本文選題：自密實　切入點：再生骨料　出處：《大連理工大學》2015年碩士論文　論文類型：學位論文

【摘要】：伴隨著我國土木工程行業(yè)蓬勃發(fā)展,建筑混凝土垃圾數(shù)量日益增多。數(shù)量龐大的混凝土建筑垃圾如果不采取恰當?shù)拇胧┒S意進行堆棄,將會對生態(tài)環(huán)境產(chǎn)生嚴重的破壞�；谌藗儹h(huán)境保護意識的提高和科學發(fā)展觀的要求,自密實再生骨料混凝土課題的應用能夠很好的解決了這一問題,因為自密實再生骨料混凝土具有很好的施工性能和一定的綠色度,這使得自密實再生骨料混凝土能更為廣泛的應用到土木工程領(lǐng)域中。本文通過自密實再生骨料混凝土一系列試驗,研究了兩種原生強度的再生粗骨料在不同再生粗骨料取代率下自密實再生骨料混凝土的配合比、工作性能、力學性能和變形性能。本文主要工作有：對于再生粗骨料的基本性能,完成了再生骨料吸水率、表觀密度、壓碎值、磨損性試驗；通過對再生粗骨料預濕處理和裹漿辦法并添加減水劑和粉煤灰等配制出了高性能的自密實再生骨料混凝土；進行了自密實再生骨料混凝土的填充性、流動性、抗離析性試驗；進行了自密實再生骨料混凝土抗壓,劈裂抗拉強度和粘結(jié)錨固試驗；此外還進行了自密實再生骨料混凝土的干縮變形試驗。在上述試驗的基礎(chǔ)上對不同粗骨料取代率和不同原生強度粗骨料對自密實再生骨料混凝土性能的影響進行了對比分析。
[Abstract]:With the vigorous development of civil engineering industry in our country, the quantity of construction concrete garbage is increasing day by day. Will cause serious damage to the ecological environment. Based on the improvement of people's environmental protection consciousness and the requirement of scientific development view, the application of self-compacting recycled aggregate concrete project can solve this problem very well. Because self-compacting recycled aggregate concrete has good construction performance and certain green degree, This makes self-compacting recycled aggregate concrete more widely used in the field of civil engineering. The mixture ratio and working performance of two kinds of recycled coarse aggregate with primary strength under different recycled coarse aggregate replacement ratio were studied. The main work of this paper is as follows: for the basic properties of recycled coarse aggregate, the tests of water absorption, apparent density, crushing value and wear resistance of recycled aggregate have been completed; High performance self-compacting recycled aggregate concrete was prepared by pre-wetting treatment and slurry wrapping of recycled coarse aggregate and adding water reducer and fly ash, and the filling property, fluidity and resistance to segregation of self-compacting recycled aggregate concrete were tested. The compressive, splitting tensile strength and bond anchoring tests of self-compacting recycled aggregate concrete were carried out. In addition, the dry shrinkage deformation test of self-compacting recycled aggregate concrete is also carried out. On the basis of the above tests, the effects of different coarse aggregate replacement rates and different primary strength coarse aggregate on the properties of self-compacting recycled aggregate concrete are compared and analyzed.
【學位授予單位】：大連理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TU528

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本文編號：1638696