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Effect of aggregate type and fly ash content on properties of self-compacting concrete

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2019
bitstream_8729.pdf (9.200Mb)
Authors
Savić, Aleksandar R.
Broćeta, Gordana
Aškrabić, Marina
Gajić, Aleksandar
Conference object (Published version)
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Abstract
The paper presents the results of experimental study of Self-Compacting Concrete in fresh and hardened state. Five mixtures were made, in which the content of the following components was varied: aggregates, fly ash in as-delivered state and the total amount of the paste (a mixture of water, mineral additive and a binder). Fresh concrete tests included determining the following properties: bulk density, slump-flow, V-funnel time, height ratio of the L-box, as well as ambient temperature measurement. In the hardened state the tested properties included: hardened concrete density, compressive strength, flexural strength, ultrasonic pulse velocity and water penetration depth. Tests have shown that the increase in the content of the paste can improve the workability, as well as reduce the negative effect of the larger fly ash particles presence on the properties of the fresh concrete.
Keywords:
concrete / physical and mechanical properties / fly ash / aggregate
Source:
Savremeni materijali, Zbornik radova, 2019, 38
Publisher:
  • Akademija nauka i umetnosti Republike Srpske
Projects:
  • Utilization of by-products and recycled waste materials in concrete composites in the scope of sustainable construction development in Serbia: investigation and environmental assessment of possible applications (RS-36017)
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URI
https://grafar.grf.bg.ac.rs/handle/123456789/2153
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  • Radovi istraživača / Researcher's publications
  • Катедра за материјале и конструкције
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