Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Retarder applicable to sulphate aluminum cement
The invention discloses retarder applicable to sulphate aluminum cement. The retarder is composed of, by weight, 7-60 parts of carbamide, 3-11 parts of sodium lignin sulfonate, 2-7 parts of dinaphthyl methane disulfonic acid sodium, 2-5 parts of water reducing agent and 30-70 parts of vermiculite. By means of the retarder, the coagulation speed of the sulphate aluminum cement can be effectively reduced, the flowability of sulphate aluminum cement slurry can be remarkably improved, and the water demand in the sulphate aluminum cement mixing process can be reduced. The carbamide is added into the retarder, the coagulation time of the sulphate aluminum cement can be prolonged, nitrogen nutrient elements required by the plant growth can be further released slowly after the cement slurry is hardened, and the nitrogen nutrient elements are supplied to plants in porous plant-growing concrete for meeting the plant growth requirements.
Retarder applicable to sulphate aluminum cement
The invention discloses retarder applicable to sulphate aluminum cement. The retarder is composed of, by weight, 7-60 parts of carbamide, 3-11 parts of sodium lignin sulfonate, 2-7 parts of dinaphthyl methane disulfonic acid sodium, 2-5 parts of water reducing agent and 30-70 parts of vermiculite. By means of the retarder, the coagulation speed of the sulphate aluminum cement can be effectively reduced, the flowability of sulphate aluminum cement slurry can be remarkably improved, and the water demand in the sulphate aluminum cement mixing process can be reduced. The carbamide is added into the retarder, the coagulation time of the sulphate aluminum cement can be prolonged, nitrogen nutrient elements required by the plant growth can be further released slowly after the cement slurry is hardened, and the nitrogen nutrient elements are supplied to plants in porous plant-growing concrete for meeting the plant growth requirements.
Retarder applicable to sulphate aluminum cement
GONG CHENCHEN (Autor:in) / HUANG QINGLIANG (Autor:in) / LU LINGCHAO (Autor:in) / WANG SHOUDE (Autor:in) / CHENG XIN (Autor:in)
28.10.2015
Patent
Elektronische Ressource
Englisch