MORTAR COMPOSITION OF HIGH STRENGTH WHICH IS NON-SEPARABLE UNDERWATER USING OLIVINE, CAPABLE OF PREVENTING THE MORTAR COMPONENTS FROM BEING SEPARATED UNDERWATER AND OBTAINING EXCELLENT MECHANICAL STRENGTH

摘要

PURPOSE: A mortar composition of high strength which is non-separable underwater using olivine is provided to prevent solidification delay phenomenon through optimal combination and obtain stable performance by enhancing expression strength.;CONSTITUTION: A mortar composition of high strength which is non-separable underwater using olivine includes portalnd cement 25-50wt%, CSA 6-10wt%, gypsum 4-10wt%, powdery melamine plasticizer 0.2-2wt%, sepiolite powder 1-3wt%, HPMC(hydroxyproplyl methyl cellulose) 0.05-0.2wt%, hydrophilic PVA fiber 0.06-0.2wt%, forsterite with 2-4mm particle size of 10-20wt%, forsterite with 0.2-2mm or less particle size 25-50wt%, siloxane sealant-based waterproof agent 0.1-0.5wt%, and ethyl vinyl acetate-based powdered resin 1-5wt%. The fineness modulus of the forsterite is 2.8-3.5.;COPYRIGHT KIPO 2010