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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
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
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
References [1] Bölkény I. Measurement and analysis of hydrate formation , Proc. of 16th International
. , Sveshnikov A. , Semerák P. ( 2006 ), Early Stage of Cement Paste Hydration . In: Proceedings of International Workshop: Physical and Material Engineering . Bratislava : Slovak University of Technology , pp. 240 – 243 . ISBN 80-227-2467-X
compressive strength. The rise in temperature accelerated the reaction of hydration thus there is an early strength gain [ 20 ]. The incorporation of 5% of metakaolin as a SCM shows 18.75%, 15.9%, and 11.11% amplification in compressive strength of concrete
ettringite and gypsum present in cement will decompose at about 170 °C. When the temperature in the sample reaches around 300 °C, the carboaluminate hydrate and the Calcium Silicate Hydrate (CSH) start to decompose [ 6 ]. When the temperature reaches around
are listed as the filler effect, acceleration of the OPC hydration and the pozzolanic reaction of MK along with Calcium Hydroxide (CH). Thus, the obtained results exhibit 20% wt of MK as the optimum Ordinary Portland Cement (OPC) replacement level and
the reduction of the water-to-cement ratio (W/C). This last factor promotes the formation of internal hydration products characterized by an extremely fine texture, resembling a compact phase of an amorphous nature. It is interesting to note that the
phase change of the temperature is of utmost importance. The addition of the Sodium Thiosulfate Penta-Hydrate as phase change material (PCM) in the solar desalination system with solar collector increases the fresh water productivity up to 23%. In this
