1.Regarding to the compressive strength of concrete repair material, the contractor mentioned in his revise submittal that he is noted and comply but he is still using the same material with same strength and the attached documentation of the same material RENDEROC TG (data sheet or brochure of Renderoc TG) shows 30 N/mm² at 28 days.

2.Page No. 12 - Regarding to Repair for concrete stains: The first category: the contractor has to give excellent finishing not to minimizing the color differences between the precast element finish and the repaired area finish. The second category: No stains or spots will be kept for weather to fade them away; the contractor has to repair with excellent finishing.  
