Hi. My mom want's a handrail on her from patio/steps. They are 4'x8'x8" slabs of old, medium aggregate, concrete. If it was straight cement, expanding or anchoring masonry bits and bolts would work great. But it's not cement. They're marbley old concrete slabs that could easily break. Is their a better option for anchoring into old concrete?:confused:
Good anchor bolt for old concrete???
