1. School of Civil Engineering, Tongji University, Shanghai 200092, China;
2. Tianjin Municipal Engineering Design & Research Institute, Tianjin 300051, China;
3. School of Highway, Chang'an University, Xi'an Shaanxi 710064, China
Study on the Preparation Road Performance of New Inorganic Fire-retardant-modified Asphalt
HE Hai1,2, WANG Xin-qi3, LIU Zhi-sheng3, WANG Xin-qi2
1. School of Civil Engineering, Tongji University, Shanghai 200092, China;
2. Tianjin Municipal Engineering Design & Research Institute, Tianjin 300051, China;
3. School of Highway, Chang'an University, Xi'an Shaanxi 710064, China
摘要To develop a purely inorganic fire-retardant-modified asphalt, we selected highly fire-retardant materials that have low-carbon content, non-polluting properties, and are inexpensive as fire retarder of asphalt. The optimal preparation technique for inorganic fire-retardant-modified asphalt is determined on the basis of three indexes of modified asphalts. First, limiting oxygen index and smoke density tests are conducted to investigate the influencing regularity of the dosage and type of inorganic fire retarder on fire and smoke retardant properties of inorganic fire-retardant-modified asphalt. Second, the TG test is used to explore the fire-retardant mechanism of inorganic fire-retardant-modified asphalt. Third, by testing the viscosity, anti-aging property, and adhesion of the inorganic fire-retardant-modified asphalt, the influencing regularity of inorganic fire-retardant dosage on the road performance of the modified asphalt is studied. Finally, the economic benefits of the inorganic fire-retardant-modified asphalt are analyzed. Results showed the following: (1) the inorganic fire retarder has good fire and smoke retardant properties and can meet the requirements of the corresponding national specifications; (2) the fire-retardant property of the inorganic fire-retardant-modified asphalt can be increased significantly by increasing the dosage of the fire retarder, and the smoke retarder can improve the fire-retardant property with its functions (these properties overcome the contradictory shortcomings between fire and smoke retardant properties); (3) the effect of the fire retardant mainly depends on the decomposition and release of water from the inorganic fire retarders, and the absorption effect of the layered metal oxide; (4) with the increasing dosage of the inorganic fire retarder, the degree of penetration and ductility of the inorganic fire-retardant-modified asphalt decreases, the softening point and viscosity increase, and the penetration ratio and viscosity become larger; (5) the addition of the inorganic fire retarder does not affect the adhesion of SBS-modified asphalt. The inorganic fire-retarder has excellent economic benefits and is suitable for promotion and application in fire-retardant asphalt mixtures for pavements.
Abstract：To develop a purely inorganic fire-retardant-modified asphalt, we selected highly fire-retardant materials that have low-carbon content, non-polluting properties, and are inexpensive as fire retarder of asphalt. The optimal preparation technique for inorganic fire-retardant-modified asphalt is determined on the basis of three indexes of modified asphalts. First, limiting oxygen index and smoke density tests are conducted to investigate the influencing regularity of the dosage and type of inorganic fire retarder on fire and smoke retardant properties of inorganic fire-retardant-modified asphalt. Second, the TG test is used to explore the fire-retardant mechanism of inorganic fire-retardant-modified asphalt. Third, by testing the viscosity, anti-aging property, and adhesion of the inorganic fire-retardant-modified asphalt, the influencing regularity of inorganic fire-retardant dosage on the road performance of the modified asphalt is studied. Finally, the economic benefits of the inorganic fire-retardant-modified asphalt are analyzed. Results showed the following: (1) the inorganic fire retarder has good fire and smoke retardant properties and can meet the requirements of the corresponding national specifications; (2) the fire-retardant property of the inorganic fire-retardant-modified asphalt can be increased significantly by increasing the dosage of the fire retarder, and the smoke retarder can improve the fire-retardant property with its functions (these properties overcome the contradictory shortcomings between fire and smoke retardant properties); (3) the effect of the fire retardant mainly depends on the decomposition and release of water from the inorganic fire retarders, and the absorption effect of the layered metal oxide; (4) with the increasing dosage of the inorganic fire retarder, the degree of penetration and ductility of the inorganic fire-retardant-modified asphalt decreases, the softening point and viscosity increase, and the penetration ratio and viscosity become larger; (5) the addition of the inorganic fire retarder does not affect the adhesion of SBS-modified asphalt. The inorganic fire-retarder has excellent economic benefits and is suitable for promotion and application in fire-retardant asphalt mixtures for pavements.
