A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Nano hydrated calcium silicate crystal nucleus early strength agent as well as preparation method and application thereof
The invention belongs to the technical field of building materials, and particularly relates to a nano calcium silicate hydrate crystal nucleus early strength agent as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a crystal nucleus growth inhibitor, an emulsifier and water to obtain an emulsion; under a stirring condition, dropwise adding a soluble calcium source aqueous solution and a soluble silicon source aqueous solution into the emulsion; then adding alkali to adjust the pH value to 12 or above; and continuously stirring for a period of time. The crystal nucleus particle size of the nano calcium silicate hydrate crystal nucleus early strength agent prepared by the preparation method is mainly distributed in a range of 100-150nm, so that the early strength of concrete can be remarkably improved, and meanwhile, the later strength of the concrete is not reduced.
本发明属于建筑材料技术领域，具体涉及一种纳米水化硅酸钙晶核早强剂及其制备方法与应用。该制备方法包括如下步骤：将晶核生长抑制剂、乳化剂和水混合，得到乳液；在搅拌条件下，向所述乳液中滴加可溶性钙源水溶液和可溶性硅源水溶液；然后加碱调节pH值至12以上；继续搅拌一段时间，即得。利用该制备方法制得的纳米水化硅酸钙晶核早强剂的晶核粒径主要分布在100～150nm，可以显著提高混凝土早期强度，同时不降低混凝土后期强度。
Nano hydrated calcium silicate crystal nucleus early strength agent as well as preparation method and application thereof
The invention belongs to the technical field of building materials, and particularly relates to a nano calcium silicate hydrate crystal nucleus early strength agent as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a crystal nucleus growth inhibitor, an emulsifier and water to obtain an emulsion; under a stirring condition, dropwise adding a soluble calcium source aqueous solution and a soluble silicon source aqueous solution into the emulsion; then adding alkali to adjust the pH value to 12 or above; and continuously stirring for a period of time. The crystal nucleus particle size of the nano calcium silicate hydrate crystal nucleus early strength agent prepared by the preparation method is mainly distributed in a range of 100-150nm, so that the early strength of concrete can be remarkably improved, and meanwhile, the later strength of the concrete is not reduced.
本发明属于建筑材料技术领域，具体涉及一种纳米水化硅酸钙晶核早强剂及其制备方法与应用。该制备方法包括如下步骤：将晶核生长抑制剂、乳化剂和水混合，得到乳液；在搅拌条件下，向所述乳液中滴加可溶性钙源水溶液和可溶性硅源水溶液；然后加碱调节pH值至12以上；继续搅拌一段时间，即得。利用该制备方法制得的纳米水化硅酸钙晶核早强剂的晶核粒径主要分布在100～150nm，可以显著提高混凝土早期强度，同时不降低混凝土后期强度。
Nano hydrated calcium silicate crystal nucleus early strength agent as well as preparation method and application thereof
一种纳米水化硅酸钙晶核早强剂及其制备方法与应用
LI YANG (author) / YAO XIANGYU (author) / ZHAO YUXIANG (author) / TANG RUIFENG (author)
2023-12-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021
Nano calcium silicate hydrate crystal nucleus early strength agent and preparation method thereof
| European Patent Office | 2022
Two-dimensional nano hydrated calcium silicate early strength agent and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2020