An experimental analysis on the permeability of pervious concrete pavement using incinerator bottom ash

• Main Authors: Ming-shen Li, 李明珅
• Other Authors: Wen-Guey Chung
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/00507796195880382925

碩士 === 國立屏東科技大學 === 土木工程系所 === 101 === The Contents of Abstract in this Thesis： Pervious pavement have the characteristics of rainwater can seep directly into the roadbed and underground water, can delay peak flow and slow down the heat island effect, and thus achieve ecological benefits. Pervious pavement in increase permeable as the main consideration, the composition of the material strength become secondary, and therefore hardly afford large traffic loads, suitable for low traffic and low-bearer of the road, such as urban roadway, Township Road, industry, roads, parking lots and sidewalks. General cement pervious concrete compressive strength of approximately 200psi (1.5Mpa) ~ 2000psi (14Mpa) the permeable coefficient of greater than 1 × 10-2 cm/sec, which strength will be less than traditional asphalt concrete pavement. The main subject of this study is incinerator bottom ash, specifically in its use as the main recycled material in pervious concrete aggregate mixing. This study will explore pervious pavement surface bearing strength, water permeability, and the best surface material for pavement pellets to achieve low stripping of the extent-blending ratio. Consider the water-cement ratio 0.45, resin add the amount of 5%, The fines total coarse aggregate percentage , natural fines accounted of the bottom ash coarse aggregate percentage and blast furnace slag to add the amount of blending variables as the experimental analysis of the material, and then by the compressive strength shown in the Cantabria test data, statistical induction to meet demand for permeable pavement surface layer material blending the best ratio. The test results showed that the compressive strength of a fully bottom ash mixture is up to 118 kgf/cm2, while specimens cured for 28 days, the permeability coefficient between 0.0285 to 0.0496 cm/sec, which meet a specification greater than 1 × 10-2 cm/sec requirements, #4 and #8 aggregate mixed-particle mastering specimens helped increase the compressive strength and anti-stripping, but the water permeability coefficient will be slightly lower. Instead, adding the natural fine material and blast furnace powder to bottom ash fine material with the resin can effectively improve the compressive strength and anti-exfoliative of the specimen. Finally, the best ratio of 6 different irrigation system, changes in the underlying pavement analog ground floor is currently interviewing body after specimens were detected through changes in water quality and situ permeability coefficient. The test results showed the permeable pavement surface layer to 5 cm plus underlying natural gradation to 40 cm plus geotextiles of the pavement structure, the generating critical water runoff reached 227.11 cm3/sec, when converted into water permeability is approximately 2910.63 mm/hr, the highest amount of in situ permeability 1331 ml/15sec, while the permeable pavement to enhance the effectiveness of water purification water quality Dissolved oxygen ,and drop the Electrical Conductivity, Total Dissolved Solids and Oxidation-Reduction Potential.