Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effects of variable curing temperatures on autogenous deformation of blended cement concretes
Graphical abstract
HighlightsAutogenous shrinkage under variable temperature curing investigated.Concretes with blended cement (fly ash) tested.Prominent expansive behavior found in high temperature curing.Expansion could not be linked to fly ash content.Different curing paths likely result in different thermal coefficient developments.
AbstractShrinkage tests have been performed on blended Portland cement based early-age concrete with different w/c ratios, undergoing variable temperature curing. Results showed presence of induced non-negligible autogenous swelling which could mitigate part of the stresses related to shrinkage at very young concrete age. Recorded swelling was higher at higher curing temperatures and longer duration, especially pronounced for the low w/c mix. The swelling continued for several days after the temperature stabilized. Although not investigated directly, evidence to the nonlinear nature of the thermal expansion coefficient in young concrete has also been provided.
Effects of variable curing temperatures on autogenous deformation of blended cement concretes
Graphical abstract
HighlightsAutogenous shrinkage under variable temperature curing investigated.Concretes with blended cement (fly ash) tested.Prominent expansive behavior found in high temperature curing.Expansion could not be linked to fly ash content.Different curing paths likely result in different thermal coefficient developments.
AbstractShrinkage tests have been performed on blended Portland cement based early-age concrete with different w/c ratios, undergoing variable temperature curing. Results showed presence of induced non-negligible autogenous swelling which could mitigate part of the stresses related to shrinkage at very young concrete age. Recorded swelling was higher at higher curing temperatures and longer duration, especially pronounced for the low w/c mix. The swelling continued for several days after the temperature stabilized. Although not investigated directly, evidence to the nonlinear nature of the thermal expansion coefficient in young concrete has also been provided.
Effects of variable curing temperatures on autogenous deformation of blended cement concretes
Orosz, Katalin (Autor:in) / Hedlund, Hans (Autor:in) / Cwirzen, Andrzej (Autor:in)
Construction and Building Materials ; 149 ; 474-480
15.05.2017
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Effects of variable curing temperatures on autogenous deformation of blended cement concretes
| Online Contents | 2017
Effects of variable curing temperatures on autogenous deformation of blended cement concretes
| British Library Online Contents | 2017
Effects of variable curing temperatures on autogenous deformation of blended cement concretes
| British Library Online Contents | 2017
Effects of variable curing temperatures on autogenous deformation of blended cement concretes
| British Library Online Contents | 2017