[D]. 南京:南京林业大学,2020.
|
[15] |
邢东,李坚,王思群. 基于CONE法的热处理杨木燃烧特性研究[J]. 林产工业, 2020,57(3):15-18,24.
|
|
XING D, LI J, WANG S Q. Research on combustion performance of heat-treated poplar by CONE[J]. China Forest Products Industry, 2020,57(3):15-18,24.(in Chinese)
|
|
|
|