Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a liquid cement grinding aid, and belongs to the technical field of cement grinding aids. The liquid cement grinding aid is prepared from the following raw materials in percentage by weight: 15-22% of triethanolamine, 10-15% of dodecylbenzene, 10-15% of p-aminobenzene sulfonic acid, 1-3% of a sodium salt water reducing agent of aminobenzene sulfonic acid, 3-5% of sorbitol, 5-10% of triisopropanolamine, 3-5% of hydroxypropyl methyl cellulose, 3-5% of sodium lignin sulfonate, 5-10% of sodium humate, and the balance of water. According to the liquid cement grinding aid, through reasonable proportion of the raw materials, on the premise of less amount of admixture, the yield within a unit time can be up to 15% above, the cement strength can be increased to 3 MPa above for three days, and the cement strength can be increased to 5 MPa above for 28 days.
The invention discloses a liquid cement grinding aid, and belongs to the technical field of cement grinding aids. The liquid cement grinding aid is prepared from the following raw materials in percentage by weight: 15-22% of triethanolamine, 10-15% of dodecylbenzene, 10-15% of p-aminobenzene sulfonic acid, 1-3% of a sodium salt water reducing agent of aminobenzene sulfonic acid, 3-5% of sorbitol, 5-10% of triisopropanolamine, 3-5% of hydroxypropyl methyl cellulose, 3-5% of sodium lignin sulfonate, 5-10% of sodium humate, and the balance of water. According to the liquid cement grinding aid, through reasonable proportion of the raw materials, on the premise of less amount of admixture, the yield within a unit time can be up to 15% above, the cement strength can be increased to 3 MPa above for three days, and the cement strength can be increased to 5 MPa above for 28 days.
Cement grinding aid composition and chlorine-free liquid cement grinding aid containing same
| Europäisches Patentamt | 2021