Material Design and Performance Analysis of Porous Cement Stabilized Macadam

2018 International Conference of Green Buildings and Environmental Management

土木建筑工程;生态环境科学

Jin-Ming, Yin^1 ; Sheng-Long, Miao^2 ; Shi-Quan, Li^1 ; Wei, Meng^1

Taizhou Institute of Science and Technology, Nanjing University of Science and Technology, NO. 8 Meilan East Road, Taizhou, Jiangsu, China^1

Xuhai College, China University of Mining and Technology, NO. 1 Jinshan East Road, Xuzhou, Jiangsu, China^2

关键词: Cement-stabilized macadam;    Effective porosity;    Material designs;    Optimum porosity;    Performance analysis;    Road engineering;    Splitting strength;    Unconfined compressive strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/186/2/012015/pdf
DOI  :  10.1088/1755-1315/186/2/012015

来源: IOP

【 摘 要 】

In order to use cement stabilized macadam in sponge road engineering, porous cement stabilized macadam was designed based on Bailey method and Taibal method, and theoretical porosity was taken as design index. Effective porosity, permeability coefficient, unconfined compressive strength, splitting strength and COD removal ability were analyzed by experiment. The results show that, effective porosity is proportional to theoretical porosity, ratio of effective porosity is lower while theoretical porosity is smaller. Unconfined compressive strength(UCS) and splitting strength are decreasing with theoretical porosity increasing, and downtrend is more significant while theoretical porosity is less than 20%. The removal ability of COD is enhancing with porosity increasing. So, if strength, water permeable ability, water storage ability, COD removal ability are taken into consideration, 20% is optimum porosity for porous cement stabilized macadam.