The study on the planting on non-sintered porous concrete pavement.

• Main Authors: Yuan-Yi Yan, 顏源毅
• Other Authors: Chao-Lung Hwang
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/91308978093783411584

碩士 === 國立臺灣科技大學 === 營建工程系 === 96 === This feasibility study focuses on applying non-sintered porous concrete material for planting. The study is divided into three stages, the first stage is the selection of binder material from cement paste and mortar based on using Fuller’s gradation curve to calculate the blended material ratio and then choosing the one with the optimum strength, volume stability, and durability. The second stage is the mixture design of porous concrete according to coating thickness on aggregate, Dmax, and aggregate type (river or mechanical crushed aggregate) to select the one with the maximum packing density and the least binder paste, under the criteria of maximizing large void and minimizing the fine pore in the same time. The third stage is to observe the planting behavior on porous concrete. The result shows the water for mortar is 1.78 times less than that of paste with the addition of silica fume, and the performance of mortar is better than that of paste based on the fresh and hardened properties. The use of slag to replace 25% weight of cement achieves better cement strength efficiency. The compressive strength of porous concrete by using mechanical crushed arrgegate is about 19% higher than that of river aggregate. The binder(mortar)-to-aggregate ratio needs to be more than 36% for river aggregate to making sidewalk pavement. The wheat grass grows well in each kind of porous concrete as long as the pavement is covered with thin layer of soil. The root system will develop and grow well in the porous concrete as long as the root has free space to extend.