Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nodular cast iron pipe anti-corrosion lining for conveying drinking water and manufacturing method
The invention discloses a nodular cast iron pipe anti-corrosion lining for conveying drinking water and a manufacturing method, the nodular cast iron pipe anti-corrosion lining is made of cement mortar, the cement mortar is made of cement, water, sand and additives, the cement comprises the following concrete components by mass: 25%-70% of cement clinker and gypsum, 10%-70% of superfine slag powder, 5%-20% of silica fume powder. The cement clinker comprises the following main mineral components in percentage by mass: 30%-65% of C3S, 10%-50% of C2S, less than or equal to 10% of C3A, less than or equal to 1.5% of free calcium oxide fCaO and less than or equal to 1% of (Na2O + 0.658 K2O). According to the anti-corrosion lining disclosed by the invention, the strength of the cement mortar lining is improved, and the porosity of the lining is reduced, so that the rising of the pH value of water and the rising of the aluminum content caused by the precipitation of calcium and aluminum hydrates in the water delivery process of the cement mortar lining are reduced, and the corrosion resistance of the lining and the hygienic performance of the water are improved.
本发明公开了一种用于输送饮用水的球墨铸铁管防腐内衬及制作方法，所述球墨铸铁管防腐内衬由水泥砂浆制成，所述水泥砂浆由水泥、水、砂子和添加剂制成，所述水泥的具体组分质量占比如下：水泥熟料与石膏：25％‑70％，矿渣微粉：10％‑70％，硅灰粉：5％‑20％。水泥熟料的主要矿物组成包括：C3S质量分数为30％‑65％，C2S质量分数为10％‑50％，C3A质量分数≤10％，游离氧化钙f‑CaO质量分数≤1.5％，(Na2O+0.658K2O)质量分数≤1％。本发明的防腐内衬提高了水泥砂浆内衬的强度，降低了内衬的孔隙率，从而降低了水泥砂浆内衬在输水过程中因钙及铝水化产物的析出造成的水质pH值升高及铝含量的升高，提高了内衬的耐腐蚀性及水质的卫生性能。
Nodular cast iron pipe anti-corrosion lining for conveying drinking water and manufacturing method
The invention discloses a nodular cast iron pipe anti-corrosion lining for conveying drinking water and a manufacturing method, the nodular cast iron pipe anti-corrosion lining is made of cement mortar, the cement mortar is made of cement, water, sand and additives, the cement comprises the following concrete components by mass: 25%-70% of cement clinker and gypsum, 10%-70% of superfine slag powder, 5%-20% of silica fume powder. The cement clinker comprises the following main mineral components in percentage by mass: 30%-65% of C3S, 10%-50% of C2S, less than or equal to 10% of C3A, less than or equal to 1.5% of free calcium oxide fCaO and less than or equal to 1% of (Na2O + 0.658 K2O). According to the anti-corrosion lining disclosed by the invention, the strength of the cement mortar lining is improved, and the porosity of the lining is reduced, so that the rising of the pH value of water and the rising of the aluminum content caused by the precipitation of calcium and aluminum hydrates in the water delivery process of the cement mortar lining are reduced, and the corrosion resistance of the lining and the hygienic performance of the water are improved.
本发明公开了一种用于输送饮用水的球墨铸铁管防腐内衬及制作方法，所述球墨铸铁管防腐内衬由水泥砂浆制成，所述水泥砂浆由水泥、水、砂子和添加剂制成，所述水泥的具体组分质量占比如下：水泥熟料与石膏：25％‑70％，矿渣微粉：10％‑70％，硅灰粉：5％‑20％。水泥熟料的主要矿物组成包括：C3S质量分数为30％‑65％，C2S质量分数为10％‑50％，C3A质量分数≤10％，游离氧化钙f‑CaO质量分数≤1.5％，(Na2O+0.658K2O)质量分数≤1％。本发明的防腐内衬提高了水泥砂浆内衬的强度，降低了内衬的孔隙率，从而降低了水泥砂浆内衬在输水过程中因钙及铝水化产物的析出造成的水质pH值升高及铝含量的升高，提高了内衬的耐腐蚀性及水质的卫生性能。
Nodular cast iron pipe anti-corrosion lining for conveying drinking water and manufacturing method
一种用于输送饮用水的球墨铸铁管防腐内衬及制作方法
LI NING (Autor:in) / WANG YING (Autor:in) / WANG ZHIQIANG (Autor:in) / SHEN YANYING (Autor:in) / WANG JUNCHANG (Autor:in) / MA ZONGYONG (Autor:in) / ZHAO HAIQING (Autor:in)
01.01.2021
Patent
Elektronische Ressource
Chinesisch
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