ABSTRACT

Five mortars, comprising three Commercial Repair Mortars (CRM1, CRM2 and CRM3) and two laboratory made mortars (M45 and M60), were selected for investigation. A ring test similar to the one described in ASTM C 1581-04 was adopted. Direct uni-axial tensile strength, free shrinkage, and tensile relaxation were measured on dog bone specimens measuring 170 × 40 × 40 mm in the prismatic section.