Roles of packing density and water film thickness in strength and durability of limestone fines concrete

• DOI: 10.1680/jmacr.16.00067
• Publication Date: 2017-04-13T07:45:02Z
• Authors: Leo Gu Li; Jia-Jian Chen; Albert K. H. Kwan
• Keywords: Cementitious; Sphere packing

Recent studies have revealed that the use of limestone fines (LF) to replace an equal volume cementitious paste in concrete could improve strength and durability reduce carbon dioxide footprint production. However, there are different views on how why LF as a replacement without changing mix composition increase performance hardened concrete, bearing mind not inherently cementitious. In this work, effects addition packing density water film thickness (WFT) mixes were investigated, roles WFT studied by correlating voids ratio (determined from density) WFT. Based results study, it is suggested improves mainly through increasing (the same decreasing ratio) mix.