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England in years 1973–1974) CACs are applied to structural concrete much less often than Portland cements [ 1 – 3 ]. The deterioration of strength is related with a process of conversion of aluminate hydrates. In case of CACs the nature of hydration
1 Introduction Natural gas hydrates are crystalline solids composed of water and gas. The gas molecules are trapped in water cavities that are composed of hydrogen-bonded water molecules [ 1 ]. Typical natural gas composition includes methane
Introduction The kinetics and mechanism of hydration in various cementitious systems can be investigated by use of calorimetry [ 1 – 5 ]. The heat evolution curve reflects the rate of reactions occurring in the hydrating system
this way one may obtain a new binder of improved and/or changed properties. It is the effect of action of active additives that influence physical and chemical processes and arising products of hydration. The main products of hydration of
CIN development was similar in two groups (the CIN development was observed in four patients in standard hydration group and in five patients in intensive hydration group). However, the amount of saline was significantly higher in the standard
Introduction The dehydration of Portland cement paste plays an important role in the concrete structure explosive spalling at fire. Calcium silicate hydrate (CSH) and calcium hydroxide (CH) are the main hydration phases which
as a structuring and foaming agent as an egg white substitute ( Stasiak et al., 2023 ). When processing dried pulses, it is important to keep the crop hydrated. This process can range from 3 to 4 or even up to 10–12 h. Adequate water uptake is
consequences of various types of sugar on the cement hydration process of ordinary Portland cement. Similarly, Usman et al. [ 19 ] introduce sugar to concrete in varying concentrations, ranging from 0 to 1% by mass of cement, and assess its impact on the
pharmacokinetics. Experimental Materials Toddalolactone and oxypeucedanin hydrate (IS) (both purity >98%) were obtained from Chengdu Munster biotechnology Co. Ltd (Chengdu, China). HPLC-grade formic
agents are presently used all over the world. In desert (hot and dry) climate regions, self-curing concrete will increase concrete strength. According to the study, internal curing improves cement hydration at the start of the procedure. Self
