Efflorescence

Pilot Concrete Project Makes Roads Safer, More Attractive
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Pilot Concrete Project Makes Roads Safer, More Attractive

For the first time, colored concrete safety barriers are ensuring safety on German... More

Metering System for Granules
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Metering System for Granules

G-Pack 30 is ideal for producers looking to improve the quality of their colored... More

Making a Green Pavement Gold, or Sunset Rose or Mesa Buff or….
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Making a Green Pavement Gold, or Sunset Rose or Mesa Buff or….

Pervious concrete is often described as looking like a gray Rice Krispies treat.... More

One-Step Coloring
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One-Step Coloring

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

Any Color, as Long as it's Green
Any Color, as Long as it's Green
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Any Color, as Long as it's Green

With its ability to manage surface water runoff, the construction industry has... More

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Concrete's Changing Colors

A patio looked great on the day we finished installing it. But within two weeks, it had deteriorated into a gray/white color instead of the terracotta/charcoal patio that was visible on the day it was installed. The concrete sealant was applied 24 to 48 hours after the concrete was first laid, and within two weeks, it had turned gray/white. The contractor then returned two weeks later, the patio was washed with a jet wash and then a second coat of sealant was applied, making the gray/white colour even worse. The patio is fine when it is wet (terra-cotta/charcoal), but when dry it becomes gray/white. The project was completed more than a year ago. The gray/white appearance apparently is salt bloom, which is naturally occurring. However, as you can see, the whole patio is affected and there are no crystalline forms present on the surface. What could the problem be, why did it occur, and can it be fixed? More

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Integrally Colored Tilt-Up Concrete
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Cures for paver efflorescence

We manufacture concrete pavers and are experiencing a severe efflorescence problem. Can we reduce efflorescence by using admixtures such as plasticizers or pozzolans? Or should we use silicone-type water repellents or film-forming sealers on the finished product? More

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Avoiding Efflorescence in Architectural Precast Concrete
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