Naslov
Analysis of thermal properties of cement paste during setting and hardening

Autori
Mikulić, Dunja ; Milovanović, Bojan ; Gabrijel, Ivan

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
Nondestructive testing of materials and structures

Urednik/ci
Büyüköztürk, Oral ; Taşdemir, Mehmet Ali ; Güneş, Oğuz ; Akkaya, Yılmaz

Izdavač
Springer

Grad
Dordrecht

Godina
2013

Raspon stranica
465-471

ISBN
978-94-007-0723-8

Ključne riječi
cement paste, hardening, hydration, porous structure, thermal properties

Sažetak
An experimental investigation is made in order to study changes of thermal properties of hardening cement paste. Using a hot disc principle for determination of thermal properties, specific heat capacity, effusivity and thermal conductivity are analyzed during first 4 days of hydration. Specific heat capacity value changed only slightly during hydration. Thermal conductivity decreased with the progress of hydration 20% compared to initial value. Hydration process was monitored using ultrasonic pulse velocity (UPV) test. A discussion of results is made taking into account porous nature of cement paste and transformation of liquid and hardened phases i.e. water and clinker minerals, into hardened structure.The motivation for conducted research is improvement of numerical models for calculating temperature changes in mass concrete structures using hydration dependant thermal properties. Also, another field of application could be the quality control of cement based materials.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

POVEZANOST RADA