Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silt curing agent prepared from steel slag modified phosphogypsum and use method thereof
The invention provides a silt curing agent prepared from steel slag modified phosphogypsum and a use method thereof. The silt curing agent comprises the following components: 40-70% of steel slag modified phosphogypsum powder, 30-60% of a cementing agent and 1-10% of a reinforcing agent, wherein the steel slag modified phosphogypsum powder is formed by mixing and modifying 5-25% of steel slag and75-95% of phosphogypsum by mass percentage. According to the invention, phosphogypsum is firstly modified by steel slag, alkaline substances of the steel slag react with soluble phosphoric acid, calcium phosphate and fluoride impurities contained in the phosphogypsum to be converted into insoluble precipitate substances, the adhesion among crystals in increased, so that the bonding performance ofphosphogypsum is improved, and meanwhile, acidic substances like sulfuric acid and phosphoric acid in the phosphogypsum are mixed with the steel slag to destroy the vitreous structure in the steel slag, so that the compact silicate vitreous structure in the steel slag is dissociated, the hydration activity of the steel slag is improved, and the strength of silt cured by the curing agent is furtherimproved.
本发明提供了一种利用钢渣改性磷石膏制备的淤泥固化剂及其使用方法，该淤泥固化剂包括如下组分：钢渣改性磷石膏粉40～70％，胶结剂30～60％和增强剂1～10％；所述钢渣改性磷石膏粉由质量百分比为5～25％的钢渣和75～95％的磷石膏混合改性而成。该发明利用钢渣先改性磷石膏，钢渣的碱性物质与磷石膏中含有可溶性的磷酸、磷酸钙、氟化物杂质反应转化为难溶沉淀物质，增加晶体间的粘结力，从而提高磷石膏胶结性能，同时磷石膏中硫酸、磷酸等酸性物质与钢渣混合会破坏钢渣中玻璃体结构，使钢渣中致密的硅酸盐玻璃体结构解离，提高钢渣的水化活性，进而提高固化剂固化淤泥强度。
Silt curing agent prepared from steel slag modified phosphogypsum and use method thereof
The invention provides a silt curing agent prepared from steel slag modified phosphogypsum and a use method thereof. The silt curing agent comprises the following components: 40-70% of steel slag modified phosphogypsum powder, 30-60% of a cementing agent and 1-10% of a reinforcing agent, wherein the steel slag modified phosphogypsum powder is formed by mixing and modifying 5-25% of steel slag and75-95% of phosphogypsum by mass percentage. According to the invention, phosphogypsum is firstly modified by steel slag, alkaline substances of the steel slag react with soluble phosphoric acid, calcium phosphate and fluoride impurities contained in the phosphogypsum to be converted into insoluble precipitate substances, the adhesion among crystals in increased, so that the bonding performance ofphosphogypsum is improved, and meanwhile, acidic substances like sulfuric acid and phosphoric acid in the phosphogypsum are mixed with the steel slag to destroy the vitreous structure in the steel slag, so that the compact silicate vitreous structure in the steel slag is dissociated, the hydration activity of the steel slag is improved, and the strength of silt cured by the curing agent is furtherimproved.
本发明提供了一种利用钢渣改性磷石膏制备的淤泥固化剂及其使用方法，该淤泥固化剂包括如下组分：钢渣改性磷石膏粉40～70％，胶结剂30～60％和增强剂1～10％；所述钢渣改性磷石膏粉由质量百分比为5～25％的钢渣和75～95％的磷石膏混合改性而成。该发明利用钢渣先改性磷石膏，钢渣的碱性物质与磷石膏中含有可溶性的磷酸、磷酸钙、氟化物杂质反应转化为难溶沉淀物质，增加晶体间的粘结力，从而提高磷石膏胶结性能，同时磷石膏中硫酸、磷酸等酸性物质与钢渣混合会破坏钢渣中玻璃体结构，使钢渣中致密的硅酸盐玻璃体结构解离，提高钢渣的水化活性，进而提高固化剂固化淤泥强度。
Silt curing agent prepared from steel slag modified phosphogypsum and use method thereof
利用钢渣改性磷石膏制备的淤泥固化剂及其使用方法
XIONG JINGCHAO (Autor:in) / JIANG MINGMING (Autor:in) / SHAO YAN (Autor:in) / GUO HUAJUN (Autor:in) / LIU ZIHAO (Autor:in) / LIU YING (Autor:in) / JIANG QINGKEN (Autor:in) / YANG ZHEN (Autor:in)
27.10.2020
Patent
Elektronische Ressource
Chinesisch
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