Results 51 to 60 of about 436,366 (197)
Developments in the Built Environment, 2023 This work investigates the cementing efficiency, determined by the k-value, of a Brazilian fly ash. The analyzed variables are the fly ash fineness and content, the water content in the mixtures and age of concrete. Further, the influence of the fineness
Margareth da Silva Magalhães +2 more
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Effects of Fineness and Dosage of Fly Ash on the Fracture Properties and Strength of Concrete
Applied Sciences, 2019 This study focuses on evaluating the effects of the fineness of fly ash on the strength, fracture toughness, and fracture resistance of concrete. Three fineness levels of fly ash that respectively pass sieves—no. 175, no. 250, and no. 32—were
Chung-Hao Wu +3 more
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The influence of fly ash as substitute of cement in the durability of concrete [PDF]
, 2008 Limitation of transport capacity through the concrete is one of the key points in the improvement of the material’s durability. The use of fly ash as an admixture to concrete is widely extended; a general consensus has been established due to the pore ...
Moragues Terrades, Amparo +3 more
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, 2018 The highly viscous property of alkali silicate-activated cements is one of the critical challenges that hinder their wide application. The present study focuses on ameliorating the rheological performance of sodium silicate-activated fly ash/slag pastes ...
Zhu, Huajun +11 more
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Chemical, physical and morphological changes in weathered brine slurried coal fly ash [PDF]
, 2011 >Magister Scientiae - MScEnergy production from coal comes with an environmental cost because of the toxic waste produced during coal combustion such as coal ash and brine which are potential water and soil pollutants.
Nyale, Sammy Mwasaha
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Effect of Fly Ash on Geotechnical Properties of Expansive soil
Journal of Engineering and Sustainable Development, 2012 This paper investigated the effect of fly ash addition on geotechnical properties of expansive soil. Classification tests, consistency limits test, specific gravity test, compaction test, direct shear test, swell percentage, and swell pressure tests ...
Hayder A. Hasan
doaj
An assessment of the effects of pozzolanic activity on the behaviour of fly ash [PDF]
, 2000 This research used the ideas and methods, employed in previous studies of residual and weakly bonded soils, to help understand the shear strength and yielding characteristics of pozzolanically reacted fly ash.
Adams, Andrew, Adams, A.
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Dynamic Nonlinear and Residual Deformation Behaviors of the Fly Ash-Modified Loess
Shock and Vibration, 2021 Metastable loess soils can deform, inducing geological and engineering disasters. Therefore, the behavior of the loess under dynamic load is gaining massive attention from researchers to improve the strength of the soils.
Qian Wang +4 more
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Cementing Efficiency of Low Calcium Fly Ash in Fly Ash Concretes
, 2013 {"references": ["V. M. Malhotra, \"CANMET Investigations dealing with high volume fly ash concrete\", Advances in Concrete Technology, Canada Communication Group Publishing Co., Otowa,Canada,1992, pp 443-470", "R. H. Elmuth. \"Fly ash in Cement and Concrete\", Portland cement Association, 1987.", "I. A.
T. D. Gunneswara Rao, Mudimby Andal
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The Mechanical Activation of Fly Ash
Procedia Engineering, 2013 AbstractOne of the main options in looking for the new building materials is using of wastes from an industry as a replacement of the existing ingredient. This way is used in the concrete production too. Basic effort is to find a suitable replacement for economically and ecologically unfavorable cement by another component or components.
Hela, Rudolf, Jančaříková, Denisa
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