Concrete Stains and Dyes

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Concrete Artistry with a Competitive Edge

World of Concrete attendees see a diverse group of artisans apply their creativity... More

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One-Step Coloring

Several years ago, analysts estimated that about 0.5% of all flatwork concrete was... More

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In-Place Integral Color Doesn't Match Color Chip

We supply integrally colored concrete for decorative concrete flatwork in the area. Building owners often complain that the color of the in-place concrete doesn't match that on the color chip supplied by the coloring pigment manufacturer. We then get blamed for not supplying the right concrete. Are there any solutions to this problem? More

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The right way to truck-batch bagged pigment

Recently we supplied an integrally colored pea-gravel mix for a job that used textured vertical formwork. The contractor insisted on adding the dissolvable color bags at the jobsite just prior to placement. We dispatched 8-cubic-yard loads in standard 10-cubic-yard rear-discharge mixers. The driver reported that the contractor instructed him to run the mixer for about 4 to 5 minutes of full-speed drum rotation after throwing in 15 1-pound bags. Our belt placement operator later reported that he had to stop the conveyor several times to remove large pieces of undissolved paper bags. While we haven't heard of any problems on the job from the contractor, this doesn't seem to be the way things should be done. What's the correct procedure to eliminate any bag residue in the concrete? More

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Integrally Colored Tilt-Up Concrete
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Controlling Integral Color Uniformity in Concrete

We're supplying integrally colored concrete for a large architectural concrete project. We've supplied similar concrete previously but have always had trouble maintaining color uniformity. What steps can we take at the plant to minimize color variation? More

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Removing wood stains from concrete

After one of our customer-contractors poured an integrally colored patio at a new residential home, the homeowner had the carpenters add a railing to the adjacent redwood deck. Afterward, wood debris covered a portion of the patio. During the final walk-through at loan closing, the homeowner noticed a red stain on the tan-colored concrete. How can the contractor remove the stain to satisfy the owner without replacing the concrete? More

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