Geothermal Pavements: Experimental Testing, Prototype Testing, and Numerical Analysis of Recycled Demolition Wastes
نویسندگان
چکیده
Geothermal pavements have the potential to reduce pavement surface temperature by circulating fluid in pipes within structure. This research investigated an innovative geothermal system with multiple benefits, such as reducing and harvesting heat energy for power generation. aimed provide understanding of mechanical properties constructed construction demolition (C&D) waste materials through large-scale physical testing, experimental small-scale prototype numerical simulation. The were assessed under long-term traffic loading conditions using a test system. repeated load triaxial repeated-load California bearing ratio tests also undertaken evaluate effect pipe inclusion on permanent deformation, stiffness, strength base. A model was subsequently developed calibrated data from testing. In addition, effects flow rate thermal performances this research. base layer found negligible detrimental deformation behavior RCA. resilient moduli recycled concrete aggregate (RCA) samples slightly decreased pipes. An HDPE reduced stiffness RCA + mix. On other hand, copper pipe’s high improved mix’s strength. simulations indicated that pipe, increasing 500 mL/min 2000 approximately 1.3%, while resulted 4% further decrease compared pipe.
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ژورنال
عنوان ژورنال: Sustainability
سال: 2023
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su15032680