MINERALS MIXING INGREDIENTS FOR PROMOTING CONCRETE STRENGTH WHICH SHORTENS A PRESTRESSED TIME OF INTRODUCTION OF MARINE BRIDGE WITHOUT A HIGH COST OF CURING METHOD OR INCREASE OF BINDER CONTENT AND MARITME CONCRETE INCLUDING THE SAME

摘要

PURPOSE: Minerals mixing ingredients for promoting concrete strength are provided to enhance the initial reactivity of a blast-furnace slag cement and increase the early age compression strength of a maritime concrete mixing blast-furnace slag cement by including Ca(SO4), Na2SO4, K2SO4, and SiO2 at the greatest proportion.;CONSTITUTION: Early strength type maritime concrete comprises blast-furnace slag cement as a binding material. The early strength type maritime concrete also comprises minerals mixing ingredients for promoting concrete strength. Mineral mixing ingredients for promoting concrete strength comprises 50-70 weight% of Ca(SO4), 10-30 weight% of Na2SO4, 5-15 weight% of K2SO4, and 5-10 weight% of SiO2 based on the total weight of the entire minerals mixing ingredients. 3-7 parts by weight of mineral mixing ingredients for promoting concrete strength is contained based on total weight 100.0 of mineral mixing ingredients for promoting concrete strength and the binding material.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Strength incidence rate compare to standard; (BB) 3 days; (CC) 7 days; (DD) 28 days; (EE) Classification