STTR Phase I: Development of a Three Dimensional Paver

STTR 第一阶段：三维摊铺机的开发

• 批准号: 2035768
• 负责人: Hesham Ali
• 金额: $ 25.6万
• 依托单位: Sustainable Road Engineering Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-12-15 至 2022-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2035768&HistoricalAwards=false
• 关键词: STTR; Phase; Development; Three; Dimensional

The broader impact/commercial potential of this innovation is significant. The US has more than 3 million miles of paved roads. Roughly 3.5% of the network is repaved annually using a free-floating screed invented in 1930. In the past 5 years, the paving industry in the US generated an average annual revenue of $25 billion. 3D paving lends itself to many possibilities, including correcting surface problems by applying a thin, variable-thickness lift, integrating color designs and striping, and imbedding objects such as sensors and solar panels in the pavement. If this process leads to a 20% cost reduction (conservative estimate) a cost savings of $5 billion per year could be realized. This Small Business Technology Transfer (STTR) Phase I project evaluates the feasibility of 3D paving. There are two main technical challenges: 1) the ability to apply road surface mixtures using a nozzle (This requires engineering the paving mixture as well as the nozzle) and 2) the ability to control the nozzle position in three dimensions, independent of the vehicle frame and road elevation. The project team will develop mix design parameters to enable nozzle application, a nozzle design to enable paving speed of 20 ft./min., a 3D nozzle control system to apply a surface independent of existing road profile, vehicle requirements, and a commercial feasibility study.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项创新的更广泛的影响/商业潜力是重要的。 美国拥有超过300万英里的铺装道路。 大约3.5％的网络每年使用1930年发明的自由浮动屏幕进行重新铺设。在过去的5年中，美国的铺路业平均每年收入为250亿美元。 3D铺路为许多可能性带来了许多可能性，包括通过施加薄，可变的厚度提升，整合颜色设计和条纹以及嵌入人行道中的传感器和太阳能电池板等物体来纠正表面问题。如果此过程导致20％的成本降低（保守估计）每年节省50亿美元的成本。 这个小型企业技术转移（STTR）I期项目评估了3D铺路的可行性。 有两个主要的技术挑战：1）使用喷嘴施加道路表面混合物的能力（这需要工程铺路混合物以及喷嘴）和2）2）能够在三个维度中控制喷嘴位置，而与车辆框架和道路高程无关。 The project team will develop mix design parameters to enable nozzle application, a nozzle design to enable paving speed of 20 ft./min., a 3D nozzle control system to apply a surface independent of existing road profile, vehicle requirements, and a commercial feasibility study.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.