Method of forming concrete floors and product of the method

A concrete floor formed as a product of a process comprising the steps of depositing wet concrete mix and roughly leveling the concrete and then floating the surface of the concrete to produce a more level surface, the step of depositing the concrete being performed according to a predetermined pattern selected to form the floor substantially as a monolithic unit, the combination of the steps of depositing, rough leveling and floating the concrete being selected in order to effectively densify the concrete and produce a thin upper layer formed substantially of water, sand and cement, allowing the concrete to stand for a period of at least approximately 24 hours and then removing a thin surface portion from the concrete with a grinder, the concrete floor being further characterized by a flat, porous surface having a sanded quality.

In a method for forming a concrete floor in a large unobstructed area, the steps comprising simultaneously depositing, rough leveling and densifying wet concrete mix with a vibrating screed supported by forms extending along opposite sides of the floor area in order to produce an upper layer of wet concrete with a thin upper layer being formed substantially of water, sand and cement, the simultaneous step of depositing, rough leveling and densifying the concrete being continued across the entire expanse of the area in order to form the concrete floor as a monolithic unit, allowing the concrete to stand until bleed water has risen to the surface and the concrete is sufficiently set up to support the weight of an operator, then floating the surface of the concrete by means of a power float in order to permit working of concrete having reduced plasticity, allowing the concrete to stand for an additional period of at least approximately 24 hours and then removing a thin surface portion from the concrete with a grinder in order to produce a flat, porous surface having a sanded quality.

A concrete floor formed within an unobstructed area as a product of a process comprising the steps of simultaneously depositing, rough leveling and densifying wet concrete mix with a vibrating screed supported by forms extending along opposite sides of the floor area in order to produce a layer of wet concrete with a thin upper layer being formed substantially of water, sand and cement, the simultaneous steps of depositing, rough leveling and densifying the concrete being continued across the entire expanse of the area in order to form the concrete floor as a monolithic unit, allowing the concrete to stand until bleed water has risen to the surface and the concrete is sufficiently set up to support the weight of an operator, then floating the surface of the concrete by means of a power float in order to permit working of concrete with reduced plasticity, allowing the concrete to stand for an additional period of at least approximately 24 hours and then removing a thin surface portion from the concrete with a grinder, the finished concrete floor being characterized by a flat, porous surface having a sanded quality.