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Properties Of Concrete
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Citations
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Journal ArticleDOI
Effect of Pressure and Heat Treatments on the Compressive Strength of Reactive Powder Concrete
TL;DR: In this paper, the compressive strength of RPC with variable pressure combined with heating rate, heating duration, and starting time of heating was evaluated. And the results showed that a heating rate at 50 °C/hr resulted in the highest compressive strengths about 40 % more than those at 10 or 100 °C /hr.
Dissertation
Synthèse et propriétés des mousses minérales
TL;DR: In this paper, the authors propose a tensioactif approach for the formation of mousses minerales, which reduces the tension of surface and stabilises a mousse aqueuse.
Journal ArticleDOI
Armoring of concrete against kbrn threats in defense and refuge buildings
TL;DR: In this article, the authors discussed the defense of the concrete against the chemical, biological, radiological and nuclear (CBRN) threats in the defense and refuge buildings was discussed.
Journal ArticleDOI
Risk of Thermal Cracking from Use of Lightweight Aggregate in Mass Concrete
TL;DR: In this article, the authors describe the results of a numerical investigation of incorporating lightweight aggregate (LWA) in mass concrete structures and show that the cracking risk of the mass concrete elements decreased as a greater quantity of LWA was used, regardless of element size.
Dissertation
Generic model for predicting the performance of macro-synthetic fibre reinforced concrete for industrial flooring applications
TL;DR: In this article, a generic linear model was developed to predict the residual flexural tensile strength of MSFRC at specific crack mouth opening displacements (CMOD) and are based on the macro-mechanical tests performed according to EN 14651.
References
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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.