The Performance of Sugar Based Admixture for Concrete and Mortar with Age Beyond 28 Days: Potential Local Admixture for Innovative Concrete Technology

The development of concrete admixture goes along the development of concrete technology. It is understood that the need of admixture is to impart considerable physical and economic benefits with respect to concrete. Previous researches concluded that sugar based admixturessuch as sucrose, sugar, sugar cane liquid, perform as accelerator and retarder with dosages of 0.03% and 0.3% by weight of cement. This research wants to know the performance of sugar based admixtures (sucrose, sugar, and sugar cane liquid) for concrete and mortar of previous researches with age beyond 28 days (28 days, 56 days, and 84 days). Several mortar cubes and concrete cylinders specimens were produced by compressive strength desigR c' 30 MPa and divided into variants of plain, added by sucrose, sugar , and sugar cane liquid admixture of with composition 0.03% and 0.3% by cement weight. All specimens are cured and then getting for compressive test at 28, 56, and 84 days. This research meets conclusions as follow: (1) The admixture of sugar 0.03% by weight of cement increases the compressive strength of mortar 7.83% at age 56 days and 11.09% at age 84 days while sugar cane liquid 0.3% by weight of cement has compressive strength of mortar increase by 7.42% at age 56 days and 12.20% at age 84 days. The highest increase is performed by the admixture of sugar 0.3% by weight of cement that has compressive strength of mortar increase by 28.17% at age 56 days and 32.34% age 84 days. Fluctuative compressive strength is performed by admixture of sucrose 0.3% and sugar cane liquid 0.03% by weight of cement with sharp increase at age 56 days (11.64% and 73.63%) but droply decrease at age 84 days, however, it still higher than the compressive strength at age 28 days (3.44% and 6.55%), (2) The admixture of sugar 0.03% by weight of cement increases the compressive strength of mortar 4.50% at age 56 days and 7.78% at age 84 days, while sugar 0.3% by weight of cement increases the compressive strength of mortar 5.97% at age 56 days and 11.91% at age 84 days. The phenomenon of fluctuative compressive strength shown by admixture of sucrose 0.03% and sugar cane liquid 0.03% by weight of cement with sharp increase at age 56 days (54.35% and 33.32%) but droply decrease at age 84 days, however, it still higher than the compressive strength at age 28 days (29.08% and 5.36%), and (3) The admixture of sugar 0.03% and 0.3% by weight of cement show high increase of compressive strength for both mortar and concrete (4-33%). Fluctuative compressive strength phenomenon happened for both mortar and concrete with admixture of sugar cane liquid 0.03% by weight of cement