Effect of Crumb Rubber Particle Size and Content on Properties of Crumb Rubber Modified (CRM) Asphalt

Effect of Crumb Rubber Particle Size and Content on Properties of Crumb Rubber Modified (CRM) Asphalt
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胶粉粒径和含量对胶粉改性(CRM)沥青性能的影响

DOI:
10.4028/www.scientific.net/amm.99-100.955
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发表时间:
2011-09
期刊:
Applied Mechanics and Materials
影响因子:
--
通讯作者:
Cui Xinzhuang
Cui Xinzhuang
中科院分区:
其他
文献类型:
--
作者:
Cao Weidong;Liu Shutang;Cui Xinzhuang

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通过室内试验,研究了不同粒径(20目、40目、60目、80目、120目)和掺量(占CRM沥青总量的10%、15%和20%)的胶粉对CRM沥青性能的影响以及CRM沥青性能随反应温度和反应时间的变化规律。结果表明,当橡胶粉的粒径为80目、掺量为15%时,CRM沥青的性能最佳。反应温度和反应时间对CRM沥青的性能有很大影响。当反应温度高于200℃,反应时间大于60min时,随着反应温度的升高和反应时间的延长,CRM沥青的粘度显著下降。当高温反应时间超过4h时,CRM沥青的性能开始老化。根据试验结果,对CRM沥青的生产和应用提出了几点建议。
Effects of crumb rubber of different particle sizes (20mesh, 40mesh, 60mesh, 80mesh and120mesh) and contents (10%, 15% and 20% by weight of the total of CRM asphalt) on the properties of CRM asphalt and change rule of performance of CRM asphalt with reaction temperature and time were studied in laboratory. The results indicate that CRM asphalt has the best performance when the particle size of crumb rubber used is 80 mesh and the content is 15%. The performance of CRM asphalt is strongly depended on reaction temperature and time. When reaction temperature is higher than 200°C and time more than 60 minutes, the viscosity of CRM asphalt significantly decline with reaction temperature rising and time delaying. The performance of CRM asphalt starts aging when reaction time more than 4 hours at high temperature. Based on test results, some suggestions for production and application of CRM asphalt are put forward.
DOI: 10.3141/1962-09
发表时间: 2006
影响因子: 1.7
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