The effects of aggregate characteristics on flow ability of mortar mixtures were investigated. Two types, five single sizes, and three gradations of fine aggregate were considered. Uncompacted voids of the aggregates were measured. Flow properties of 166 mortar batches made with the aggregates, together with different sand-to-cement ratios (s/c) and water-to-cement ratios (w/c), were evaluated ...

Concrete is one of the most widely used building materials today interms physical construction. made from a mixture offine, coarse aggregate, cement, and water with certain ratio, aswell as that are usually added to concrete mixtureduring or during mixing, changing properties tomake it more suitable in jobs economical, can alsobe other mixed needed if deemednecessary. Seashells be mix concrete....

The aim of this research was to investigate the validity of the Krieger–Dougherty model as a quantitative model to predict the viscosity of mortar depending on various aggregate sizes. The Krieger–Dougherty model reportedly predicted the viscosity of a suspension, which includes cement-based materials. Concrete or mortar incorporates natural resources, such as sand and gravel, referred to as ag...

Abstract This study addresses the meso-structure of recycled aggregate concrete with different admixture and c;uring condition. The RCA (Recycled aggregate) slag power fly ash curing condition steam was casted. X-ray CT (Computed tomography) used to obtain RCA, pore structure, aggregate, interface traction zone were analyzed. results show that not only increases volume but also makes morphology...

After removing the mold from secondary lining concrete of a tunnel, problems such as honeycomb and hemp surface easily occur. To obtain self-compacting fair-faced (SCFFC) that can meet strength requirements effectively solve above problems, this research prepared SCFFC with different mix proportions performed slump expansion, slump, J-ring expansion mechanical tests. Additionally, comprehensive...