利用Ⅰ法和贝雷法对间断级配废胎胶粉复合改性沥青混合料WRAC-13的优化设计
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摘要
废胎胶粉改性沥青的配方与混合料级配的匹配性设计是国内外研究的热点。文中参考林绣贤教授的"Ⅰ法"及美国"贝雷法"对以美国德州为代表的第二类间断级配AR-SMA-13进行研究。经大量的室内试验验证,文中提出了新型间断级配WRAC-13,2.36mm~4.75mm含量接近12%,是传统间断级配的2倍,0.075mm通过率可低至5%~8%,油石比大小合适,路用性能优良,施工和易性好,于2016年6月在河南省武陟~云台山高速进行了双向9km试验路的铺筑,总体评价良好。文中对这一成果进行了总结分析,可为断级配废胎胶粉改性沥青混合料的设计和施工提供参考。
Crumb rubber modified asphalt formulation and mixture gradation of matching design are focuses of studies in China and abroad.Referring Professor Lin Xiuxian's Ⅰ-method and American Bailey method,the second class of discontinuous gradation AR-SMA-13 represented by Texas is investigated.A lot of indoor tests are conducted to verify the discontinuous gradation WRAC-13,the 2.36mm~4.75 mm content is close to 12% which is 2times of the traditional intermittent grading,and 0.075 mm passing rate can be as low as 5% ~8%,asphalt aggregate ratio is proper with excellent performance and easy for construction.In June 2016 in Henan Province,paving is made on 9km test section of the Wuzhi to Yuntaishan Highway,and the overall evaluation is good.This article has made a summary to this achievement which provides some reference for the design and the construction of gap graded crumb rubber modified asphalt t mixture.
Crumb rubber modified asphalt formulation and mixture gradation of matching design are focuses of studies in China and abroad.Referring Professor Lin Xiuxian's Ⅰ-method and American Bailey method,the second class of discontinuous gradation AR-SMA-13 represented by Texas is investigated.A lot of indoor tests are conducted to verify the discontinuous gradation WRAC-13,the 2.36mm~4.75 mm content is close to 12% which is 2times of the traditional intermittent grading,and 0.075 mm passing rate can be as low as 5% ~8%,asphalt aggregate ratio is proper with excellent performance and easy for construction.In June 2016 in Henan Province,paving is made on 9km test section of the Wuzhi to Yuntaishan Highway,and the overall evaluation is good.This article has made a summary to this achievement which provides some reference for the design and the construction of gap graded crumb rubber modified asphalt t mixture.
引文
[1]吕伟民.废胎胶粉改性沥青路面技术[M].北京:人民交通出版社,2011:58.
[2]王旭东,李美江.废胎胶粉改性沥青及混凝土应用成套技术[M].北京:人民交通出版社,2008:125-131.
[3]白琦峰,张志祥,曹荣吉.新型断级配废胎胶粉改性沥青混合料设计及性能研究[C]//第四届全国公路科技创新高层论坛论文集:上卷.2008:551.
[4]郝培文.应用贝雷法进行级配组成设计的关键技术[J].长安大学学报:自然科学版,2004,24(6).
[5]林绣贤.高性能沥青混合料设计方法的应用[J].华东公路,1998,(5):59-60.
[6]林绣贤.论Superpave组成配比的特色[J].华东公路,2002,(1):3-7.
[7]林绣贤.沥青混凝土合理级配组成的计算公式[J].华东公路,2003,(1):82-84.
[8]林绣贤.SMA目标配合比快速确定法[J].华东公路,2001,(2):75-76.
[9]JTG F40-2004公路沥青路面施工技术规范[S].
[10]JT/T 797-2011路用废胎硫化橡胶粉[S].
[11]交通部公路科学研究院.废胎胶粉改性沥青及混合料设计施工技术指南[S].2008.
[12]JTG F80/1-2004公路工程质量检验评定标准:第一册土建工程[S].
[2]王旭东,李美江.废胎胶粉改性沥青及混凝土应用成套技术[M].北京:人民交通出版社,2008:125-131.
[3]白琦峰,张志祥,曹荣吉.新型断级配废胎胶粉改性沥青混合料设计及性能研究[C]//第四届全国公路科技创新高层论坛论文集:上卷.2008:551.
[4]郝培文.应用贝雷法进行级配组成设计的关键技术[J].长安大学学报:自然科学版,2004,24(6).
[5]林绣贤.高性能沥青混合料设计方法的应用[J].华东公路,1998,(5):59-60.
[6]林绣贤.论Superpave组成配比的特色[J].华东公路,2002,(1):3-7.
[7]林绣贤.沥青混凝土合理级配组成的计算公式[J].华东公路,2003,(1):82-84.
[8]林绣贤.SMA目标配合比快速确定法[J].华东公路,2001,(2):75-76.
[9]JTG F40-2004公路沥青路面施工技术规范[S].
[10]JT/T 797-2011路用废胎硫化橡胶粉[S].
[11]交通部公路科学研究院.废胎胶粉改性沥青及混合料设计施工技术指南[S].2008.
[12]JTG F80/1-2004公路工程质量检验评定标准:第一册土建工程[S].