DURABILITY ENHANCED CONCRETE COMPOSITION INCLUDING WASTE QUARTZ GLASS MICROPOWDER CAPABLE OF ENHANCING THE DURABILITY OF CONCRETE WITHOUT A SEPARATE PHYSICAL PROPERTY MODIFYING PROCESS

摘要

PURPOSE: A durability enhanced concrete composition is provided to prevent the decline of the initial strength by maintaining the hydration reaction through partially substituting sand with waste quartz glass micropowder, and by mixing with a chromate additive and/or an amine additive as an admixture.;CONSTITUTION: A durability enhanced concrete composition comprises coarse aggregate, sand, cement, and water. The sand is substituted with waste quartz glass micropowder. The sand and the waste quartz glass micropowder are mixed in a weight ratio of 3:7-7:3. A chromate additive is mixed with the mixture of the sand and the waste quartz glass micropowder as an admixture. 1-7 parts by weight of chromate additive are mixed with 100.0 parts by weight of cement. An amine additive is additionally mixed as the admixture. 1-5 parts by weight of amine additive are mixed with 100.0 parts by weight of cement. The waste quartz glass micropowder has the specific gravity of 2-3, the particle size of 1um-5mm, and the aspect ratio of 1.0-3.0.;COPYRIGHT KIPO 2013