A Case Study of Bio-permeable Concrete Construction as Sustainable and Climate Resilience Parking Lots
摘要
This study investigates the use of biochar in pervious concrete, termed Bio-permeable concrete (BPC), aiming to assess its sustainability as pavement and its effectiveness in climate change resilience. The objective is to utilize biochar as a carbon-negative material for decarbonization purposes while enhancing engineering properties. In this research, biochar replaced natural aggregate particles as fine aggregate in BPC. Results indicate that incorporating biochar into BPC improved mechanical properties, including compressive strength and splitting tensile strength, compared to conventional pervious concrete. However, excessive biochar content led to a decrease in infiltration rate. BPC with an appropriate biochar content was then utilized in parking lot construction. Field construction validation demonstrated that BPC with suitable biochar content not only met engineering requirements for traffic services but also effectively managed stormwater on pavement surfaces during rainy periods in Chiang Mai, Thailand. Hence, this study contributes to sustainable construction by offering a means to reduce carbon footprint and enhance climate change resilience through mitigating the impacts of stormwater.