Educational opportunities for students addressing issues in sustainable built environments are evolving with new learning approaches. Our study asked if technology mediated learning environments using AR （augmented r...Educational opportunities for students addressing issues in sustainable built environments are evolving with new learning approaches. Our study asked if technology mediated learning environments using AR （augmented reality） can enhance student learning in the architecture and engineering disciplines. There were multiple study sites, two of them University of Arkansas and Florida International University are discussed. At each site, three collaborative projects were assigned to student teams during fall 2016. Students analyzed an existing building and developed alternative solutions based on improving energy performance. Our paper presents： （1） the research challenge related to the integration of immersive head-mounted display technology providing visual simulations and interactive lessons for interdisciplinary collaboration; and （2） the progress of Phase 1 consisting of our control group results run without the use of AR technology.展开更多
Full-Depth Reclamation （FDR） is a sustainable method of building pavement structure compared to more traditional rehabilitation methods. Traffic is generally returned to an FDR project before a surface course is app...Full-Depth Reclamation （FDR） is a sustainable method of building pavement structure compared to more traditional rehabilitation methods. Traffic is generally returned to an FDR project before a surface course is applied, as water in the FDR needs time to evaporate from the structure. This should not be done too quickly or raveling occurs. Currently, there is no test to quantify the timing of return to traffic. In this study, the ＂Raveling test of cold mixed bituminous emulsion samples＂ （ASTM D7196） was used to compare asphalt emulsion and asphalt foam FDR. Asphalt emulsion samples were cured at ambient and 40℃ temperatures, while asphalt foam samples were cured at ambient temperatures. Raveling test data was collected from 0 to 48 hours of curing, however, samples were often not able to withstand fifteen minutes of testing. Therefore, the ＂time lasted＂ （the time the raveling head loses contact with the surface of the sample） was recorded. In general, the asphalt emulsion samples that were cured in the oven at 40℃ had a longer time lasted and showed higher potential for determination of return to traffic. In addition, the asphalt emulsion samples had a longer time lasted than the asphalt foam samples at ambient temperatures.展开更多
基金Acknowledgments The work described in this paper was partially supported by the National Science Foundation under award No. 1504898. The Holoens-AR development work is underway at the Tesseract Center at the University of Arkansas under the direction of Dr. David Fredrick with Keenan Cole, Chloe Costello and undergraduate Corey Booth. Documentation of the Vol Walker construction was done by the Center for Advanced Spatial Technologies （CAST） at the University of Arkansas.
文摘Educational opportunities for students addressing issues in sustainable built environments are evolving with new learning approaches. Our study asked if technology mediated learning environments using AR （augmented reality） can enhance student learning in the architecture and engineering disciplines. There were multiple study sites, two of them University of Arkansas and Florida International University are discussed. At each site, three collaborative projects were assigned to student teams during fall 2016. Students analyzed an existing building and developed alternative solutions based on improving energy performance. Our paper presents： （1） the research challenge related to the integration of immersive head-mounted display technology providing visual simulations and interactive lessons for interdisciplinary collaboration; and （2） the progress of Phase 1 consisting of our control group results run without the use of AR technology.
文摘Full-Depth Reclamation （FDR） is a sustainable method of building pavement structure compared to more traditional rehabilitation methods. Traffic is generally returned to an FDR project before a surface course is applied, as water in the FDR needs time to evaporate from the structure. This should not be done too quickly or raveling occurs. Currently, there is no test to quantify the timing of return to traffic. In this study, the ＂Raveling test of cold mixed bituminous emulsion samples＂ （ASTM D7196） was used to compare asphalt emulsion and asphalt foam FDR. Asphalt emulsion samples were cured at ambient and 40℃ temperatures, while asphalt foam samples were cured at ambient temperatures. Raveling test data was collected from 0 to 48 hours of curing, however, samples were often not able to withstand fifteen minutes of testing. Therefore, the ＂time lasted＂ （the time the raveling head loses contact with the surface of the sample） was recorded. In general, the asphalt emulsion samples that were cured in the oven at 40℃ had a longer time lasted and showed higher potential for determination of return to traffic. In addition, the asphalt emulsion samples had a longer time lasted than the asphalt foam samples at ambient temperatures.
