Uses of Dry Vinasse as a Friendly Environmental Material to Improve Properties of Cement Mortar and Concrete

Abstract

This study aims at using the sugar by-product (dry vinasse), as one of the concrete production requirements, instead of getting rid of them in vain. Dry vinasse was obtained by drying liquid vinasse at 250 ° C. In this study, dry vinasse is used as a friendly environmental material to improve properties of cement mortar and concrete, through studying its effect on setting time and compressive strength of cement mortar and concrete. Effect of dry vinasse on compressive strength of cement mortar and concrete by using different doses of dry vinasse 0 %, 0.2 %, 0.3 %, 0.4 %, and 0.5 % by weight content of cement is studied.Compressive strength was determined by standard specimens (40x40x160mm) for cement mortar and standard cubes specimens (150X150X150mm) for concrete. By cylinder specimens (150X300mm), the splitting strength was determined and the flexural strength was determined by beam specimens (100X100X500mm). All the specimens were cured in water and tested for 7 and 28days for cement mortar and concrete. The splitting strength and flexural strength were done for 28 days.It is found that, dry vinasse addition causes increase in setting times. With comparing the results of compressive strength of cement mortar and concrete with and without dry vinasse, it is showed that, there are noticeable increases in the results of compressive strength, splitting strength and flexural strength.