Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance pre-dispersed silica fume slurry and preparation method thereof
The invention discloses high-performance pre-dispersed silica fume slurry and a preparation method thereof. The high-performance pre-dispersed silica fume sulrry comprises the following components inparts by weight: 1 part of silica fume, 0.8-3 part of water and 0-0.05 part of a functional dispersing agent. The preparation method comprises the following steps: (1) preparing functional dispersionliquid; (2) weighing silica fume and the dispersion liquid in proportion; (3) performing high-speed mechanical cavitation dispersion on the mixture of the silica fume and the dispersion liquid; and (4) conducting dispersing for a specified time to obtain the high-performance pre-dispersed silica fume slurry. According to the high-performance pre-dispersed silica fume slurry prepared by the method,silica fume aggregates are effectively dissociated into single particles or slight aggregates, so that the dispersity and volcanic ash activity of silica fume are greatly improved, and concrete prepared from the silica fume slurry is good in workability, small in workability loss and high in strength. The silica fume slurry has no delayed coagulation component, does not influence the setting andhardening of concrete, has obvious early strength and steam curing early strength characteristics, is especially suitable for preparing prefabricated parts, can greatly shorten the curing time, reduces the curing energy consumption, saves the material cost, and has better properties.
本发明公开了一种高性能预分散硅灰浆及其制备方法；该高性能预分散硅灰浆的组成为：硅灰1份，水0.8‑3份，功能性分散剂0‑0.05份。制备方法为：（1）配制功能性分散液；（2）按比例称量硅灰与分散液；（3）对硅灰与分散液混合物进行高速机械空化分散；（4）分散指定时间得高性能预分散硅灰浆。本发明方法制备得到的高性能预分散硅灰浆，硅灰团聚体被有效解离为单颗粒或轻微团聚体，大幅提高了硅灰的分散性和火山灰活性，采用该硅灰浆制备的混凝土工作性好、工作性损失小、强度高。硅灰浆无缓凝成分，不影响混凝土的凝结硬化，早强及蒸养早强特性显著，尤适于预制构件的制备，可大幅缩短养护时间、降低养护能耗、节约材料成本且性能更优。
High-performance pre-dispersed silica fume slurry and preparation method thereof
The invention discloses high-performance pre-dispersed silica fume slurry and a preparation method thereof. The high-performance pre-dispersed silica fume sulrry comprises the following components inparts by weight: 1 part of silica fume, 0.8-3 part of water and 0-0.05 part of a functional dispersing agent. The preparation method comprises the following steps: (1) preparing functional dispersionliquid; (2) weighing silica fume and the dispersion liquid in proportion; (3) performing high-speed mechanical cavitation dispersion on the mixture of the silica fume and the dispersion liquid; and (4) conducting dispersing for a specified time to obtain the high-performance pre-dispersed silica fume slurry. According to the high-performance pre-dispersed silica fume slurry prepared by the method,silica fume aggregates are effectively dissociated into single particles or slight aggregates, so that the dispersity and volcanic ash activity of silica fume are greatly improved, and concrete prepared from the silica fume slurry is good in workability, small in workability loss and high in strength. The silica fume slurry has no delayed coagulation component, does not influence the setting andhardening of concrete, has obvious early strength and steam curing early strength characteristics, is especially suitable for preparing prefabricated parts, can greatly shorten the curing time, reduces the curing energy consumption, saves the material cost, and has better properties.
本发明公开了一种高性能预分散硅灰浆及其制备方法；该高性能预分散硅灰浆的组成为：硅灰1份，水0.8‑3份，功能性分散剂0‑0.05份。制备方法为：（1）配制功能性分散液；（2）按比例称量硅灰与分散液；（3）对硅灰与分散液混合物进行高速机械空化分散；（4）分散指定时间得高性能预分散硅灰浆。本发明方法制备得到的高性能预分散硅灰浆，硅灰团聚体被有效解离为单颗粒或轻微团聚体，大幅提高了硅灰的分散性和火山灰活性，采用该硅灰浆制备的混凝土工作性好、工作性损失小、强度高。硅灰浆无缓凝成分，不影响混凝土的凝结硬化，早强及蒸养早强特性显著，尤适于预制构件的制备，可大幅缩短养护时间、降低养护能耗、节约材料成本且性能更优。
High-performance pre-dispersed silica fume slurry and preparation method thereof
一种高性能预分散硅灰浆及制备方法
YANG FENGYUAN (Autor:in) / CHEN HONGYU (Autor:in) / LI BIN (Autor:in) / PENG BINGJIE (Autor:in) / FENG SIYUAN (Autor:in) / LIU YUHAO (Autor:in)
12.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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