Stamped Concrete Basic Instructions
Planning and Preparation, The planning and preparation for placing and finishing textured concrete should take virtually everything into account such as: form work, sub-grade materials, concrete mix design, placing methods, obstacles, color base and release color, finishing accessibility, texturing tool layout, drains and locations of specialty features, manpower and weather. Form work should always take into account the modular unit of the desired textured pattern. With the layout of tile, brick, and slate patterns extra attention should be paid to squareness and modular sizing. A minimum of 1/4″ per foot slope should be allowed for drainage.
Sub-grade should be damp and consistent for placing a minimum 3 ½” thick slab. Thin spots will setup faster, thicker ones slower, this can also be planned.
Concrete mix design, 3/8″ maximum aggregate size ,minimum 2000 psi @ 28 days. Do not use calcium chloride additives. A reliable Redi-mix concrete company will be able to supply this mix. During hot weather conditions the use of water reducing and retardant additives in the mix is recommended.
Obstacles or any adjacent walls and flat work must be protected from concrete, color and colored release with a clear 2 mil visqueen available from your tool rental supplier.
Placing Methods will vary with every job, whether you use a pump, wheelbarrow, or chutes start with a slump of no more than 5″. Place approximately 1/3 of the truck load, add water, and place another 1/3 of the truck load, add water, and place the balance of the truckload. Always place the concrete and add water in the same direction as you plan on moving the rows of tools. This method of placement helps to insure the proper timing element for Texturing.
Color and coloring, The two basic methods of coloring concrete for the base color currently available are integral color and dust-on color. Intregal color is a coloring placed in the concrete mix by your concrete company. Dust-on color is applied during the finishing process. Depending on the color desired it is recommended that dust-on coloring be used for all concrete texturing applications. Both types of coloring are available from your textured tool rental supplier .
Colored Release should be applied as soon as the finishing process has been completed. Dust – on the colored release as evenly as possible always fluffing the material in the bucket with your hand prior to throwing it onto the slab. Colored release is available from your textured tool rental supplier .