This thesis studies three sources of black liquor in Egypt and their effect on concrete workability, compressive and tensile strength, and their effect as set retarder. Firstly a review on pulping processes and black liquor treatment techniques is submitted, also the previous work on black liquor as concrete admixture is discussed. Afterwards the test program is proceeded by analyzing the black liquors, studying the effect of various concentrations and different doses of black liquors on concrete mixes and the effect of ages of black liquor during a year on the concrete performance. Our main...
This thesis studies three sources of black liquor in Egypt and their effect on concrete workability, compressive and tensile strength, and their effec...
