This paper investigates the physicomechanical properties of mortar containing high volume of fly ash (FA) as partial replacement of cement in presence of copolymer latexes. Portland cement (PC) was partially replaced with 0, 10, 20, 30 50, and 60% FA. Copolymer latexes were used based on 2-hydroxyethyl acrylate (2-HEA) and 2-hydroxymethylacrylate (2-HEMA). Testing included workability, setting ...

Abstract A measure of how easy it is to transport, cast, compact and surface finish fresh concrete without any segregation directly proportional workability concrete. The consistency indirectly measures its workability. VeBe test, slump test compaction factor are some the methods that can be used study quick determination strength properties an important element on large construction sites for ...

Scarcity and the high cost of natural river sand due to government restrictions are major problems for construction industry. It was observed that cement quarry dust ratio is higher in concrete mixes compared conventional used highway projects effects influenced by shape, surface & content micro fines dust. In this study, ratios were optimized obtain optimum strength, workability use using ...

It has become a research hotspot to explore raw material substitutes of concrete. is important the mechanical properties self-compacting concrete (SCC) with slag powder (SP) and rubber particle (RP) replacing cement coarse aggregate, respectively. 12 kinds composite modified (CMSCC) specimens were prepared by using 10%, 20% 30% SP 30%, 40%, 50% 60% RP. The rheological properties, microstructure...

The decades-long use of supplementary cementitious materials (SCMs) as replacements for ordinary Portland cement (OPC) by the and concrete industry is undergoing a resurgence in research activities related to goals addressing circular economy activities, well reduction CO2 emissions. Differences chemistry, mineralogy reactivity SCMs compared OPC impact fresh properties concrete. Some exhibit gr...