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Properties Of Concrete
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Citations
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Temperature Distributions and Variations in Concrete Box-Girder Bridges: Experimental and Finite Element Parametric Studies
TL;DR: In this paper, a full-scale, experimental box-girder bridge segment and three dimensional finite element thermal studies were conducted to investigate the temperature distributions and variations in concrete bridges under environmental thermal loads, with particular reference to the influence of the thermal properties of concrete.
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The Use of Additives to Enhance Properties of Pre-Formed Foamed Concrete
TL;DR: In this paper, an experimental study of an enhancement of pre-formed foamed concrete, 1300-1900 kg/m3, by utilising two types of additives, silica fume and fly ash, to partially replace Portland cement and fine sand.
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Hardened properties of self-compacting concrete with different crumb rubber size and content
TL;DR: In this article, the effect of crumb rubber size and content on hardened characteristics of self-compacting concrete was investigated and the results showed that the use of crumbs had a negative effect on the hardened properties of concretes and the significant improvement was achieved with addition of all tire wastes types, for ductility.
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Performance evaluation and some durability characteristics of environmental friendly palm oil clinker based geopolymer concrete
S.M. Alamgir Kabir,U. Johnson Alengaram,Mohd Zamin Jumaat,Sumiani Yusoff,Afia Sharmin,Iftekhair Ibnul Bashar +5 more
TL;DR: In this article, the authors investigated the structural properties and some durability characteristics of lightweight geopolymer concrete and reported the highest compressive strength achieved was 415 MPa at 28 days where 100% POC (9−14 mm) was used as coarse aggregate POC clinker (POC) and oil palm shell (OPS) was employed as coarse aggregates in producing geopolymers concrete seven concrete mixtures were designed with varying coarse aggregate contents to develop eco-friendly geopolym concrete while other parameters were kept constant.
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Municipal incinerated bottom ash characteristics and potential for use as aggregate in concrete
TL;DR: The use of municipal incinerated bottom ash (MIBA) as aggregate in concrete applications has been assessed through the analysis and evaluation of the globally published data as mentioned in this paper, which showed that MIBA lightweight aggregate had similar properties to Lytag, though with marginally lower strength.
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.