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  本文關鍵詞： 透水混凝土 剛性聚合纖維 強度 透水系數(shù) 孔隙率 試驗研究　出處：《武漢輕工大學》2013年碩士論文　論文類型：學位論文

【摘要】：透水混凝土是一種綠色混凝土，具有及時補充地下水和吸聲降噪等優(yōu)點，可以彌補普通混凝土的缺點，對改善城市的生態(tài)環(huán)境有深遠的意義。但較多的孔隙也使得透水混凝土的強度、抗凍性和耐磨性等不能滿足路面使用的要求。為了擴展透水混凝土的應用，本課題采用摻加剛性聚合纖維增強透水混凝土性能，并進行了試驗研究。 首先，系統(tǒng)采用正交試驗設計方法對試驗進行整體設計，介紹了測定剛性聚合纖維透水混凝土的物理性能試驗方法，包括抗壓強度、透水系數(shù)、孔隙率、抗折強度和劈裂抗拉強度試驗。 其次，進行了四因素三水平的正交試驗。按照相應的試驗方法依次測定了各個物理性能。用直觀分析法和方差分析法對每個物理性能的測定數(shù)值進行了分析。利用直觀分析法得到了較好的單一物理性能較優(yōu)秀的因素組合。利用方差分析法分析了各個因素對相應物理性能影響的顯著性。并且研究分析了剛性聚合纖維對透水混凝土改性的機理。綜合考慮，在實際工程中推薦的透水混凝土最佳配合比為：骨料粒徑10~16mm，水灰比0.35，，纖維摻量0.4%，乳液摻量為15%。 最后，研究了剛性聚合纖維透水混凝土各個物理性能相互之間的關系。利用回歸法對透水系數(shù)和孔隙率、孔隙率和抗壓強度、抗折強度和抗壓強度、劈裂抗拉強度和抗壓強度的關系進行了定量分析，得到了二者之間相應的基本變化趨勢和量化公式，所得結(jié)論對實際工程有指導意義。 通過研究配合所得剛性聚合纖維透水混凝土的整體性能高于普通透水混凝土。各影響因素間的量化公式的提出為透水混凝土的實際工程應用奠定了理論基礎。
[Abstract]:Permeable concrete is a kind of green concrete, which has the advantages of replenishing groundwater in time and reducing noise by sound absorption, which can make up for the shortcomings of ordinary concrete. In order to expand the application of permeable concrete, the strength, frost resistance and wear resistance of permeable concrete can not meet the requirements of pavement use. In this paper, the performance of permeable concrete reinforced with rigid polymeric fiber was studied. Firstly, the orthogonal design method is used to design the whole test. The physical properties of rigid polymer fiber permeable concrete are tested, including compressive strength, permeability coefficient, porosity, etc. Flexural strength and splitting tensile strength test. Secondly, The orthogonal experiments of four factors and three levels were carried out. The physical properties were measured in turn according to the corresponding test methods. The measured values of each physical property were analyzed by visual analysis method and variance analysis method. A better combination of single physical properties and better physical properties was obtained by means of the analysis of variance. The significance of each factor on the physical properties was analyzed by variance analysis, and the effect of rigid polymeric fiber on water permeability and coagulation was studied and analyzed. Mechanism of land reform. The optimum mix ratio of permeable concrete in practical engineering is as follows: aggregate diameter 1016 mm, water cement ratio 0.35, fiber content 0.4 and emulsion volume 15. Finally, the relationship between the physical properties of rigid polymerized fiber permeable concrete is studied. The regression method is used to study the permeability coefficient and porosity, porosity and compressive strength, flexural strength and compressive strength. The relationship between splitting tensile strength and compressive strength is quantitatively analyzed and the corresponding basic change trend and quantitative formula are obtained. The conclusions are of guiding significance for practical engineering. The whole performance of rigid polymerized fiber permeable concrete is higher than that of ordinary permeable concrete through the research. The quantification formula among the influencing factors has laid a theoretical foundation for the practical engineering application of permeable concrete.
【學位授予單位】：武漢輕工大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU528

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