A comprehensive study on the influence of supplementary cementitious materials on physico-mechanical, microstructural and durability properties of low carbon cement composites

A systematic study on sustainable low carbon cement – Superplasticizer interaction: Fresh, mechanical, microstructural and durability characteristics

“…Recently, the researchers at CSIR-Central Building Research Institute conducted the research and development on cementitious composites employing a variety of mineral admixtures/supplementary cementitious materials [ [96] , [97] , [98] , [99] , [100] , [101] , [102] , [103] , [104] , [105] , [106] ]. Anurag et al [ 41 ], in their study on SCMs such as fly ash, silica fume, low-grade calcined limestone (CLS), low-grade uncalcined limestone (UCLS), and superplasticizer assessed various properties such as fineness, setting time, consistency, compressive strength, and flexural strength. The aim of the study was to determine the optimum dosage of uncalcined and calcined limestone that can enhance the physico-mechanical properties of cement mortar, and to study the effect of uncalcined and calcined limestone with other SCMs as well as superplasticizer.…”

“…As shown by Anurag et al [ 41 ], there has been an increasing trend in SCM blended cement composite over the past few years. Also, it is evident from Fig.…”

Influence of cement replacement by metakaolin and limestone filler on the properties of UHPC

“…Naime, u [29] se navodi da dodatak silicijske prašine pokazuje poboljšanja tek nakon 7 dana starosti, odnosno s protekom vremena, dok je u [30] za metakaolin navedeno da smanjuje tlačnu čvrstoću 1. dana, a sveukupan povoljan učinak na tlačnu te čvrstoću na savijanje pokazuje tek nakon 14 dana starosti. Pad čvrstoće u ranijim starostima se za silicijsku prašinu pripisuje po prirodi sporijoj pucolanskoj reakciji [29], dok se u slučaju metakaolina utjecaj na tlačnu čvrstoću povezuje s tri učinka: punila, pucolanske reakcije i povećanja hidratacije cementa [31]. Pri tome se utjecaji punila i poticanja hidratacije cementa ostvaruju odmah, odnosno u prva 24 sata, dok pucolanska reakcije povećava tlačnu čvrstoću u razdoblju 7 do 14 dana od očvrsnuća [31].…”

“…Pad čvrstoće u ranijim starostima se za silicijsku prašinu pripisuje po prirodi sporijoj pucolanskoj reakciji [29], dok se u slučaju metakaolina utjecaj na tlačnu čvrstoću povezuje s tri učinka: punila, pucolanske reakcije i povećanja hidratacije cementa [31]. Pri tome se utjecaji punila i poticanja hidratacije cementa ostvaruju odmah, odnosno u prva 24 sata, dok pucolanska reakcije povećava tlačnu čvrstoću u razdoblju 7 do 14 dana od očvrsnuća [31]. Također, utjecaj imaju i udjeli navedenih materijala, gdje se za silicijsku prašinu u [24] kao optimalan udio za tlačnu čvrstoću navodi udio od 8 %, dok je za metakaolin taj udio 10 %-20 % [32], odnosno 5 %-20 % u [30].…”

Investigation of Preparation and Shrinkage Characteristics of Multi-Source Solid Waste-Based Cementitious Materials

“…In addition, Menglim et al [14] used fly ash and slag geopolymer as a stabilizer in highway engineering to stabilize waste asphalt mixture. Anurag et al [15] used cement solid waste-based cementitious material to stabilize macadam as the base material, and research has shown that adding 30% geopolymer has good crack resistance for the pavement base. Pathak [16] used slag-based polymerstabilized macadam as the base material and found that the strength of slag-based polymerstabilized macadam mixed with fly ash met the requirements of road base materials.…”