Naslov
Estimation of setting time in concrete through modelling of ultrasonic parameters

Autori
Gabrijel, Ivan ; Pintar, Mario

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

Izvornik
Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time / Azenha, Miguel ; Schlicke, Dirk ; Benboudjema, F. ; Jedrzejewska, Agnieszka - : RILEM Publications SARL, 2018, 695-700

ISBN
978-2-35158-202-2

Skup
SynerCrete'18 - Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time

Mjesto i datum
Funchal, Portugal, 24.10.2018. - 26.10.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
setting, cement, ultrasonics

Sažetak
In a standardized procedure initial and final setting in mortar or concrete is determined from penetration resistance test. A wide variety of different test methods has been explored which are sensitive to the transformation of cement composites from a fluid to solid state. Different suggestions on how to determine initial and final setting from these measurements were given by their authors but up today there is no method which would be generally accepted and which would serve as a new standard for setting time measurement. In this paper a methodology of estimating setting time from ultrasonic measurements is given. Ultrasonic data for two concrete mixtures is modelled with exponential model using a curve fitting procedure. Model parameters representing time/age are compared with setting time determined by penetration resistance test.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA