Effect of Sugar Waste on Cement Concrete

This investigation deals with the effects of the sugar- waste (Molasses) on the cement concrete. Studies were carried out on a cement paste, the types of different mortar mixes and five types of different concrete mixes, with and without the use of molasses. Molasses is one among the four types of sugar waste and it contains 40-60 percent of total sugar content depending upon types of molasses. While other sugar waste are Bassage, pressed mud and Discharging water containing mud. Among these wastes first two contains 3 percent of sugar and three contains negligible percent of sugar. In the present work molasses was collected sugar mill name. The effects of different dosage level 0, 0.1, 0.25, 0.50, 0.75, 1.00, 2.00, 3.00, 4.00, 5.00 percent of the molasses by weight of cement were studied for standard consistency, setting time, water – reduction behavior and air – entrainment in fresh concrete. The studies were also carried out for 7-day and 28-day compressive strength of the mortar, 7-day, 28-day, 56-day and 91-day compressive strength for five types of concrete mixes, 14-day tensile strength and flexural strength of concrete for the dosage levels 0, 0.10, 0.25, 0.50 percent of molasses by weight of cement. This test results indicates that molasses acts as accelerator upto 0.50 percent dose and then becomes retarder. Also it is slightly a water reducer and air entraining agent. The compressive strength of mortar, concrete, flexural strength and tensile strength of concrete get increased on using 0- 0.50 percent dose of molasses but the most favourable dose is 0.25 percent of molasses by weight of cement. Keywords: Air-entraining admixture, organic materials, microscopic bubbles, cohesion, durability, cavities