Changsha Huanghua Airport Runway Overlay of Asphalt Concrete Mixture Optimization
SMA asphalt mixture is the old airport pavement overlay of asphalt concrete most commonly used technical solutions, combined with the previous runway coagulation Concrete Asphalt design, from the perspective of Asphalt Mixture Design. Laboratory produced using different asphalt modifier, additives (fiber, anti-rutting agent) to form several SMA asphalt mixture. Laboratory tests are to be determined each program's conventional indicators, such as pavement rutting performance. Analysis of test results, the final mixture is to be determined the optimal program. The results showed that SBS star relative linear modifier better road performance, the selection of PAN fiber than the lignin additive mixture of additives on the adhesion, crack resistance, resistance to water damaging have a larger increase, which for the SMA in the application of the runway asphalt concrete pavement to provide a basis for improvement.
Evaluation of Recycled Projects for Performance
iii IMPLEMENTATION STATEMENT iv LIST OF TABLES vi LIST OF FIGURES vi
Integrating Al with NiO nano honeycomb to realize an energetic material on silicon substrate
Nano energetic materials offer improved performance in energy release, ignition, and mechanical properties compared to their bulk or micro counterparts. In this study, the authors propose an approach to synthesize an Al/NiO based nano energetic material which is fully compatible with a microsystem. A two-dimensional NiO nano honeycomb is first realized by thermal oxidation of a Ni thin film deposited onto a silicon substrate by thermal evaporation. Then the NiO nano honeycomb is integrated with an Al that is deposited by thermal evaporation to realize an Al/NiO based nano energetic material. This approach has several advantages over previous investigations, such as lower ignition temperature, enhanced interfacial contact area, reduced impurities and Al oxidation, tailored dimensions, and easier integration into a microsystem to realize functional devices. The synthesized Al/NiO based nano energetic material is characterized by scanning electron microscopy, X-ray diffraction, differential thermal analysis, and differential scanning calorimetry.