Current Illustrations on the net In between the strains: Unreinforced masonry structures (URMs) are Individuals fabricated from brick, mortar or clay and built in between the late 1800s and sixties. — Mortar is definitely the binding agent used to hold masonry constructions jointly. Modern mortar is typically a mixture of https://nextdoor.com/pages/west-hills-masonry-irvine-ca/