Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbon-reducing auxiliary agent for high-volume slag cement and preparation method of carbon-reducing auxiliary agent
The invention discloses a carbon-reducing auxiliary agent for large-volume slag cement and a preparation method thereof, and solves the technical problem that in the prior art, a function of enhancing the strength of commercially available large-volume slag cement does not exist. The composition comprises 5-20% of a nucleating agent; 0.05 to 0.6 percent of a dispersing agent; 20 to 50% of a polyol; the rest of water is supplemented to 100%; the nucleating agent is hydrated calcium silicate (xCaOySiO2zH2O, C-S-H), and the preparation raw materials comprise calcium nitrate, sodium metasilicate nonahydrate, a polycarboxylate superplasticizer and sodium hydroxide. The cement admixture is added in the slag cement grinding process, the process is simple, the cement admixture and a conventional commercially available cement grinding aid are used in an overlapped mode, the addition amount is only 0.1%-0.3% of the mass of cement, and the cement admixture aims at reducing the carbon emission of a unit product of slag cement, improving the strength of the cement and improving the strength of the cement at the same time.
本发明公开了一种大掺量矿渣水泥降碳助剂及制备方法，解决了现有技术中没有针对市售大掺量矿渣水泥提强的功能的技术问题。它包括晶核剂：5‑20%；分散剂：0.05‑0.6%；多元醇：20‑50%；剩余部分用水补齐至100%；所述晶核剂为水化硅酸钙（xCaO•ySiO2•zH2O，C‑S‑H），制备原料包括硝酸钙、九水偏硅酸钠、聚羧酸减水剂、氢氧化钠。本发明通过在矿渣水泥粉磨过程中加入该种水泥外加剂方式，工艺简单，与常规市售水泥助磨剂叠加使用，添加量仅水泥质量的0.1%‑0.3%，旨在降低矿渣水泥单位产品的碳排放量和提高水泥强度，同时改善水泥强度。
Carbon-reducing auxiliary agent for high-volume slag cement and preparation method of carbon-reducing auxiliary agent
The invention discloses a carbon-reducing auxiliary agent for large-volume slag cement and a preparation method thereof, and solves the technical problem that in the prior art, a function of enhancing the strength of commercially available large-volume slag cement does not exist. The composition comprises 5-20% of a nucleating agent; 0.05 to 0.6 percent of a dispersing agent; 20 to 50% of a polyol; the rest of water is supplemented to 100%; the nucleating agent is hydrated calcium silicate (xCaOySiO2zH2O, C-S-H), and the preparation raw materials comprise calcium nitrate, sodium metasilicate nonahydrate, a polycarboxylate superplasticizer and sodium hydroxide. The cement admixture is added in the slag cement grinding process, the process is simple, the cement admixture and a conventional commercially available cement grinding aid are used in an overlapped mode, the addition amount is only 0.1%-0.3% of the mass of cement, and the cement admixture aims at reducing the carbon emission of a unit product of slag cement, improving the strength of the cement and improving the strength of the cement at the same time.
本发明公开了一种大掺量矿渣水泥降碳助剂及制备方法，解决了现有技术中没有针对市售大掺量矿渣水泥提强的功能的技术问题。它包括晶核剂：5‑20%；分散剂：0.05‑0.6%；多元醇：20‑50%；剩余部分用水补齐至100%；所述晶核剂为水化硅酸钙（xCaO•ySiO2•zH2O，C‑S‑H），制备原料包括硝酸钙、九水偏硅酸钠、聚羧酸减水剂、氢氧化钠。本发明通过在矿渣水泥粉磨过程中加入该种水泥外加剂方式，工艺简单，与常规市售水泥助磨剂叠加使用，添加量仅水泥质量的0.1%‑0.3%，旨在降低矿渣水泥单位产品的碳排放量和提高水泥强度，同时改善水泥强度。
Carbon-reducing auxiliary agent for high-volume slag cement and preparation method of carbon-reducing auxiliary agent
一种大掺量矿渣水泥降碳助剂及制备方法
WU LILI (Autor:in) / HE KUNFU (Autor:in) / TAO CONGXI (Autor:in) / TENG ZHUOGUANG (Autor:in) / ZHOU JING (Autor:in)
14.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023
Low-carbon high-durability concrete carbon-reducing auxiliary agent and preparation method thereof
| Europäisches Patentamt | 2023