COST OPTIMIZATION OF QUICK HARDENING CONCRETE FOR NEW PRE-LINING SUPPORT METHOD

Abstract

In order to satisfy the quality, three special admixtures are usually employed for quick hardening concrete in New Pre-Lining Support (New PLS) method. Such concrete has tendency of higher material cost than normal concrete. Thus, the cost optimization of the quick hardening concrete is an important subject in order to apply the New PLS method widely. The present study discussed about the cost optimization of quick hardening concrete based on various investigations and constructions.