Effect of Curing Age on High-Strength Concrete at Low Temperatures

Marzouk, H.; Hussein, Amgad

doi:10.1061/(asce)0899-1561(1995)7:3(161)

Cited by 20 publications

(6 citation statements)

References 5 publications

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“…The most well-known effect of silica fume is the increase in strength [20,21,23,, including the compressive strength [20,23,, tensile strength [23,63,66,74,75,85] and flexural strength [62,69,75,86,87]. The strengthening is due to the pozzolanic activity of silica fume causing improved strength of the cement paste [39,82], the increased density of mortar or concrete resulting from the fineness of silica fume and the consequent efficient reaction to form hydration products, which fill the capillaries between cement and aggregate [53], the refined pore structure [58,79] and the microfiller effect of silica fume [79,80].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Cement-matrix structural nanocomposites

Chung

2004

Met. Mater. Int.

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This paper reviews cement-matrix structural nanocomposites, including those with particulate and fibrous reinforcements. Silica fume is valuable for improving numerous mechanical properties, in addition to enhancing the freeze-thaw durability, the vibration damping capacity, the abrasion resistance, the bond strength with steel rebars, the chemical attack resistance and the corrosion resistance of steel rebars. Furthermore, silica fume decreases the alkali-silica reactivity, the drying shrinkage, permeability, creep rate and thermal expansion. On the other hand, carbon nanofiber is not attractive, as it fails to compete with conventional discontinuous carbon fiber as a reinforcement.

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Section: Mechanical Propertiesmentioning

confidence: 99%

Cement-matrix structural nanocomposites

Chung

2004

Met. Mater. Int.

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“…Melnik [6] used the three-dimensional unsteady temperature field mathematical model to calculate concrete strength when cured in winter. Marzouk and Hussein [7] found the compressive strength of high-strength concrete to be directly proportional to the applied curing temperature. Khatib [8] studied the effect of low-temperature curing on the compressive strength of metakaolin concrete and found that the optimal quantity of metakaolin not only improved the concrete strength but also reduced the shrinkage.…”

Section: Introductionmentioning

confidence: 99%

Temperature Field of Concrete Cured in Winter Conditions Using Thermal Control Measures

Shi

Deng

Zhao

et al. 2022

Advances in Materials Science and Engineering

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In order to obtain the construction technology of concrete construction at extreme low temperature and ensure the construction quality of concrete in winter, this study investigated the temperature field and compressive performance of concrete specimens cured in the laboratory at a temperature of −10°C using different thermal control measures. A finite element model of the observed temperature field was then established and shown to be in good agreement with the test results. This model was applied to analyse the factors influencing thermally controlled low-temperature concrete curing in winter. The results showed that concrete cast at −10°C using rock wool insulation covering and heated formwork for thermal control met the relevant performance requirements. Finally, the proposed temperature field model and thermal control measures were successfully applied to the construction of a concrete box girder in winter conditions.

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“…Much research has been conducted in relation to the strength of concrete cured at low temperatures. Marzouk and Hussein [4] tested the compressive strength of high-strength concrete at different curing temperatures and found it was proportional to curing temperature. Khatib [5] studied the effect of low-temperature curing on the compressive strength of metakaolin concrete and found that, under low-temperature curing conditions, an optimized amount of metakaolin could both increase the concrete's strength and reduce shrinkage.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Deformation Behavior and Compressive Strength of Concrete Cast in Steel Tube Arches under Low‐Temperature Conditions

Shi

Deng

Guo

et al. 2020

Advances in Materials Science and Engineering

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Taking the construction of a concrete-filled steel tube (CFST) arch bridge (part of the Sichuan-Tibet Railway) in low temperatures as the test site, firstly the deformation performance test of concrete was carried out. Following this initial testing, measurement of compressive strength and shrinkage performance was conducted in large-diameter CFSTs under a variety of curing conditions. Experimental results showed that the expansion effect of Ca-Mg composite expansive agent in concrete was better than that of other expansive agents at any stage. Under low-temperature curing (0°C), the sampling strength of the large-diameter CFSTs reached 73.5% of the design strength at 28 d in the presence of a nonthermal curing system. e design strength itself was reached, when a curing system involving a thermal insulation film was applied, and use of this film also led to improvements in concrete shrinkage. e results suggested that a Ca-Mg composite expansive agent, combined with an insulation film curing system, should be the technique selected for concrete pumping construction of CFST arch bridges in Tibet.

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Effect of Curing Age on High-Strength Concrete at Low Temperatures

Cited by 20 publications

References 5 publications

Cement-matrix structural nanocomposites

Cement-matrix structural nanocomposites

Temperature Field of Concrete Cured in Winter Conditions Using Thermal Control Measures

Experimental Study on Deformation Behavior and Compressive Strength of Concrete Cast in Steel Tube Arches under Low‐Temperature Conditions

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