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Properties Of Concrete
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Citations
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Investigation into the Effect of the Duration of Exposure on the Behaviour of GPC at Elevated Temperatures
TL;DR: In this article, the compressive strength of GPC up to temperatures of 1000 o C for varying duration of exposure time was investigated, and it was found that when tested at temperatures of 600 o C, 800 o C and 1000 oC, the GPC samples exhibited a higher compressivestrength (8-18%).
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Properties of cement mortars in fresh and hardened condition infl uenced by combined application of SCMs
TL;DR: KoPecsKó et al. as discussed by the authors investigated the properties of mortar mixtures with different substitution rates of supplementary cementing materials both in fresh and hardened conditions, and determined the consistence of mixtures by flow table test, and the change in workability was repeatedly measured until 120 minutes.
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Potential of carbon dioxide absorption in concrete
TL;DR: In this article, an artificial CO2 environment for curing concrete cubes using dry ice was created to verify CO2 absorption in concrete, and a comparative experimental study of water cured and CO2 cured concrete cubes, for penetration (using phenolphthalein indicator), and compressive strength was carried out.
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Developmental potentiality of insulating lightweight concrete based on cork and calcareous sand
TL;DR: In this article, the potential of construction materials development by valorizing industrial coproducts, mainly waste from the manufacture of cork panels used for the insulation of buildings and calcareous sand waste from quarries, was evaluated.
Setting, Hardening and Mechanical Properties of Some Cement / Agrowaste Composites - Part I
TL;DR: In this paper, the authors used barely and rice husks (BH & RH) after its conversion to ashes by firing at 600C (BHA and RHA) as replacing materials of Ordinary Portland cement (OPC) to prevent or at least to reduce the problems of air pollution and energy consumption.
References
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Properties of Concrete at Elevated Temperatures
TL;DR: In this paper, the thermal, mechanical, deformation, and spalling properties of concrete are discussed, and various properties that influence fire resistance performance, together with the role of these properties on fire resistance, are discussed.
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Development of an eco-friendly Ultra-High Performance Concrete (UHPC) with efficient cement and mineral admixtures uses
TL;DR: In this paper, a modified Andreasen & Andersen particle packing model is used to achieve a densely compacted cementitious matrix, and the results show that the influence of FA, ground granulated blast-furnace slag (GGBS) and limestone powder (LP) on the early hydration kinetics of UHPC is very similar during the initial five days, while the hydration rate of the blends with GGBS is mostly accelerated afterwards.
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Carbonation of cement paste : Understanding, challenges, and opportunities
Branko Šavija,Mladena Luković +1 more
TL;DR: In this article, a review summarises the state of the art regarding the understanding and consequences of carbonation of cement paste and summarises recent efforts regarding active use of carbonations as a tool for manipulating certain properties of cement based materials.
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High-performance fiber-reinforced concrete: a review
TL;DR: In this article, the authors present a comprehensive review of the mechanism of crack formation and propagation, compressive strength, modulus of elasticity, stress-strain behavior, tensile strength (TS), flexural strength, drying shrinkage, creep, electrical resistance, and chloride migration resistance of high performance fiber reinforced concrete.
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Investigation of coal bottom ash and fly ash in concrete as replacement for sand and cement
TL;DR: In this paper, the authors investigated the use of coal ash in concrete to replace sand with bottom ash waste and cement with fly ash and concluded that those experimental concrete mixes can be used in several structures (foundations, subbases, pavements, etc.) which will minimize the cost, energy and environmental problems to a great extent.