- 學位論文
用天然粒料產製混凝土透水磚之試驗研究
An experimental study on making permeable concrete brick by natural aggregates
摘要
透水性舖面材料的研發是近年來國內外產學界熱門的課題，此乃是因為透水性舖面具有多孔隙特性，能使路面雨水直接滲入路基而保水於地底下，可延緩洪峰流量及減緩熱島效應，進而達到生態效益。透水性舖面的構築材料包括透水瀝青混凝土、透水水泥混凝土、透水磚、多孔磚與生態磚等。本研究主要目的在於用天然粒料、水泥、爐石粉等材料，利用正交試驗分析法統計歸納出其優選材料配比，依此配比灌製混凝土透水磚，並將透水磚成品用一般工法舖設於塑膠桶模擬透水磚舖面，藉模擬降雨分析透水磚鋪面之透水性能及水流通過後之淨化水質能力。 試驗結果顯示以正交試驗分析法優選材料配比產製的透水磚，抗壓強度為309.2kgf/cm2、抗彎強度60.2 kgf/cm2、透水係數0.0326 cm/sec、孔隙率13.22%，達到CNS14995規定之強度與透水率要求。透水磚舖面在降雨平臺模擬降雨達到逕流臨界點流量為400cm3/sec，即降雨每小時超過119mm時透水磚鋪面才會產生逕流現象。不同濁度水通過透水磚與透水磚舖面之水質顯示兩者均能有效地降低濁度具淨化水質能力。本研究的各項力學試驗與水質檢測試驗成果，可以作為透水磚工程舖面的參考，在實務應用上具有一定程度的參務價值。
並列摘要
In recent years, the research on permeable pavement material is a hot topic in the production and academic circles in domestic and abroad. because the permeable pavement material has multi-porous characteristics which can enable the rainwater on the pavement directly penetrate into subgrade and thus keep water under the ground so that it can delay peak discharge, mitigate the heat island effect and achieve the ecological benefits. The building material of pervious pavement includes permeable bituminous concrete, permeable cement concrete, water permeable brick, perforated brick, ecological brick, etc. The main purpose of this study is to use the natural aggregates, concrete, slag and other materials to cast concrete water permeable brick by using preferential material ratio that is summarized by the orthogonal test analytical approach, pave the finished product of water permeable brick inside the plastic bucket, analyze the permeability performance of water permeable brick by using simulated rainfall as well as its water purifying capacity after the water flow goes through. The test results show that the compressive strength of water permeable brick produced according to the preferential material ratio that is summarized by the orthogonal test analytical approach is 309.2kgf/cm2, its bending strength is 60.2kgf/cm2, its permeation coefficient is 0.0326cm/sec, and its porosity is 13.22%. When simulating rainfall on the rainfall platform, the runoff critical point of water permeable brick pavement is flow 400cm3/sec, its permeable rate is approximately 5442.1mm/hr, and the accumulated rainfall per hour is amount to 119mm. When the muddy water of different degrees gets through the water permeable brick and its pavement, it shows that the two can effectively lower the turbidity and have the water quality purifying capacity. The test results of each mechanical test and water quality test in this research can use as a reference for the pavement of water permeable brick project and have certain reference values in the practical application.