EXTRA QUICK HARDENING AND HIGHLY FLOWABLE MORTAR COMPOSITION, EXTRA QUICK HARDENING AND HIGHLY FLOWABLE MORTAR AND EXTRA QUICK HARDENING AND HIGHLY FLOWABLE CONCRETE USING THE MORTAR

摘要

PPROBLEM TO BE SOLVED: To provide extra quick hardening and highly flowable mortar, which ensures excellent flowability and enough usable life, is excellent in strength development in a short period of time, is small in temperature dependency and has high reliability in terms of long term strength or a durability. PSOLUTION: The extra quick hardening and highly flowable mortar composition contains 100 pts. calcium aluminate, particularly having a molar ratio CaO/AlSB2/SBOSB3/SBof 0.75-1.5, 1-20 pts. silica fine powder, particularly containing acidic silica fume, 0.1-2 pts. lithium carbonate, 0.1-1 pt. alkali carbonate except lithium carbonate, 0.1-0.5 pt. organic acid and 150-250 pts. aggregate made spherical, particularly having 3.00 g/cmSP3/SPdensity and further contains a gas foaming material and/or fibrous material. The extra quick hardening and highly flowable mortar is prepared by kneading the mortar composition and water, particularly in a water/binder ratio of 30-40% and has 103 sec JSB14/SBfunnel flow value. The extra quick hardening and highly flowable concrete is constituted so that the mortar and coarse aggregate made spherical are blended. PCOPYRIGHT: (C)2006,JPO&NCIPI