Naslov
Autogenous deformation of dolomite based self-compacting concretes with different mineral aditives

Autori
Gabrijel Ivan ; Jelčić Rukavina, Marija ; Bjegović Dubravka

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the RILEM International workshop on Performance-based specification and control of concrete durability / Bjegović, D. ; Beushausen, H. ; Serdar, M. - Zagreb : Zagreb : RILEM Publications S.A.R.L., 2014, 507-514

ISBN
978-2-35158-135-3

Skup
RILEM International workshop on Performance-based specification and control of concrete durability

Mjesto i datum
Zagreb, Hrvatska, 11.06.2014. - 13.06.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
self-compacting concrete; mineral additives; dolomite filler; autogenous deformation; heat of hydration

Sažetak
Early age cracking can influence the long-term performance of concrete structures to a certain extent. Compared to conventional types, high performance concretes with higher amount of cement paste as it is self-compacting concrete, has a greater potential for occurrence of early age cracking due to autogenous deformations. The main objective of the present paper is to analyse autogenous deformations of the self - compacting concretes made with dolomite powder and mineral additives as cement replacement. Ten self-compacting concrete mixtures has been studied where the control mixture included ordinary Portland cement and dolomite filler, while in nine other mixtures part of the cement was replaced by 20 – 40% fly ash, 5 – 15% metakaolin and 5 – 15% limestone. As hydration is the main governing power of autogenous deformation process, heat of hydration, as complementary method to autogenous deformations, was measured in order to present influence of different mineral additives on hydration process.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

POVEZANOST RADA