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concrete hydration condition

importance of controlling temperature rise due to heat of hydration in

ambient conditions (Nanayakkara, 2003). There are three possible effects of excessive temperature rise in concrete due to heat of hydration of cement. 1.

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HEAT OF HYDRATION ANALYSIS IN CONCRETE

hydration process in the concrete to avoid cracking and shrinkage that affects the strength and durability of the concrete. In this paper, the authors show 50MPa concrete for the technical floor of the building from 36 to 40 floors

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Hydration Reaction and Strength Development of Lunar Concrete

Under vacuum condition, mixing water in fresh concrete evaporates leading to impeding of the cement hydration and strength development. In this study ...

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Hot Weather Concreting | Problems, Effects and Precautions in

ACI 305 “Hot Weather Concreting” defines hot weathers a combination of the following conditions that tends to impair the quality of the freshly mixed or hardened concrete: The success of many hot-weather concreting operations depends on the steps taken to slow the cement hydration reactions within the concrete and to minimize the rate of evaporation of

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numerical modeling of hydration process and temperature evolution

hydration process of cement and the resulting time evolution of temperature inside concrete. In general, boundary conditions ranging between isothermal and ...

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Types and Causes of Concrete Deterioration

But material limitations, design and construction practices, and severe exposure conditions can cause concrete to deteriorate, which may result in aesthetic, functional, or structural problems. Concrete can deteriorate for a variety of reasons, and concrete damage is often the result of a combination of factors.

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Numerical simulation of heat and mass transport during hydration of

With the aims of improving curing schedules, establishing appropriate curing conditions, improving mechanical properties and durability of cement-based ...

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The degree of cement hydration in concrete - Technische

Jan 1, 1978 — adsorbed water in fine capillaries under freezing conditions. c. the sulfate attack of hydrated cement regarding the role of Al-ions entering ...

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Hydration Heat and Autogenous Shrinkage of High-Strength

cement hydration process by the PCM leads to an early setting and a higher development of the compressive strength and elastic modulus of concrete at very early ages. The function of PCM could be worked below the

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modeling of hydration kinetics and shrinkage of portland

First of all, a hydration kinetics model for Portland cement is formulated based ... Under such curing conditions, the shrinkage of cement paste exhibits different. by F Lin · ‎2006 · ‎Cited by 21 · ‎Related articles

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