Early Age Creep and Shrinkage of High Performance Concrete

Proceedings of Hipermat 2012 3rd International Symposium on UHPC and Nanotechnology for High Performancs Construction Materials 2012
Andīna Sprince, Leonīds Pakrastiņš, Aleksandrs Korjakins, Genādijs Šahmenko, Ģirts Būmanis

This research deals with elastic and time-dependent deformations of high performance concrete reinforced with polyvinyl alcohol (PVA) fibers. The early age drying creep in compression and shrinkage were experimentally studied. Three concrete mixes with a different amount of fibers were developed and prepared. The concrete specimens were tested in a controlled constant temperature and with a constant level of moisture. The compression strength and modulus of elasticity were determined and compared with those of the reference concrete. The results indicate that in the early age the creep of concrete with PVA fibers reduces the deformation, but after a longer time of hardening it exhibits higher creep deformation than the reference concrete without fibers.

Atslēgas vārdi
PVA fibers, creep, shrinkage, creep coefficient, compression strength, modulus of elasticity

Sprince, A., Pakrastiņš, L., Korjakins, A., Šahmenko, G., Būmanis, Ģ. Early Age Creep and Shrinkage of High Performance Concrete. No: Proceedings of Hipermat 2012 3rd International Symposium on UHPC and Nanotechnology for High Performancs Construction Materials, Vācija, Kassel, 7.-9. marts, 2012. Kassel: Kassel University Press, 2012, 309.-315.lpp. ISBN 978-3-86219-264-9. e-ISBN 978-3-86219-265-6.

Publikācijas valoda
English (en)