After all of the insulation was sprayed in, we started with the concrete floor, and that will be our final finished floor. After gettng some ideas from Wharton Hardware and Supply we rented the biggest grinder that we could. Since it is a three phase tool, we needed to rent a 70KW generator also. The crew from K&C Contruction began work as soon as the equipment arrived. They first did a metal grind at 20 grit, then 50, then 100. Next they applied a "grout sealant" to reduce the porosity of the concrete. Next, they did another grind on the grout sealant. After this, they used a concrete desnsifier that further reduces porosity of the concrete and adds considerable hardness and...
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