Using Origin Software to Study Silicon Effect on Yunnan Building Phosphogypsum

摘要

This paper had explored the effects of different contents of silicone defoamer for time of coagulation and compressive strength of building phosphogypsum. At last, this paper had used origin software to deal with the data of test and verified fitting equation. Phosphogypsum was a by-product of wet phosphoric acid industrial production and the every 1t phosphate will produce 4.5t phosphogypsum in average, its main component was CaSO_4·2H_2O. Industrial by-product phosphogypsum have many uses, such as cement retarder, adsorption-based sludge, preparation construction materials and so on. With the developing of industrialization, the annual production of phosphogypsum by-product was also increasing, how to consume a lot of phosphogypsum was a major problem. Building materials was a great consumption products, even after pretreatment removal the most impurities of phosphogypsum, but the test blocks of building phosphogypsum contains a large number of bubbles, which can reduce its strength and influence on the mechanical performance of building phosphogypsum. So, this paper based on this phenomenon, studying silicone defoamer which its effects on the performance of building phosphogypsum in Yunnan province, aim at solving the problem of its porosity. Because silicone defoamers used for the textile industry, paper industry and so on, in building materials especially building phosphogypsum materials has little research in this area, Therefore, this study explore a new way to chose a better defoamer of building phosphogypsum.