Concrete high temperature curing

Loss of strength by high-temperature curing of concrete... 

The influence of temperature on the rate of strength development of concrete can be used to increase the early strength of concrete by steam curing. This process is sometimes applied to precast elements that, after initial curing at room temperature, are slowly brought to high temperature (e. g. 60 °C) in wet conditions for several hours [7]. 

The main attributes of properly cured epoxy systems are outstanding adhesion to a wide variety of substrates, including metals and concrete ability to cure over a wide temperature range very low shrinkage on cure excellent resistance to chemicals and corrosion excellent electrical insulation properties and high tensile, compressive, and flexural strengths. 

Alite-fluoroaluminate cement is particularly suitable for emergency repair works, where very fast setting and short-term strength development are desired. Other possible applications include shotcrete engineering and precast concrete product production. Alite-fluoroaluminate cement must not be used for steam curing or any applications at high temperatures, because the ettringite phase is thermodynamically unstable at temperatures above about 70°C. 

COBALT COMPOUNDS. Solid cobaltous chloride t ve films. Calcium chloride is often added to mor-was very corrosive to alloys 3003 and 5154 in lab- tar and concrete to accelerate curing and to develop oratory tests conducted under conditions of 100% high early strength. Sodium chloride may also be relative humidity at ambient temperature. Solid co- present, as a contaminant of the water and sand. In baltous nitrate caused mild attack (- 3 mpy) of 3003 laboratory tests, the addition of appreciable amounts alloy in the same tests. See also Ref (3) p. 84, (S) p. of either calcium chloride or sodium chloride to con-J3, Crete had little effect on the corrosivity of the con ... 

The values of the expansion coefficients pointing to Eurocode 6 [2] suggest that not all masomy elements expand with heat (cellular concrete cured and autoclaved lightweight aggregate concrete shrink at high temperatures). 

Xu, Q., Meng, T., Huang, M., 2012. Effect on nano-CaCOa on the compressive strength and microstructure of high strength concrete in different curing temperature. Applied Mechanics and Materials 121-126, 126—131. 

Concretes and mortars rapid cure early, high compressive strength even at low temperatures Galvanic protection of bridge decks Filling cable slots Areas where rapid cure and early strength are required... 

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