The need for a new masonry test standard: A case study of mortar shear bond strength
During a minor earthquake of magnitude 4.4, part of a newly constructed stone veneer wall at a home in Northern California collapsed. Based on records of nearby instruments, shaking at the site of the house was at most approximately 0.10g. (The house was designed for lateral shaking of 0.33g.) According to the owner, more than a dozen stones fell from the top corner of one exterior wall during this earthquake (shown in Figures 1 and 2). The veneer at several other walls shifted slightly outward near the top, producing bulges in the wall face.