Results 1 to 10 of about 148,041 (161)
Assessment of the MX3 hydration testing system in adults at rest and following exercise in the heat [PDF]
Physiological ReportsThis study examined the performance of MX3 hydration testing system for assessing hydration status at rest and following exercise. Twenty adults completed two matched exercise trials in warm‐humid conditions.
Xiujing Zhao +5 more
doaj +2 more sources
Study of heat of hydration of Portland cement used in Iraq
Case Studies in Construction Materials, 2017 This study aims to obtain the heat generated from cement hydration, effect of chemical properties and curing temperature on heat of hydration. Ordinary Portland cement used from different plants, which were north (COP-1), middle (COP-2) and south (COP-3)
Zainab Hashim Abbas, Hassen Shaker Majdi
doaj +3 more sources
Mechanisms of hydration heat inhibitors on the early heat release process of cement
Frontiers in Materials, 2022 We evaluated the effects of hydration heat inhibitors on the early hydration heat release process of cement and its main mineral components. We used a microcalorimetric method to determine the effects of various proportions and properties of hydration ...
Jiaoyang Lv, Bo Tian, Lihui Li, Lei Quan
doaj +1 more source
The Relationship Between Heat Stress and Physical Workload with Worker's Hydration Status in Tirtonadi Bus Station Surakarta [PDF]
E3S Web of Conferences, 2020 Terminal workers work with physical load activities every day and are in a hot work climate, which has the potential to experience status disturbances, potentially resulting in hydration problems.
Suryadi Iwan +4 more
doaj +1 more source
Influence and Mechanism Research of Hydration Heat Inhibitor on Low-Heat Portland Cement
Frontiers in Materials, 2021 A kind of microcapsule sustained-release–type hydration heat inhibitor (MSR) was prepared. The effect of MSR on semi-adiabatic temperature rise, setting time, and strength of low-heat Portland cement was investigated.
Fujie Jia +4 more
doaj +1 more source
Influence of Zinc-Saturated Zeolite on Portland Cement Hydration Kinetics
Advances in Materials Science and Engineering, 2022 This work examines the influence of zeolite saturated with zinc (SZ) on the early hydration of Portland cement. The measurements and results indicate that the microcalorimetric method allows continuous observation and determination of SZ’s influence on ...
Damir Barbir, Pero Dabic
doaj +1 more source
Impact factors of hydration heat of cemented tailings backfill based on multi-index optimization
Case Studies in Thermal Engineering, 2020 In order to obtain the impact factors of hydration heat of cemented tailings backfill, different evaluation indexes were selected and analyzed. The results showed that the hydration of cement was violent in the early stage of reaction.
Dingyi Wei +3 more
doaj +1 more source
Case Studies in Construction Materials, 2022 Mine water is rich in various chlorides, which will inevitably affect the performance of the cemented paste backfill (CPB). In this study, the TAM Air isothermal calorimeter was used, the effects of typical chlorides (NaCl, CaCl2 and MgCl2) in mine water
Shenyang Ouyang +8 more
doaj +1 more source
Heat of hydration in clays stabilized by a high-alumina steel furnace slag
Cleaner Materials, 2022 This investigation utilized isothermal calorimetry (IC) to quantify the heat of hydration of steel furnace slag (SFS)-stabilized clays to assess the chemical aspects of the stabilization. Specifically, kaolin and bentonite clays were each blended with 40%
Thien Q. Tran +2 more
doaj +1 more source
Climate change and the kidney [PDF]
, 2019 The worldwide increase in temperature has resulted in a marked increase in heat waves (heat extremes) that carries a markedly increased risk for morbidity and mortality.
Butler-Dawson, Jaime +12 more
core +1 more source