基金资助:Supported by the Tianjin Municipal Highway Administration of Science and Technology Projects (No.2012-23)
通讯作者:
HE Hai, E-mail:hehaiccl@263.net
E-mail: hehaiccl@263.net
引用本文:
贺海, 王朝辉, 刘志胜, 王新岐. 新型无机阻燃改性沥青的制备与路用性能研究[J]. Journal of Highway and Transportation Research and Development, 2015, 9(1): 14-23.
HE Hai, WANG Xin-qi, LIU Zhi-sheng, WANG Xin-qi. Study on the Preparation Road Performance of New Inorganic Fire-retardant-modified Asphalt. Journal of Highway and Transportation Research and Development, 2015, 9(1): 14-23.
[1] QIN Xian-tao, CHEN Shuan-fa, ZHU Si-yue, et al.Composite Flame Retardant Materials with Mineral Fiber for Asphalt Pavement and Their Thermogravimetric Behaviors[J].Journal of Highway and Transportation Research and Development, 2013, 30(12):7-14.(in Chinese)
[2] JI Lun, TAN Yi-qiu, ZHANG Lei, et al. Research on Application of Flame Retardant Technique in Asphalt Pavement in Highway Tunnel[J]. Journal of Highway and Transportation Research and Development, 2010, 27(3):23-27. (in Chinese)
[3] YANG Yan-hai, NAN Xue-feng, CHEN Xiao-xue. Performance Analysis and Evaluation on Environmental Type Flame-retarded Asphalt[J]. Highway, 2012(3):182-186. (in Chinese)
[4] REN Fan, ZHANG Xiao-jiao, SUN Hai-bin, et al.Research Status and Development Trend of Flame-retardant Asphalt at Home and Abroad[J]. Journal of Chang'an University:Natural Science Edition, 2012, 32(6):1-10.(in Chinese)
[5] LI Zhi-huai, PANG Biao. Development of Flame-retarded Asphalt for High Grade Highway Tunnel[J]. Journal of China & Foreign Highway, 2012, 32(4):237-240. (in Chinese)
[6] HE Li-ping, SHEN Ai-qin, LIANG Jun-lin, et al. Flame Retardant and Pavement Performance of Flame Retardant Asphalt and Asphalt Mixture[J]. Journal of Highway and Transportation Research and Development, 2013, 30(12):15-22. (in Chinese)
[7] NAN Xue-feng, LIAO Ke-jian. Development and Performance Evaluation of Flame-Retardant Modified Asphalt in Seasonal Frost Region[J]. highway, 2011, (4):181-184. (in Chinese)
[8] ZHANG Rui, HUANG Xiao-ming. Development and Performance Test of Fire Resistant Asphalt without Halogen[J]. Journal of Highway and Transportation Research and Development,2007,24(11):40-43. (in Chinese)
[9] LI Li-han, ZOU Xiao-long, CHEN Chun-yu. Study on Oxygen Index and Road Performance of Flame Retardant Asphalt with Combined Additives Added[J]. Journal of Building Materials,2013,16(1):76-80. (in Chinese)
[10] DING Qing-jun, SHEN Fan, HUANG Shao-long. Flameproof Road Surface of Open-graded Asphalt Friction Course Based on ATH Flame-retarding System[J].Journal of Central South University:Science and Technology Edition, 2009, 40(4):932-939. (in Chinese)
[11] SHI Xin, WANG Chao-hui, LI Yan-wei, et al. Pavement Performance Analysis of Asphalts Modified by Different Types of Tourmalines[J]. Journal of Traffic and Transportation Engineering, 2013, 13(2):17-24. (in Chinese)
[12] HU S M, WANG C H, DU Q L, et al. Research on Aging Properties of Tourmaline Modified Asphalt[J]. Advanced Materials Research, 2012, 535:1715-1718.
[13] FANG Xiao-rui, SHEN Feng, SHEN Fan, et al. Integrated Research on Function and Structure of Fire-retardant De-noising and Anti-sliding Asphalt Pavement for Tunnel[J]. Journal of Wuhan University of Technology, 2010, 32(4):162-168. (in Chinese)
[14] XU Tao, HUANG Xiao-ming, XIE Jun. Analysis of Flame-retarded Performance of Magnesium Hydroxide Based on Bubble Growth Kinetics[J]. Journal of Southeast University:Natural Science Edition, 2008, 38(2):274-278. (in Chinese)
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2015, Vol. 9 
