Studying The Properties of Mortar Produced Using Juss as a Partial Substitute for Cement

Recently, many enterprising attempts have been made to create more sustainable cement mortar mixes using modern technologies. Modified mixtures are a promising part of green infrastructure, which contributes to reducing environmental impact and cost. Determining the properties of modified cement mortar using Al Juss binder (JB) is the focus of this study. JB is a locally made binder from heated white stone (gypsum stone) near the Deir Ezzor region, Syria. The cement, which is the main element in the cement mortar, is replaced with different JB ratios of 0%, 10%, 25%, 50 and 75% of total cement weight. The results revealed that the compressive strength at 28 days of age of 10% JB-mortar was 26.5 MPa, matches type M-mortar (20 MPa), and 25% JB can be used in type S-mortar. As a result, it has been confirmed that cement-JB mixture mortars containing 10% or 25% of JB do not meet the properties achieved by control cement mortars. However, they possess acceptable properties such as compressive and flexural strength, initial and final setting time, and expansion value of the cement.