Abstract: A layered architectural water pervious concrete is provided. The concrete assembly includes a first layer of water pervious concrete preferably having 15%-25% void space capable of channeling water to the ground and underlying water table. Poured upon the pervious concrete layer, is a non-pervious concrete layer. Joints are formed through the non-pervious concrete layer, which preferably penetrates into the pervious concrete layer at least ¼ inch. Water flows from the top surface of the concrete assembly through the joints and into the porous concrete layer for distribution to the ground below.

Abstract: A layered architectural water pervious concrete is provided. The concrete assembly includes a first layer of water pervious concrete preferably having 15%-25% void space capable of channeling water to the ground and underlying water table. Poured upon the pervious concrete layer, is a non-pervious concrete layer. Joints are formed through the non-pervious concrete layer, which preferably penetrates into the pervious concrete layer at least ¼ inch. Water flows from the top surface of the concrete assembly through the joints and into the porous concrete layer for distribution to the ground below.

Abstract: A layered architectural water pervious concrete is provided. The concrete assembly includes a first layer of water pervious concrete preferably having 15%-25% void space capable of channeling water to the ground and underlying water table. Poured upon the pervious concrete layer, is a non-pervious concrete layer. Joints are formed through the non-pervious concrete layer, which preferably penetrates into the pervious concrete layer at least ¼ inch. Water flows from the top surface of the concrete assembly through the joints and into the porous concrete layer for distribution to the ground below.

Abstract: A layered architectural water pervious concrete is provided. The concrete assembly includes a first layer of water pervious concrete preferably having 15%-25% void space capable of channeling water to the ground and underlying water table. Poured upon the pervious concrete layer, is a non-pervious concrete layer. Joints are formed through the non-pervious concrete layer, which preferably penetrates into the pervious concrete layer at least ¼ inch. Water flows from the top surface of the concrete assembly through the joints and into the porous concrete layer for distribution to the ground below.

Abstract: A concrete slab construction is provided for use in both horizontal and vertical structures. The slab construction includes two layers. The first layer of concrete is a base layer comprised of traditional concrete materials. In addition, the concrete slab construction includes a second exterior layer of concrete which contains photocatalyst particles. Preferred photocatalytic materials include titanium dioxide in the anatase form. The concrete slab construction provides for reduction of green house gases and reduction in organic stains.

Abstract: Improved methods are provided for producing exposed aggregate concrete resistant to alkali silica reactivity. A concrete mixture is poured over a subgrade into a formwork. In a first embodiment, the concrete mixture includes a combination of lithium nitrate solution and concrete. In an alternative embodiment, the concrete mixture is a combination of concrete, aggregate and a lithium nitrate. Once the concrete mixture has been poured, the upper surface is floated or screed. Where aggregate has not been integrally mixed into the concrete mixture, the aggregate is surface seeded by broadcasting the aggregate upon the ASR resistant concrete surface. Thereafter, the concrete surface is troweled to embed the aggregate in the upper surface and provide a homogenous uniform surface. The aggregate is then exposed utilizing chemical retardants or mechanical apparatus.

Abstract: An improved method is provided for producing a color enhanced surface seeded exposed aggregate concrete. The method includes preparing a subgrade or framework for receipt of a concrete mixture. Fill sand and/or rebar may be utilized for structural strength. A concrete mixture is poured over the subgrade. The surface of the concrete is floated or screeded to an appropriate slope. A color hardener is applied to the concrete surface to create a colorized concrete surface. The color hardener is troweled to provide uniformity of color. An aggregate is broadcast into the colorized concrete surface and than troweled to fully embed the aggregate in place. The aggregate is then exposed utilizing a chemical retardant or mechanical apparatus. Thereafter, preferably the color enhanced surface seeded exposed aggregate surface is washed and sealed.