| ATH阻燃改性沥青SMA路用性能研究 |
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| 引用本文： | 余剑英,程松波,吴冬生,毛峰.ATH阻燃改性沥青SMA路用性能研究[J].公路,2008(1):184-187. |
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| 作者姓名： | 余剑英 程松波 吴冬生 毛峰 |
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| 作者单位： | 1. 武汉理工大学硅酸盐材料工程教育部重点实验室,武汉市,430070
2. 湖北省十漫高速公路建设指挥部,十堰市,442011 |
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| 基金项目： | 湖北省交通厅科技攻关项目 |
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| 摘 要： | 采用氢氧化铝(ATH)为阻燃剂,研究了ATH掺量对SBS改性沥青的阻燃性能及其SMA混合料路用性能的影响。结果表明:ATH明显提高了SBS改性沥青的阻燃性能,当ATH用量为沥青量的20%时,极限氧指数可达到23.7%。随着ATH用量的增加,SMA混合料的车辙动稳定度明显提高,马歇尔稳定度变化很小,水稳定性略有降低,在ATH掺量不大于沥青量的40%时,混合料的路用性能均可满足《公路沥青路面施工技术规范》(JTGF40-2004)的要求。
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| 关 键 词： | 道路工程 阻燃SBS改性沥青 氢氧化铝 阻燃性能 混合料 路用性能 |
| 文章编号： | 0451-0712（2008）01-0184-04 |
| 收稿时间： | 2007-08-24 |
| 修稿时间： | 2007年8月24日 |
A Study on Road Performance of SMA Modified Bitumen Mixtures Adding ATH Flame-Retardant |
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| YU Jian-ying,CHENG Song-bo,WU Dong-sheng,MAO Feng.A Study on Road Performance of SMA Modified Bitumen Mixtures Adding ATH Flame-Retardant[J].Highway,2008(1):184-187. |
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| Authors: | YU Jian-ying CHENG Song-bo WU Dong-sheng MAO Feng |
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| Abstract: | Effects of aluminium hydroxide(ATH) on flame-resistant property of SBS modified bitument and road performance of stone matrix asphalt(SMA) are investigated.The results show that flame-resistant property of the modified bitumen is obviously improved by adding ATH.Limited oxygen index of the modified bitumen with 20% ATH is 23.7%.The dynamic stability of SMA is increased and Marshall stability and water stability are decreased with the increase of ATH content.When ATH content is slower than 40% of bitumen content,the pavement properties of SMA can meet the demands of "Technical Specification for Construction of Highway Asphalt Pavements"(JTG F40-2004). |
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| Keywords: | pavement engineering flame-retarded SBS modified asphalt aluminium hydroxide flame-resistant property asphalt mixture road performance |
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