Author(s):
1. Aleksandar Savić, Građevinski fakultet, Beograd, Serbia
2. Gordana Broćeta, Univerzitet u Banjoj Luci, Arhitektonsko-građevinsko-geodetski fakultet, Republic of Srpska, Bosnia and Herzegovina
3. Marina Aškrabić, Građevinski fakultet, Beograd, Serbia
4. Aleksandar Gajić, Građevinski fakultet, Beograd, Serbia

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.

Key words:
concrete,physical,and mechanical properties,fly ash,aggregate

Thematic field:
SYMPOSIUM A - Science of matter, condensed matter and physics of solid states

Date of abstract submission:
02.08.2018.

Conference:
Contemporary Materials 2018 - Savremeni Materijali