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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.
Journal ArticleDOI
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.
Journal ArticleDOI
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 ArticleDOI
POFA: A Potential Partial Cement Replacement Material in Oil Palm Shell Lightweight Aggregate Concrete
TL;DR: In this paper, the authors used palm oil fuel ash (POFA) and oil palm shell (OPS) as lightweight aggregates to produce lightweight aggregate concrete with 35 MPa, which is significantly higher than control OPS concrete.
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Mechanical properties and thermal behaviour of two-stage concrete containing palm oil fuel ash
TL;DR: In this article, the experimental results on the performance behavior of POFA in developing physical and mechanical properties of two-stage concrete were presented. But, the experiments were performed on pre-packaged mass concrete, where thermal cracking due to extreme heat rise is of great importance.
IoT based monitoring and control of concrete drying conditions in construction phase of new-production residential buildings
TL;DR: In this paper, the authors determine whether it is technically possible and financially feasible to actively steer the construction site management to maintain at all times indoor conditions that are optimal for drying of concrete with the help of real-time IoT-based monitoring technology, and additionally support or even replace current humidity measurement process.
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Comparative Analysis of Strength of Concrete Produced from Different Fine Aggregates
T.C Nwofor,D.B Eme +1 more
TL;DR: In this paper, a sieve analysis of river sand and grit aggregates was carried out and the results showed that the aggregates fell within the upper and lower limits of grading requirement.
Journal Article
Flexural Performance of Bamboo-Reinforced Foamed Aerated Concrete Beams
TL;DR: In this paper, the performance of foamed aerated concrete beams with bamboo splints as tensile reinforcement was evaluated for load-deflection behaviour, failure mode, and flexural moments.