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Individual and combined effects of Portland cement-based hydrated mortar components on alkali-activated slag cement
Graphical abstract Time-series analysis of the influence of ground hydrated cement paste, ground quartz sand and ground hydrated mortar with a cement:sand ratio of 1:1–3 on the properties of fresh and hardened alkali-activated slag pastes. Display Omitted
Highlights GHM strengthens AASC and allows slag substitution of up to 50%. GHM consists of a ‘nucleator seed’ and a ‘physically active’ additive. Blending AASC with GHM increases its two-day strength to 9.9MPa. A 1:1.5 cement:sand ratio yields the highest strength after 28–360days.
Abstract A comparative analysis was made of the individual and combined effects of the constituents of ground hydrated mortar (GHM) on the properties of fresh and hardened alkali-activated slag cement (AASC) pastes, which took into consideration properties such as the liquid/solid ratio, setting time, water absorption, density and compressive strength development. From the results obtained, it is evident that GHM is a multifunctional mineral additive that consists of a ‘nucleator seed’ and a ‘physically active additive’. Moreover, these components function both jointly and separately to micro-reinforce and fill the AASC paste, thereby accelerating its curing and providing a prolonged strengthening effect.
Individual and combined effects of Portland cement-based hydrated mortar components on alkali-activated slag cement
Graphical abstract Time-series analysis of the influence of ground hydrated cement paste, ground quartz sand and ground hydrated mortar with a cement:sand ratio of 1:1–3 on the properties of fresh and hardened alkali-activated slag pastes. Display Omitted
Highlights GHM strengthens AASC and allows slag substitution of up to 50%. GHM consists of a ‘nucleator seed’ and a ‘physically active’ additive. Blending AASC with GHM increases its two-day strength to 9.9MPa. A 1:1.5 cement:sand ratio yields the highest strength after 28–360days.
Abstract A comparative analysis was made of the individual and combined effects of the constituents of ground hydrated mortar (GHM) on the properties of fresh and hardened alkali-activated slag cement (AASC) pastes, which took into consideration properties such as the liquid/solid ratio, setting time, water absorption, density and compressive strength development. From the results obtained, it is evident that GHM is a multifunctional mineral additive that consists of a ‘nucleator seed’ and a ‘physically active additive’. Moreover, these components function both jointly and separately to micro-reinforce and fill the AASC paste, thereby accelerating its curing and providing a prolonged strengthening effect.
Individual and combined effects of Portland cement-based hydrated mortar components on alkali-activated slag cement
Rakhimova, N.R. (author) / Rakhimov, R.Z. (author)
Construction and Building Materials ; 73 ; 515-522
2014-09-24
8 pages
Article (Journal)
Electronic Resource
English
HMW , hydrated mortar waste , AASC , alkali-activated slag cement , PC , Portland cement , GGBFS , ground granulated blast furnace slag , GQS , ground quartz sand , GHCP , ground hydrated cement paste , GHM , ground hydrated mortar , <italic>S</italic> <inf>sp</inf> , specific surface area , <italic>l</italic>/<italic>s</italic> , liquid/solid ratio , <italic>C</italic>:<italic>S</italic> , cement:sand ratio , Granulated Blast-Furnace Slag , Alkali Activated Cement , Сement paste , Mortar , Waste management
Hydrated Portland cement as an admixture to alkali-activated slag cement
| Online Contents | 2015