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Show i For Farm and Home Better Concrete Patches TX) do an A-l job of patching a con-x con-x Crete floor, it is essential to follow a few simple rules so that a strong bond is created between the new and old. Simply cleaning out the old materia) and filling the hole with new concretr won't work satisfactorily. Remove enough of the old concrete so the bottom of the hole is as wide as the top and uniformly deep. This wiD hold the patch in place. Dampen the old concrete to prevent water in the new mix from being absorbed. Be certain, cer-tain, however, that no surplus water is left in the hole. WRONG WAY r -, I RIGHT WAY Mix one part of cement and three parts sand, or use a ready-mixed variety of cement. Add only enough water to make a stiff mix which will require light tamping to fill the cavity. As soon as the mix is poured, smooth it with a wood float. When the concrete begins to harden, finish the surface lightly with a steel trowel. - Concrete shrinks some in drying, but if the patch is not more than two inches deep, the shrinkage will be so small that no allowance need be made. On deeper patches, smooth the ?v(ice so thai it is slightly above the level of j the floor. |
