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A platform for research: civil engineering, architecture and urbanism
All-solid waste nano hydrated calcium silicate gel early strength agent as well as preparation method and application thereof
The invention discloses an all-solid waste nano hydrated calcium silicate gel early strength agent and a preparation method and application thereof.The all-solid waste nano hydrated calcium silicate gel early strength agent is prepared through the steps that calcium carbide slag, phosphorus slag and lithium slag react to generate hydrated calcium silicate (C-S-H) and hydrated calcium aluminosilicate (C-A-S-H) gel, and then under the wet grinding condition, the all-solid waste nano hydrated calcium silicate gel is obtained; the particle sizes of the C-S-H gel and the C-A-S-H gel can be reduced to the nanometer size, a good filling effect and a good crystal nucleus effect can be provided in the cement hydration process, particularly, the C-A-S-H crystal nucleus can induce formation of C-A-S-H in a hydration product, and better mechanical performance and corrosion resistance are achieved. The crystal nucleus early strength agent can obviously accelerate the hydration process of cement, improve the generation amount of hydration products, shorten the setting time of cement paste by more than 45%, and improve the 12h compressive strength of cement mortar by more than 230%.
本发明公开了一种全固废纳米水化硅酸钙凝胶早强剂及其制备方法和应用，该全固废纳米水化硅酸钙凝胶早强剂利用电石渣、磷渣和锂渣反应，生成水化硅酸钙(C‑S‑H)及水化硅铝酸钙(C‑A‑S‑H)凝胶，然后，在湿磨条件下，C‑S‑H凝胶和C‑A‑S‑H凝胶的粒度可降低到纳米尺寸，能够在水泥水化过程中提供良好的填充效应和晶核效应，特别是C‑A‑S‑H晶核，可诱导水化产物中C‑A‑S‑H的形成，具有更好的力学性能及抗腐蚀性能。该晶核早强剂可显著加快水泥的水化进程，提高水化产物生成量，使水泥净浆的凝结时间缩短45％以上，同时提高水泥砂浆12h抗压强度230％以上。
All-solid waste nano hydrated calcium silicate gel early strength agent as well as preparation method and application thereof
The invention discloses an all-solid waste nano hydrated calcium silicate gel early strength agent and a preparation method and application thereof.The all-solid waste nano hydrated calcium silicate gel early strength agent is prepared through the steps that calcium carbide slag, phosphorus slag and lithium slag react to generate hydrated calcium silicate (C-S-H) and hydrated calcium aluminosilicate (C-A-S-H) gel, and then under the wet grinding condition, the all-solid waste nano hydrated calcium silicate gel is obtained; the particle sizes of the C-S-H gel and the C-A-S-H gel can be reduced to the nanometer size, a good filling effect and a good crystal nucleus effect can be provided in the cement hydration process, particularly, the C-A-S-H crystal nucleus can induce formation of C-A-S-H in a hydration product, and better mechanical performance and corrosion resistance are achieved. The crystal nucleus early strength agent can obviously accelerate the hydration process of cement, improve the generation amount of hydration products, shorten the setting time of cement paste by more than 45%, and improve the 12h compressive strength of cement mortar by more than 230%.
本发明公开了一种全固废纳米水化硅酸钙凝胶早强剂及其制备方法和应用，该全固废纳米水化硅酸钙凝胶早强剂利用电石渣、磷渣和锂渣反应，生成水化硅酸钙(C‑S‑H)及水化硅铝酸钙(C‑A‑S‑H)凝胶，然后，在湿磨条件下，C‑S‑H凝胶和C‑A‑S‑H凝胶的粒度可降低到纳米尺寸，能够在水泥水化过程中提供良好的填充效应和晶核效应，特别是C‑A‑S‑H晶核，可诱导水化产物中C‑A‑S‑H的形成，具有更好的力学性能及抗腐蚀性能。该晶核早强剂可显著加快水泥的水化进程，提高水化产物生成量，使水泥净浆的凝结时间缩短45％以上，同时提高水泥砂浆12h抗压强度230％以上。
All-solid waste nano hydrated calcium silicate gel early strength agent as well as preparation method and application thereof
全固废纳米水化硅酸钙凝胶早强剂及其制备方法和应用
TAN HONGBO (author) / KONG XIANGHUI (author) / GU XIANYUE (author) / DENG XIUFENG (author) / MA BAOGUO (author) / LEE SANG-KOOK (author) / JIAN SHOUWEI (author) / HUANG JIAN (author)
2022-11-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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