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The Sealant, Waterproofing & Restoration Institute released the latest addition to its Technical Bulletin Series about air barriers.
Flatness and levelness are important factors for building owners.
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Concrete can be colored integrally or with color hardeners. Integral colors are added to concrete before placement. Color hardeners (also referred to as "dust-ons" and "dry-shakes") are broadcast as powders over the top of freshly struck concrete and are finished into the surface.
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The last thing you as a contractor or specifier want to hear when you complete a decorative, colored concrete installation (integral, dry-shake, stamped, textured, stenciled, or trowel finished) is that the owners are unhappy because the color wasn't what they ordered. Then you find yourself in the...
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When is the proper time to start curing decorative concrete that's textured using mats or skins and colored with a dry-shake hardener and release agent? Some people say curing should begin immediately, but whenever we try to use impermeable coverings, such as plastic or waterproof paper, we get...
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We wrote a job specification calling for application of a colored dry shake to 50,000 square feet of concrete floor. The contractor didn't read the specification and finished the concrete without applying the colored dry shake. Workers applied a membrane curing compound to the concrete. Is there...
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We're a bleach manufacturer, and we've just acquired a facility with a floor that contains a metallic-aggregate surface hardener. We want to install a high-build epoxy coating on the floor to resist bleach spills. How should we prepare the floor for coating?
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We're building a floor that calls for a white dry-shake to make it light-reflective. The specs also call for a hard troweled finish. We're concerned about burning the white surface. Is a stainless steel or plastic trowel better than an ordinary steel trowel? What else can we do to prevent burn...
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We've been asked to repair deteriorated joints in a 2-year-old concrete floor. The floor is 8 inches thick and is placed on a 4-inch-thick crushed stone base. The 3000-psi concrete was treated with 2 pounds per square foot of a dry shake hardener. Keyed joints are spaced 50 feet apart and there are...
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Why should you apply a dry shake to a slab on grade? The answer is that the surface quality obtained by the usual practices will not be adequate for every purpose. Frequently the top surface is likely to be of lower strength and have the least sound materials in the slab.