SBIR Phase II: Develop an Autonomic-Healing Hot Mix Asphalt

SBIR 第二阶段：开发自主修复热混合沥青

• 批准号: 0848986
• 负责人: Keh Tsao
• 金额: $ 49.95万
• 依托单位: Advanced Engineering Research, LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-01-15 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0848986&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Develop; Autonomic

This Small Business Innovation Research (SBIR) Phase II project will assess the performance of autonomic-healing concrete asphalt through large-scale testing. Each year, about 500 million tons of hot mix asphalt is produced in America, with an average price of $80 per ton. Compared to concrete, hot mix asphalt features lower material cost, but is prone to fatigue cracking when subject to repeated traffic loads. Developing an autonomic-healing concrete asphalt that will actively arrest the microcrack propagation is of great importance and provides an economic savings. The broader/commercial impact of this technology is a cost saving of approximately $340,000 for each mile of pavement construction.

这个小企业创新研究（SBIR）第二阶段项目将通过大规模测试评估沥青混凝土的性能。美国每年生产约5亿吨热拌沥青混合料，平均价格为每吨80美元。与混凝土相比，热拌沥青混合料的材料成本较低，但在反复交通荷载作用下容易产生疲劳开裂。开发一种能有效抑制微裂纹扩展的混凝土沥青是非常重要的，并能节省经济成本。这项技术的更广泛/商业影响是每英里路面建设节省约340，000美元的成本。