Results 21 to 30 of about 2,529,989 (344)

Effect of Thermal Parameters on Hydration Heat Temperature and Thermal Stress of Mass Concrete

open access: yes, 2021
To explore the influence of concrete thermal parameters on the hydration heat temperature and thermal stress of mass concrete, four feature positions of a dam foundation were chosen to analyze the changing process of temperature and stress by varying the
Yuqing Zhao   +4 more
semanticscholar   +1 more source

Exercise under heat stress: thermoregulation, hydration, performance implications and mitigation strategies.

open access: yesPhysiological Reviews, 2021
A rise in body core temperature and loss of body water via sweating are natural consequences of prolonged exercise in the heat. This review provides a comprehensive and integrative overview of how the human body responds to exercise under heat stress and
J. Périard, T. Eijsvogels, H. Daanen
semanticscholar   +1 more source

Effect of Citric Acid-Modified Chitosan on Hydration Regulation and Mechanism of Composite Cementitious Material System

open access: yesBuildings, 2023
The temperature stress caused by the large temperature difference is the main factor causing harmful cracks in large-volume concrete. The introduction of admixtures is beneficial to reduce the temperature difference inside and outside the large-volume ...
Liguo Wang   +8 more
doaj   +1 more source

Influence of MgO on the Hydration and Shrinkage Behavior of Low Heat Portland Cement-Based Materials via Pore Structural and Fractal Analysis

open access: yesFractal and Fractional, 2022
Currently, low heat Portland (LHP) cement is widely used in mass concrete structures. The magnesia expansion agent (MgO) can be adopted to reduce the shrinkage of conventional Portland cement-based materials, but very few studies can be found that ...
Lei Wang   +6 more
semanticscholar   +1 more source

Hydration of Ternary Blends Containing Steel Slag and Limestone by Considering the Curing Temperature Effect [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
The effect of the curing temperature on the hydration ternary blended cement based on limestone and processed steel slag was examined by measuring the degree of hydration, Apparent activation energy (Ea), and heat of hydration at three different curing ...
Mojtaba Hosseini   +2 more
doaj   +1 more source

Setting control of completely recyclable concrete with slag and aluminate cements [PDF]

open access: yes, 2016
A completely recyclable concrete (CRC) is designed to have a chemical composition equivalent to the one of general raw materials for cement production. By doing so, this CRC can be used at the end of its service life in cement manufacturing without the ...
De Belie, Nele   +3 more
core   +2 more sources

Influence of Cement Replacement with Sewage Sludge Ash (SSA) on the Heat of Hydration of Cement Mortar

open access: yesMaterials, 2022
The amount of fly ash from the incineration of sewage sludge is increasing all over the world, and its utilization is becoming a serious environmental problem.
E. Haustein   +4 more
semanticscholar   +1 more source

The impact of fire suppression tasks on firefighter hydration: A critical review with consideration of the utility of reported hydration measures [PDF]

open access: yes, 2016
BACKGROUND: Firefighting is a highly stressful occupation with unique physical challenges, apparel and environments that increase the potential for dehydration.
Orr, Robin Marc   +2 more
core   +1 more source

Study on Hydration Heat Coefficient of Mass Concrete Construction

open access: yesChemical Engineering Transactions, 2018
This paper aims to prevent and control the hydration heat crack by analyzing the hydration heat coefficient in a bridge construction project, in which process it explores the reasons and concrete parameters as well as takes corresponding control measures.
Hongli Wang
doaj   +1 more source

Geothermal heat use to eliminate hydrate formations in oil deposit injection wells [PDF]

open access: yesE3S Web of Conferences, 2021
The article is devoted to an actual issue: the development of internal downhole heat exchangers technology to combat hydration in injection wells. Purpose: development of conceptual solutions for the use of geothermal coolant in the internal well heat ...
Fyk Мykhailo   +3 more
doaj   +1 more source

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