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Delayed coagulation type concrete admixture and preparation method thereof
The invention discloses a delayed coagulation type concrete admixture and a preparation method thereof. The delayed coagulation type concrete admixture comprises, by weight, 25-35 parts of a delayed coagulation component, 10-18 parts of a water reduction component, 45-55 parts of a drought strength component, 8-16 parts of a water retention component and 85-135 parts of water. The delayed coagulation component is prepared from 10-18 parts of sodium gluconate, 10-18 parts of cane sugar, 6-12 parts of citric acid, 4-10 parts of phosphate, 12-22 parts of maltodextrin and 3-9 parts of auxiliary components. According to the concrete admixture prepared from the delayed coagulation component, the drought strength component, the water reduction component, the water retention component and water according to a certain proportion, on the basis of ensuring that the use indexes of the admixture reach the standard, the hydration of C3A or gypsum in cement is inhibited, the setting time is significantly prolonged, meanwhile, the crack resistance of concrete is improved, the outstanding effect of the admixture on the concrete is reflected, and development of concrete manufacturing and related construction with special requirements on setting time are met.
本发明公开了一种缓凝型混凝土外加剂及其制备方法，包括缓凝组份、减水组份、旱强组份、保水组份和水，缓凝组份、减水组份、旱强组份、保水组份和水的重量份为：缓凝组份25‑35份、减水组份10‑18份、旱强组份45‑55份、保水组份8‑16份和水85‑135份，缓凝组份包括葡萄糖酸钠10‑18份、蔗糖10‑18份、柠檬酸6‑12份、磷酸盐4‑10份、麦芽糊精12‑22份、辅助组份3‑9份，将缓凝组分、旱强组份、减水组份、保水组份及水按照一定配比得到的混凝土外加剂，在保证外加剂使用各项指标达标的基础上，抑制水泥中C3A或石膏水化速度、延长凝结时间方面有着显著的提升，同时提高混凝土抗裂性，体现出外加剂在混凝土效果上的突出作用，满足了在凝结时间上有特殊要求的混凝土制作和相关施工的开展。
Delayed coagulation type concrete admixture and preparation method thereof
The invention discloses a delayed coagulation type concrete admixture and a preparation method thereof. The delayed coagulation type concrete admixture comprises, by weight, 25-35 parts of a delayed coagulation component, 10-18 parts of a water reduction component, 45-55 parts of a drought strength component, 8-16 parts of a water retention component and 85-135 parts of water. The delayed coagulation component is prepared from 10-18 parts of sodium gluconate, 10-18 parts of cane sugar, 6-12 parts of citric acid, 4-10 parts of phosphate, 12-22 parts of maltodextrin and 3-9 parts of auxiliary components. According to the concrete admixture prepared from the delayed coagulation component, the drought strength component, the water reduction component, the water retention component and water according to a certain proportion, on the basis of ensuring that the use indexes of the admixture reach the standard, the hydration of C3A or gypsum in cement is inhibited, the setting time is significantly prolonged, meanwhile, the crack resistance of concrete is improved, the outstanding effect of the admixture on the concrete is reflected, and development of concrete manufacturing and related construction with special requirements on setting time are met.
本发明公开了一种缓凝型混凝土外加剂及其制备方法，包括缓凝组份、减水组份、旱强组份、保水组份和水，缓凝组份、减水组份、旱强组份、保水组份和水的重量份为：缓凝组份25‑35份、减水组份10‑18份、旱强组份45‑55份、保水组份8‑16份和水85‑135份，缓凝组份包括葡萄糖酸钠10‑18份、蔗糖10‑18份、柠檬酸6‑12份、磷酸盐4‑10份、麦芽糊精12‑22份、辅助组份3‑9份，将缓凝组分、旱强组份、减水组份、保水组份及水按照一定配比得到的混凝土外加剂，在保证外加剂使用各项指标达标的基础上，抑制水泥中C3A或石膏水化速度、延长凝结时间方面有着显著的提升，同时提高混凝土抗裂性，体现出外加剂在混凝土效果上的突出作用，满足了在凝结时间上有特殊要求的混凝土制作和相关施工的开展。
Delayed coagulation type concrete admixture and preparation method thereof
一种缓凝型混凝土外加剂及其制备方法
QIAO YONGLIANG (author) / WANG SIYU (author) / LIU QI (author)
2021-03-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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