植生型生态再生砖瓦混凝土抗压强度和透水性能研究

发布时间：2018-04-23 07:27

本文选题：植生型生态再生砖瓦混凝土 + 抗压强度　；参考：《山东农业大学》2014年硕士论文

【摘要】：我国对于植生型生态混凝土的研究工作开展较晚,目前工程应用的案例较少,更多的的处于试验研究中,并未形成一套成熟的工程技术。而在对植生型生态混凝土开展的研究中,采用废弃砖瓦为骨料的少之又少。本文所研究的植生型生态混凝土以再生砖瓦为骨料,旨在说明再生砖瓦作为植生型生态混凝土骨料可以成为建筑垃圾资源化利用的一条行之有效的途径。结合植生型生态混凝土的工程应用要求和再生砖瓦骨料的特殊性质,借鉴国内外的研究成果,本文重点研究了植生型生态再生砖瓦混凝土的抗压强度和透水性能,以及再生砖瓦骨料的制备工艺流程和强化处理技术,得出了适用于再生砖瓦骨料的植生型生态混凝土的配合比设计原理和计算方法。 (1)通过对废弃砖瓦进行人工破碎、清洗、筛选分级得到不同粒径的再生砖瓦骨料。同时,对再生砖瓦骨料进行强化处理,提高其使用稳定性,并对其基本物理指标,如表观密度、堆积密度、吸水率、含水率和压碎指标进行了测定研究。 (2)在参照普通植生混凝土配合比设计的基础上制备以再生砖瓦为骨料的植生型生态混凝土,重点研究了骨料粒径、水灰比和设计孔隙率对植生型生态再生砖瓦混凝土抗压强度和透水性能的影响规律,得出了应重点控制的各项设计指标和合理范围。此外,还研究了设计孔隙率与实测孔隙率之间的关系以及植生型混凝土养护过程中抗压强度的发展规律。 (3)在前期试验的基础上,进行抗压强度和透水系数正交试验,采用SPSS软件对试验结果进行方差分析,研究了各项设计指标对控制变量的影响程度和规律,基于抗压强度和透水性能的平衡分析,得到了植生型生态再生砖瓦混凝土的合理配比范围。本研究得到了大量的试验数据并取得了一定的成果,这对今后植生型生态再生砖瓦混凝土的研究和应用有重要参考价值,为以再生砖瓦为骨料的植生型生态混凝土的实践应用提供了理论指导。
[Abstract]:In our country, the research work on plant-type ecological concrete has been carried out late, and there are fewer cases of engineering application at present, more of which are in the process of experimental research, and a set of mature engineering technology has not been formed. In the research of planting ecological concrete, the waste brick and tile as aggregate is rare. In this paper, recycled bricks and tiles are used as aggregates in order to show that recycled bricks and tiles can become an effective way to reuse construction waste. Combined with the engineering application requirements of plant-type ecological concrete and the special properties of recycled brick and tile aggregate, and referring to the research results at home and abroad, this paper focuses on the compressive strength and water permeability of plant-type ecological recycled brick and tile concrete. The design principle and calculation method of the proportioning ratio of the plant ecological concrete suitable for the recycled brick and tile aggregate were obtained as well as the preparation process and the strengthening treatment technology of the recycled brick and tile aggregate. 1) recycled brick and tile aggregates with different sizes were obtained by artificial crushing, cleaning and sorting. At the same time, the reclaimed brick and tile aggregate was strengthened to improve its stability, and its basic physical indexes, such as apparent density, accumulation density, water absorption, moisture content and crushing index, were measured and studied. (2) based on the design of the mix ratio of ordinary plant-concrete, the regenerated concrete with recycled brick and tile as aggregate was prepared, and the particle size of aggregate was studied emphatically. The effects of water-cement ratio and design porosity on compressive strength and water permeability of plant-type ecological recycled brick and tile concrete were studied. In addition, the relationship between the design porosity and the measured porosity and the development of compressive strength during the curing process of the plant-type concrete are also studied. 3) on the basis of the previous test, the orthogonal test of compressive strength and permeability coefficient was carried out, and the variance analysis of the test results was carried out by using SPSS software, and the influence degree and law of each design index on the control variable were studied. Based on the balance analysis of compressive strength and water permeability, the reasonable ratio range of ecological recycled brick and tile concrete was obtained. In this study, a large number of experimental data have been obtained and some results have been obtained, which have important reference value for the future research and application of ecological recycled brick and tile concrete. It provides theoretical guidance for the practical application of plant ecological concrete with recycled brick and tile as aggregate.
【学位授予单位】：山东农业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU528

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