LIQUID CURING ACCELERATOR, RAPID CURING CEMENT/CONCRETE USING THE SAME AND METHOD OF PRODUCING RAPID CURING CEMENT/CONCRETE

摘要

PROBLEM TO BE SOLVED: To provide a liquid curing accelerator for rapid curing cement/concrete to be efficiently produced and rapidly worked which suppresses rebound of sprayed cement/concrete and separation of materials even in the existence of water, and which can work well even at a place containing air gap such as a crack, and to provide a method of producing the rapid curing cement/ concrete.;SOLUTION: The liquid curing accelerator comprises Al, S, Na and F where 7 to 12 pts.wt. of Al as Al2O3 16 to 22 pts.wt. of S as SO3, 0.4 to 6 pts.wt. of Na as Na2O and 0.5 to 7 pts.wt. of F are contained, in which solid concentration is 20 to 50%, preferably further comprises an organic acid. The rapid curing cement/concrete comprises the liquid curing accelerator and cement/ concrete. The method of producing the rapid curing cement/concrete comprises the steps of feeding the liquid curing accelerator and cement/concrete separately, and mixing them together at the joining point of feeding pipes.;COPYRIGHT: (C)2002,JPO