基于陶瓷废料的混凝土的力学性能研究

发布时间：2018-06-12 11:50

本文选题：陶瓷粉 + 二次利用　；参考：《烟台大学》2014年硕士论文

【摘要】：环境问题一直备受关注，建筑业和陶瓷业迅猛发展成为国家经济收入的主要来源，快速发展的同时，也给我们的环境带来了一定的污染，如何将污染降低到最低并合理利用取得一定的经济效益是防灾减灾领域的一个重要课题。本研究从降低污染、保护环境和节约资源的角度出发，通过对陶瓷粉与水泥、粉煤灰的不同比例掺和性能进行实验研究，合理利用陶瓷工业生产中产生的二次陶瓷粉为实验原材料，采用对比实验的方式，探讨陶瓷粉在混凝土生产中的利用，降低水泥及混凝土等建筑用材的生产成本。通过将陶瓷抛光砖陶瓷粉粉与水泥、矿粉进行对比实验确定其可以作为生产原料加入到混凝土制备中，结合混凝土的一系列力学实验分析对比研究发现： 1、实验陶瓷粉的烧失量、细度、含水量与矿粉相差不大，具有一定的潜在水硬性和火山灰活性，而且水泥胶砂强度活性指数可达89%，但比表面积、净浆流动度远高于矿粉。 2、灼烧前后的陶瓷粉在标准稠度用水量、对水泥初凝时间和终凝时间有不同的影响，，与矿粉有着明显的区别。 3、陶瓷粉掺入混凝土试块后，力学特点与矿粉的表现不同，重点是不同龄期抗压强度、劈裂抗拉强度和抗折强度。掺入适量的陶瓷粉有利于混凝土构件的抗弯能力和抗折水平，在工程实际中可以减缓细小裂缝的扩展速度，增强混凝土构件的耐久性。 4、陶瓷粉中会含有氯离子成分，而氯离子对钢筋侵蚀的影响没有明确值，故在工程中的大范围应用还需要进一步研究。
[Abstract]:Environmental problems have always been the focus of attention. The construction industry and ceramic industry have developed rapidly into the main source of national economic income. The rapid development has also brought about certain pollution to our environment. How to reduce the pollution to the lowest and obtain certain economic benefits is an important subject in the field of disaster prevention and mitigation. From the point of view of reducing pollution, protecting the environment and saving resources, the paper analyzes the ceramic powder and cement. The mixing properties of fly ash in different proportions were studied. The secondary ceramic powder produced in ceramic industry was used as the experimental raw material, and the use of ceramic powder in concrete production was discussed by means of comparative experiment. Reduce the production cost of building materials such as cement and concrete. By comparing ceramic polishing tile ceramic powder with cement and mineral powder, it is determined that the ceramic powder can be added to the preparation of concrete as raw material. In combination with a series of mechanical experiments of concrete, it is found that: 1. The fineness, water content and mineral powder have some potential hydration and pozzolanic activity, and the strength activity index of cement sand can reach 89, but the specific surface area. The fluidity of pure slurry is much higher than that of mineral powder. 2. The water consumption of ceramic powder before and after burning has different effects on the initial setting time and final setting time of cement, and it is obviously different from that of mineral powder. 3. After the ceramic powder is mixed into the concrete test block, the water consumption of ceramic powder before and after burning has different effects on the initial setting time and final setting time of cement. The mechanical characteristics are different from those of mineral powder, and the emphasis is on compressive strength, splitting tensile strength and flexural strength at different ages. The addition of proper amount of ceramic powder is beneficial to the flexural capacity and the level of bending resistance of concrete members, and can slow down the propagation speed of small cracks and enhance the durability of concrete members in engineering practice. However, the influence of chloride ion on steel bar erosion is not definite, so its wide application in engineering needs further study.
【学位授予单位】：烟台大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU528

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