混凝土配合比优化设计技术应用与研究

发布时间：2018-02-08 13:53

本文关键词： 混凝土配合比优化设计　出处：《湖北工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着我国现代经济的发展和改革开放的进程加快,现代工程建设规模正日益加大和加快,如何在确保建筑工程质量和安全的同时还能保证工程长期使用的安全性,工程质量安全事故通常会带来重大教训,工程质量是社会各界广泛关注的重点对象。在现代工程建设中,特别是现代基础建设中,混凝土是应用最多的建筑材料,也是现在工程建设中不可缺少的建筑材料。本论文简要的说明了混凝土配合比优化设计国在内外的研究状况及发展方向,并根据此和工程需要提出了此论文课题;我们以《普通混凝土配合比设计规程》中普通混凝土配合比设计原理作为理论基础,并根据混凝土配合比设计步骤来设计研究过程和相应的操作准则,在研究过程中以目前工程常用混凝土及其影响因素作为我们的重点研究对象。本次试验研究选取二种优化方案,第一种优化方案分别从混凝土用水量优化、粉煤灰掺量优化、骨料优化及水胶比确定等方面,是本次对混凝土配合比进行优化试验研究的对象;第二种优化方案从不同外加剂的选取、掺入外加剂和掺用粉煤灰的组合方式方面对混凝土配合比进行了优化试验研究。与此同时,本课题还对混凝土的质量影响进行了分析,分别研究了原材料中质量的影响和原种材料组分对混凝土的质量影响。最后,依据本课题的优化成果对韶关发电厂实际工程的多组配合比设计进行了实际应用优化,优化效果比较明显,取得了良好的经济效益。
[Abstract]:With the development of China's modern economy and the acceleration of the process of reform and opening up, the scale of modern engineering construction is increasing and speeding up day by day. How to ensure the quality and safety of the construction project at the same time as well as the safety of the long-term use of the project? Engineering quality and safety accidents usually bring great lessons. Engineering quality is the focus of attention from all walks of life. In modern engineering construction, especially in modern infrastructure construction, concrete is the most widely used building material. It is also an indispensable building material in current engineering construction. This paper briefly explains the research situation and development direction of concrete mix ratio optimization design country inside and outside, and puts forward this thesis subject according to this and the engineering need; We take the design principle of ordinary concrete mixture ratio as the theoretical basis, and design the research process and the corresponding operation criterion according to the concrete mix proportion design step. In the course of the research, the common concrete and its influencing factors are taken as our key research object. Two kinds of optimization schemes are selected in this experiment, the first one is the optimization of water consumption of concrete, the optimization of fly ash content, the other is the optimization of concrete water consumption and the content of fly ash. The optimization of aggregate and the determination of water-binder ratio are the objects of this experiment. The second optimization scheme is from the selection of different admixtures. In the aspect of the combination of admixture and fly ash, the optimum mix ratio of concrete is studied. At the same time, the influence of concrete quality is analyzed. The effects of raw material quality and original material composition on concrete quality are studied respectively. Finally, the practical application optimization of multi-group mix ratio design of Shaoguan Power Plant is carried out according to the optimization results of this subject. The optimization effect is obvious and good economic benefit has been obtained.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU528

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