Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Alkali-free accelerator for early high-strength sprayed concrete
The invention belongs to the technical field of concrete accelerators, and relates to an alkali-free accelerator for early-strength and high-strength sprayed concrete and a preparation method of the alkali-free accelerator. The invention provides a liquid accelerator which does not contain chlorine, alkali and fluorine and is composed of aluminum sulfate octadecahydrate, a stabilizer, a suspending agent, an early strength agent and water. According to the invention, the problems of high corrosivity, no strength in the early stage, low strength in the later stage and high production pollution caused by fluorine and alkali ions in the traditional accelerator are solved. The accelerator provided by the invention has the advantages of no chlorine, no alkali and no fluorine, does not pollute the environment, does not harm human health, has no loss on the later strength of concrete, has small corrosivity, and does not influence the coagulation effect and shear strength of the accelerator on the concrete under the condition of not adding alkali.
本发明属于混凝土速凝剂技术领域，涉及一种用于早高强喷射混凝土的无碱速凝剂及其制备方法。本发明提供了一种液态速凝剂，不包含氯、碱、氟，由十八水合硫酸铝、稳定剂、悬浮剂、早强剂和水组成。本发明解决了传统速凝剂中氟、碱离子带来的腐蚀性大、前期无强度、后期强度低、生产污染性大的问题。本发明的速凝剂具有无氯无碱无氟的优点，不会污染环境，不会危害人体健康，不仅对混凝土后期强度无损失、腐蚀性小，且在不掺加碱的情况下不影响速凝剂对混凝土的凝结效果和剪切强度。
Alkali-free accelerator for early high-strength sprayed concrete
The invention belongs to the technical field of concrete accelerators, and relates to an alkali-free accelerator for early-strength and high-strength sprayed concrete and a preparation method of the alkali-free accelerator. The invention provides a liquid accelerator which does not contain chlorine, alkali and fluorine and is composed of aluminum sulfate octadecahydrate, a stabilizer, a suspending agent, an early strength agent and water. According to the invention, the problems of high corrosivity, no strength in the early stage, low strength in the later stage and high production pollution caused by fluorine and alkali ions in the traditional accelerator are solved. The accelerator provided by the invention has the advantages of no chlorine, no alkali and no fluorine, does not pollute the environment, does not harm human health, has no loss on the later strength of concrete, has small corrosivity, and does not influence the coagulation effect and shear strength of the accelerator on the concrete under the condition of not adding alkali.
本发明属于混凝土速凝剂技术领域，涉及一种用于早高强喷射混凝土的无碱速凝剂及其制备方法。本发明提供了一种液态速凝剂，不包含氯、碱、氟，由十八水合硫酸铝、稳定剂、悬浮剂、早强剂和水组成。本发明解决了传统速凝剂中氟、碱离子带来的腐蚀性大、前期无强度、后期强度低、生产污染性大的问题。本发明的速凝剂具有无氯无碱无氟的优点，不会污染环境，不会危害人体健康，不仅对混凝土后期强度无损失、腐蚀性小，且在不掺加碱的情况下不影响速凝剂对混凝土的凝结效果和剪切强度。
Alkali-free accelerator for early high-strength sprayed concrete
一种用于早高强喷射混凝土的无碱速凝剂
ZHANG HAITAO (Autor:in) / XU WEIXING (Autor:in)
01.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Early-strength liquid low-alkali accelerator, preparation method and sprayed concrete
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