AMDE M. AMDE, JAMES COLVILLE AND MATHEW A. MILTENBERGER
ABSTRACT
An experimental program was performed to investigate ways of improving the bond strength of masonry mortars through the use polymer additives, so that more efficient use of masonry could be realized. Results from a clay brick masonry mortar bond strength testing program investigating mineral and chemical admixtures are presented. Various admixtures, including a plasticizer, silica fume, numerous latecies, and two epoxies were added to and compared against a type S cement-lime mortar. Crossed couplets, cubes and cylinders were cured under both dry and moist conditions. Relatively high adhesive bond strengths were obtained with several polymers. A few polymers actually improved adhesive bond enough for cohesive bond failure to occur in the mortar.
F-35
