The damage on the concrete in the form of crack can lower the quality of the conctrete itself as a building structure. It is necassary to repar the damage so that the srtegth of the concrete return to normal. This research was conducted with the aim of finding a mixture of materials with the appropriate composition in order to restore te strength of thedamage concrete by using new modified mixture. The material used in this study are sugar cane bagasse from suggar mill waste and resin catalyst insead of water and binder. The mixture was made using five variations in the ratio of volume of resin catalyst and sugar cane bagasse, those are 1:0,4, 1:0,53, 1:0,67, 1:0,8, and 1:1. This research examines how the mechanical character of the speciment that have been made from the mexture. The result of the reseacrh have been carried out that the addition of sugar cane bagasse inn a mixture with resin catalyst content coontinued to incrase in the compressive strength value. The older the concrete also increases the compressive strength. The highest compressive strength is obtained by the mixture with a ratio of 1:1, wich is 96,18MPa. Grouting materials that have been made are also not effective when injected so thtah requires greater compared tp grouting material and mixture of cement and water.