Studies of composites made by impregnation of porous bodies. 1. Sulphur impregnant in portland cement systems

Porous bodies formed by autoclaving portland cement-silica mixtures and by normally curing portland cement were characterized by measuring Young's modulus, microhardness and porosity. These bodies were impregnated almost completely with molten sulphur. The bodies were characterized again. It was found that the mechanical properties of the composites could be described by a form of Reuss' mixing law. Equations relating the improvement of the mechanical properties of the composite to the properties of the porous body were derived for both Young's modulus and microhardness.Les corps poreux pr\ue9par\ue9s \ue0 partir d'un m\ue9lange ciment-silice de portland dans un autoclave et du curage habituel du ciment portland ont \ue9t\ue9 caract\ue9ris\ue9s en d\ue9terminant le module de Young, la microduret\ue9 et la porosit\ue9. Ces corps ont \ue9t\ue9 impr\ue9gn\ue9s presque compl\ue8tement de soufre fondu. Les corps ont \ue9t\ue9 caract\ue9ris\ue9s de nouveau. On a constat\ue9 que les propri\ue9t\ue9s m\ue9caniques de composites ob\ue9issaient \ue0 une forme de la loi des m\ue9langes de Reuss. Les \ue9quations reliant l'am\ue9lioration des propri\ue9t\ue9s m\ue9caniques du composite aux propri\ue9t\ue9s des corps poreux ont \ue9t\ue9 \ue9tablies pour le module de Young aussi bien que pour le microduret\ue9.Peer reviewed: YesNRC publication: Ye