Profile: St Marys Cement Inc. is a distributor of cement and related construction products. We provide services for cement, pulp & paper, aluminum and metals, film, chemicals, agricultural products, financial services, energy & international trade industries. Our silica fume blended Portland cement consists of Portland cement and silica fume, in which the silica fume content is 8% of the total mass, which is ideal for high performance concrete. Our type S mortar cement is a higher bond strength and lower air content cement for use in mortar for unit masonry construction. N Portland lime can be used for load-bearing masonry above or below grade where greater bond strength is required.