Asphalt 7: Heat
Asphalt 7: Heat is the seventh member in the entire series, but the charm and the heat have never been extinguished in online activities. Players will also have broad access to new generation cars with high performance to experience their quintessence or greatness in the exciting races.
Asphalt 7: Heat
Asphalt 7: Heat for Windows 8 is an arcade driving game of the highest standard. The gameplay is in-depth and convincing, and the different game modes satisfy the needs of any gamer who's a fan of racing. Are you ready to burn the asphalt and be the king of speed?
Activated carbon, one of carbon-based materials with developed pore structure and favourable microwave radiation absorption, was added in asphalt to investigate its possibility as microwave heating enhancement in asphalt materials. Effect of activated carbon powder (ACP) on mechanical performance of asphalt mastic was firstly studied. Mechanical tests including multiple stress creep and recovery (MSCR) test, temperature sweep test, time sweep test, and linear amplitude sweep (LAS) test were conducted to evaluate rutting resistance, liner viscosity, and fatigue resistance. Interactions between fillers and asphalt were then observed by scanning electron microscope (SEM). Besides, microwave heating capacity of asphalt mastic with different amount of ACP was investigated to ensure its potential in microwave heating acceleration. Cost of activated carbon powder in asphalt mixture was roughly estimated and compared with other microwave absorbing materials. Results showed that addition of ACP slightly influenced physical properties of mastic, permanent deformation at high temperature of asphalt mastic decreased and creep recovery increased. Increase of complex shear modulus and rutting factor suggested that asphalt was stiffened by adding ACP and rutting resistance was also improved. Fatigue resistance was improved and fatigue life was extended most when ACP replacement was 100% volume fraction of fillers. Wetting surface between ACP and asphalt was smooth with less folds and voids which means it had good contact and interaction with asphalt. Mastic with larger amount of ACP had a quick temperature rise under microwave radiation and heating rate (HR) defined as temperature increment per seconds was applied. It is found that surface temperature increased firstly fast and then slowly when dividing heating process as two stage. Results basically ensured the feasibility of ACP in enhancing mechanical performance and microwave heating capacity of asphalt materials. The extra cost from ACP is relatively lower. Partial substitution of ACP in fillers and reused ACP from pollution treatment factories may further reduce the amount and cost from ACP application.
Asphalt concrete is one of the most widely applied materials in road construction, and its appropriate behavior comes from reasonable combination of asphalt binder, aggregates and filler from standpoint of composite material theory . Among them, filler plays an important role in stiffening asphalt and increasing mechanical performance [2-4]. Asphalt mastic, association of filler and asphalt accounting for 5wt%7wt% of asphalt mixture, strengthens the bond between aggregates [5,6] and further prolongs serviceability of pavement. With the aim of improving mechanical performance and durability, some attempts have been made on alternative fillers. Eco-friendly fillers such as fly ash, diatomite, rice husk ash, and coal gangue powder et al. are applied in asphalt mixture and superior behavior in rutting resistance, fatigue resistance and moisture susceptibility in asphalt mastic or mixture proved their
Except finding alternative fillers to enhance performance of asphalt material, attempts in trying materials with special physical properties (i.e., electro-magnetic sorption) as filler have been given much attention as well. After adding electro-magnetic sensitive materials such as carbon black...
Owing to the excellent adsorptive performance of porous silica, polyethylene glycol/silicon dioxide Shape-Stabilized Phase Change Materials (PEG/SiO2 SSPCM) were prepared using sol-gel method by impregnating different doses of PEG into the pore structure of silicon dioxide gel. And Asphalt-shape-stabilized phase change materials blends (Asphalt-SSPCM) with different PEG doses were prepared by melt blending method. The pore structure of silicon dioxide and morphology of PEG/SiO2 SSPCM were characterized by porosity analyzing instrument and Scanning Electron Microscope (SEM); the crystal structure, heat storage property and heat stability of PEG/SiO2 SSPCM in asphalt were studied by X-Ray Powder Diffraction (XRD) and synthesized thermal analyzer (DSC/TG). The results showed that silicon dioxide had porous microstructure with high surface area and energy, which can absorb PEG. PEG crystal structure still existed in Asphalt-SSPCM, and the heat storage ability of Asphalt-SSPCM increased with increasing PEG dose in the blends, the enthalpy of the blends was 117.5 J/g with PEG 76.1 wt%, and the blends with different doses of PEG all showed favorable heat stability. Moreover, the heat storage principle of Asphalt-SSPCM was analyzed based on the phase change theory. 041b061a72