A method for preparing and finishing concrete is disclosed, comprising preparing a cement surface by a process comprising the admixture addition, to an industrial concrete mixer/pourer, of a formulation comprising nanosilica, after some or all water is combined and mixed with cement mix, sand and aggregate; followed by pouring and floating; followed by the addition, before or during combination, to the concrete surface, of a formulation comprising water, an alpha-hydroxy acid, a glycol alkyl ether and a polyethylene glycol.