... with hydration products. The studies confirm that the increased consumption of portlandite for secondary hydration reactions followed by the additional formation of calcium silicate hydrate (CSH) and calcium aluminum silicate hydrate (CASH) phases in mine tailing-based mortars helped in achieving a quality...

... to be essential for satisfying the durability criteria. Overall, IOSA addition was found to be very helpful in improving the physicochemical, strength, and durability characteristics of the considered soil types. Keywords soil stabilization, lime, inorganic oxides, hydration, compressive strength, tensile...

...Zongyun Mo; Yunying Zhou; Ligai Bai This paper investigates the influence of metakaolin (MK) as well as various early-age curing regimes on late-age hydration of ultrahigh-performance concrete (UHPC) immersed in hot water. To reduce the consumption of cement, we partially substitute cement...

...; therefore, this article first reviews the effect of limestone in PC and then experimentally investigates its impact in HL. The results showed that limestone is active in HL. The limestone changed the microstructure of the HL paste and the nature of the phases formed upon hydration, with calcium...

... research has focused on studying the dependence of cement paste rheology on mixing, relatively fewer studies have focused on hydration and hardened properties of cement pastes. In this study, fresh and hardened cement paste properties were tested at two water-to-cement ratios ( w / c ): 0.36 and 0.45...

... of hydration and partial desorption of the internal curing agent, account for the sharing of the available internal curing water. The aforementioned approach was modified to consider these factors. It can be concluded that using lower amounts of SAP results in substantial reduction of autogenous shrinkage...

... measurements allowed identification of several stages in the early hydration of cement-based materials and the response can be interpreted in terms of hydration kinetics, physico-chemical processes and microstructural development. It is shown that the methodology can be equally applied to cement pastes...

...Nathan T. Todd; Prannoy Suraneni; W. Jason Weiss Accelerators are used to accelerate cement hydration, thereby reducing setting time and increasing early age strength gain. Accelerators are typically developed for use at low temperatures; however, they may be used in other applications such as high...

...V. Jafari Azad; P. Suraneni; O. B. Isgor; W. J. Weiss The Powers-Brownyard model is an analytical tool that is widely used to quantify the volume of gel solids, gel pores, capillary water, and unhydrated cement during the hydration process. These parameters, specifically the capillary and gel pore...

...Maxime Liard; Luka Oblak; Mohammed Hachim; Martin Vachon; Didier Lootens The mixing process used for cement, gypsum, mortar, or concrete has a strong effect on the hydration kinetics and setting properties, so that a standard mixing protocol has to be followed, including the mixing time...

...Dale P. Bentz; Tim Barrett; Igor De la Varga; W. Jason Weiss Conventionally, isothermal calorimetry and ASTM C186 heat of hydration results are reported on the basis of heat per mass of cement (powder), with typical units being Joules per gram (of cement), for example. Given that it is the filling...