A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fluorine-free alkali-free liquid accelerator and preparation method thereof
The invention relates to the technical field of concrete additives, in particular to a fluoride-free alkali-free liquid accelerator and a preparation method thereof. The preparation method comprises the following steps: adding a suspending agent, a dispersing agent and a thickening agent into water, conducting stirring to prepare a modification suspension, adding a coagulant and an active agent into water to prepare a main modification agent, mixing the modification suspension and the main modification agent, adding a stabilizer and a defoaming agent, and conducting stirring to obtain the accelerator. The coagulant provided by the invention can reduce an addition amount in cement, meets a requirement on the setting time of concrete, reduces the springback amount of sprayed concrete, does not contain harmful components, and is green and environment-friendly.
本发明涉及混凝土添加剂技术领域，具体地说，是一种无氟无碱液体速凝剂及其制备方法。制备方法包括如下步骤：将悬浮剂、分散剂、增稠剂加入水中搅拌制成改性悬浮液，将促凝剂和活性剂加入水中制成改性主剂，混合改性悬浮液和改性主剂，添加稳定剂和消泡剂搅拌即制得所述速凝剂。本发明的促凝剂可以降低在水泥中的添加量，满足混凝土的凝结时间要求，降低喷射混凝土的回弹量，并且不添加有害组分，绿色环保。
Fluorine-free alkali-free liquid accelerator and preparation method thereof
The invention relates to the technical field of concrete additives, in particular to a fluoride-free alkali-free liquid accelerator and a preparation method thereof. The preparation method comprises the following steps: adding a suspending agent, a dispersing agent and a thickening agent into water, conducting stirring to prepare a modification suspension, adding a coagulant and an active agent into water to prepare a main modification agent, mixing the modification suspension and the main modification agent, adding a stabilizer and a defoaming agent, and conducting stirring to obtain the accelerator. The coagulant provided by the invention can reduce an addition amount in cement, meets a requirement on the setting time of concrete, reduces the springback amount of sprayed concrete, does not contain harmful components, and is green and environment-friendly.
本发明涉及混凝土添加剂技术领域，具体地说，是一种无氟无碱液体速凝剂及其制备方法。制备方法包括如下步骤：将悬浮剂、分散剂、增稠剂加入水中搅拌制成改性悬浮液，将促凝剂和活性剂加入水中制成改性主剂，混合改性悬浮液和改性主剂，添加稳定剂和消泡剂搅拌即制得所述速凝剂。本发明的促凝剂可以降低在水泥中的添加量，满足混凝土的凝结时间要求，降低喷射混凝土的回弹量，并且不添加有害组分，绿色环保。
Fluorine-free alkali-free liquid accelerator and preparation method thereof
一种无氟无碱液体速凝剂及其制备方法
CAO YULIN (author) / LI YANHUA (author) / YU XIAOLEI (author) / WANG JINHU (author) / JIAO RUQIANG (author) / YANG BIN (author) / TENG JIN (author) / GONG CHANGFENG (author) / SHEN XIULONG (author) / CHEN YANQING (author)
2022-01-04
Patent
Electronic Resource
Chinese
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