Cellular Porous Brick—A Novel Permeable Pavement Strategy

• 作者: Didong Lin Hengwei He Jinchi Lin Liangyang Qiu Lin Chen Shiguang Chen Xiaobing Xu Yu Zhang
• 来源期刊: 自然资源(英文)
• 学科: 工学
• 关键词: Permeable Pavement Honeycomb Structure Mechanical Properties PERMEABILITY
• 年，卷（期）: 2020,（12）
• 页码范围: 543-553
• 页数: 11页
• 分类号: TG1

摘要

Permeable pavement is generally considered as one of the most effective prac-tices of rainwater management. This paper analyses the defects of current permeable pavement. Inspired by the honeycomb bionic structure which has superior mechanical properties and structural efficiency, an innovative “honeycomb-like” model of permeable brick measuring 190 × 100 × 60 mm in size was proposed and constructed. The mechanical strength and permeability performance of the honeycomb permeable brick were experimentally assessed by universal testing machine and artificial rainfall equipment, respectively. Ex-periment results demonstrated an excellent performance in compressive toler-ance and permeability. The critical damage load (Fc) and compressive strength (Ec) of honeycomb brick were 336.46 KN and 17.70 MPa, which were 18.06% and 11.04% higher than that of ordinary solid permeable bricks, respectively, compared with the conventional permeable bricks. The honeycomb brick is capable of increasing the permeability coefficient by 19.2% and 11.96% under rainfall repetition period of 20 and 30 years respectively. These results demon-strated that the permeable brick with honeycomb-like structure can provide a new paving strategy for the construction of sponge city.