Preventing autogenous shrinkage of HPC by internal curing

The effect of internal curing on the structural behaviour of large high-performance concrete specimens having different amounts of pre-soaked porous lightweight aggregate was investigated. The results show that the use of lightweight aggregate in high-performance concrete can effectively reduce autogenous shrinkage through improved hydration of cement.On a \ue9tudi\ue9 les effets de la cure interne sur le comportement structural de gros sp\ue9cimens de b\ue9ton \ue0 haute performance contenant des quantit\ue9s diff\ue9rentes de granulats l\ue9gers poreux pr\ue9-tremp\ue9s. Les r\ue9sultats indiquent que l'utilisation du granulat l\ue9ger dans le b\ue9ton \ue0 haute performance peut r\ue9duire de fa\ue7on efficace le retrait endog\ue8ne gr\ue2ce \ue0 une meilleure hydratation du ciment.Peer reviewed: YesNRC publication: Ye