Abstract
Damage to concrete structures that is cracking and porous. One of the damage factors is the setting time of the concrete which is too fast. The use of chemicals in the mechanical properties of concrete is well known, however, there is the waste released to make these chemicals. The waste material that can be used to overcome this problem is sugarcane molasses waste. The aim of this research is to determine the effect of sugarcane molasses waste on the setting time and its effect on the compressive strength of normal concrete. This research uses an experimental method and the variations taken are from the percentage content of sugarcane molasses waste. They are 1%, 2.5%, 5%, 7.5% and 10%. This research showed that the addition of sugar cane molasses waste resulted in an increase in the slump and setting time. The optimum value of slump and setting time was obtained at a variation of 7.5%. The result of compressive strength of concrete which is able to approach the compressive strength value of normal concrete is a variation of 1% where, other variations experience segregation due to the concrete bond still not being perfect.