[1]孙吉书,冯德瑜?鄢,宋 莹,等.基于响应面法的高黏度复合改性沥青中丁苯橡胶/苯乙烯-丁二烯-苯乙烯嵌段共聚物/胶粉的最优掺量[J].合成橡胶工业,2023,1:39-44.
SUN Ji-shu,FENG De-yu,SONG Ying,et al.Optimum content of styrene-butadiene rubber/styrene-butadiene-styrene block copolymer/rubber powder in high viscosity composite modified asphalt based on Box-Behnken method[J].China synthetic rubber industy,2023,1:39-44.
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基于响应面法的高黏度复合改性沥青中丁苯橡胶/苯乙烯-丁二烯-苯乙烯嵌段共聚物/胶粉的最优掺量(PDF)
《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]
- 期数:
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2023年1期
- 页码:
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39-44
- 栏目:
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- 出版日期:
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2023-01-15
文章信息/Info
- Title:
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Optimum content of styrene-butadiene rubber/styrene-butadiene-styrene block copolymer/rubber powder in high viscosity composite modified asphalt based on Box-Behnken method
- 文章编号:
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1000-1255(2023)01-0039-06
- 作者:
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孙吉书1; 冯德瑜1?鄢; 宋 莹2; 肖 田3
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1. 河北工业大学 土木与交通学院,天津 300401; 2. 中铁十四局集团有限公司,山东 泰安 271000; 3. 天津市政工程设计研究总院有限公司,天津 300051
- Author(s):
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SUN Ji-shu1; FENG De-yu1; SONG Ying2; XIAO Tian3
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1. School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China; 2. China Railway 14th Bureau Group Co Ltd, Taian 271000, China; 3. Tianjin Municipal Engineering Design & Research Institute,Tianjin 300051, China
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- 关键词:
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高黏度复合改性沥青; 响应面法; 排水沥青路面; 道路工程; 丁苯橡胶
- Keywords:
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high viscosity composite modified asphalt; Box-Behnken method; drainage asphalt pavement; road engineering; styrene-butadiene rubber
- 分类号:
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U 414
- DOI:
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DOI:10.19908/j.cnki.ISSN1000-1255.2023.01.0039
- 文献标识码:
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B
- 摘要:
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采用响应面(Box-Behnken)法,以丁苯橡胶(SBR)、苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)和胶粉各自的掺量作为影响因素,以沥青的三大技术指标、60 ℃动力黏度及170 ℃布氏黏度为评价指标建立各自的响应面模型,探讨三种添加剂掺量对沥青技术指标的影响规律,并优选出高黏度复合改性沥青中SBR、SBS和胶粉的最佳掺量。结果表明,分别以质量分数5%、5%和15%的SBS、SBR和胶粉复合而成的高黏度复合改性沥青性能最好,其针入度为4.63 mm,延度为364 mm,软化点为86.5 ℃,60 ℃动力黏度为78 158 Pa·s,170 ℃布氏黏度为2.72 Pa·s,各项指标均高于标准要求。
- Abstract:
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Response surface (Box-Behnken) method was used to establish respective response surface models with the contents of styrene-buta-diene rubber (SBR), styrene-butadiene-styrene block copolymer (SBS) and rubber powder as the influen-cing factors, and the three technical indexes of asphalt, dynamic viscosity 60 ℃ and Brinell viscosity at 170 ℃ as evaluation indexes. The effects of contents of three additives on technical indexes of the asphalt were discussed, and the optimum contents of SBR, SBS and rubber powder in high viscosity composite modified asphalt were selected. The results showed that the high viscosity composite modified asphalt with mass fraction of SBS of 5%, SBR of 5% and rubber powder of 15% respectively had the best performance, its penetration was 4.63 mm, ductility was 364 mm, softening point was 86.5 ℃, dynamic viscosity at 60 ℃ was 78 158 Pa·s, and Brinell viscosity at 170 ℃ was 2.72 Pa·s. All the indexes were higher than the standard requirements.
参考文献/References
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备注/Memo
- 备注/Memo:
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天津市交通运输科技发展计划项目(2022-18)
更新日期/Last Update:
2023-01-15