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Properties Of Concrete
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Citations
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Journal ArticleDOI
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.
References
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Journal Article
Assessing Suitability of Margalla Crush for Ultra High Strength Concrete
TL;DR: In this paper, an attempt was made in the laboratory to produce ultra high strength concrete using Margalla aggregates, but this effort failed rendering Margalla crush as unsuitable for high and ultra-high strength concrete.
New techniques for the rehabilitation of concrete and steel structures
TL;DR: In this article, the authors present a survey of the state of the art in the field of dissertation, including research objectives and state-of-the-art methods.
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Development of lower shrinkage and reflection material for concrete pavement
Sung Woo Ryu,Hyosung Kim +1 more
TL;DR: In this paper, the authors focused on the development of a high performance concrete material for concrete paving with lower shrinkage and reflection of sunlight, based on a literature review, alternative mixes for paving are suggested.
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Estimating formwork striking time for concrete mixes
FO Okafor,DE Ewa +1 more
TL;DR: In this paper, the authors estimated the time for strength development in concrete cured up to 56 days, using nonlinear regression analysis performed on each experimental data set produced Strength-Age (S-A) curves from which Duration-Strength (D-S) models were deduced to estimate approximate time in hours for a particular strength development.