Influence of lime in mortar on the expansion of brick masonry

Mortars containing normally hydrated dolomitic lime caused greater expansion of brickwork piers than other mortars. Because the expansion of brickwork was much greater in the vertical direction than horizontally, however, and because the expansion was inhibited greatly by a relatively slight load, mortars containing normally hydrated dolomitic lime did not damage the brickwork from their expansion. The results of this study offer an explanation for the satisfactory performance of brick buildings with mortars containing normally hydrated dolomitic lime even though such mortars have great capacity for expansion.Les mortiers contenant de la chaux dolomitique normalement hydrat\ue9e causent une plus grande dilatation du briquetage des piliers que les autres mortiers. Parce que la dilatation du briquetage est plus consid\ue9rable verticalement que horizontalement et parce que la dilatation est grandement emp\ueach\ue9e par une charge relativement l\ue9g\ue8re, les mortiers contenant de la chaux dolomitique normalement hydrat\ue9e n'ont pas endommag\ue9 le briquetage par leur dilatation. Les r\ue9sultats de cette \ue9tude offrent une explication au comportement des b\ue2timents de briques dont le mortier contient de la chaux dolomitique normalement hydrat\ue9 e, m\ueame si de tels mortiers ont une grande capacit\ue9 de dilatation.Peer reviewed: NoNRC publication: Ye