Techniques for demolishing concrete that don't involve mechanical breaking.
The expanded line of dust control systems includes industrial-grade HEPA vacuums for large-scale applications.
The Dual Range Ziplevel with optional built-in high-precision scale offers an alternative to rotary lasers.
Research shows soybean oil improves surface durability.
During the winter of 2002 and 2003, western New York experienced a significant increase in scaling and spalling concrete.
In Part 1 of our series on the importance of being able to read contract specifications, we look at reading blueprints.
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QUESTION: We have been asked to treat an interior concrete slab's surface inside a store. The concrete is about three years old, but the store is only now ready to open. The unheated shell was exposed to winter weather for two seasons. The design originally called for a stained concrete floor. This...
It's possible that you as a contractor will never have to face up to the problems that air entrainment can cause when it's either too high or too low in concrete.
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I have an issue with a customer about her sidewalk surface spalling. She called me in February saying it was popping off in pieces. The sidewalk was placed about seven months earlier in June of the previous year. I am sure she is salting the sidewalk and causing this. I have a bag of rock salt in...
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Home builders here in the Denver area recently have had a rash of scaling driveways. Literally hundreds of driveways constructed over the past two to four years are showing isolated to widespread scaling. Our firm and others have met with the builders to help determine the causes. We have conducted...
The RT-5SW is a new long-range, dual-slope laser for large-scale earthmoving operations. It features remote control that enables operation from distances up to 1000 feet, yet it still retains five-arc-second accuracy.
If global warming predictions for weather come true, there will be a greater frequency of hurricanes, tornadoes, and strong storms throughout the coming years. So designing homes to sustain minimal damage resulting from natural disasters will be increasingly important.
Mix Microseal with water onsite to form a deep-penetrating, alkali-resistant water-repellent emulsion.
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Stamped concrete and pool popouts are the topic of this month's problem clinic.
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Our experience is that a one-year waiting period is not needed for concrete that is well made, well finished, of adequate strength, has undergone a short period of air drying, and has an effective air-void system. Concrete that does not meet these criteria is always vulnerable to scaling when it...
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As the least regulated and least sophisticated of all segments of the concrete industry, scaling and spalling problems in residential concrete should come as no surprise. Although both the American Concrete Institute (ACI) and the Building Officials and Code Administrators International (BOCA) have...
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Scaling of concrete driveways and sidewalks occurs all too often during the first season’s exposure to cyclic freezing and thawing.
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Across the Midwestern states last December, there was a much greater accumulation of snowfall than usual. Ground temperatures, as a result, tended to remain around freezing. With little snow in January and temperatures frequently fluctuating above and below freezing, exterior concrete slabs...
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In the past year or so I've had problems with scaling and delaminations while placing and finishing floors.
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Soon after Harbor Towers in Boston was built in 1972, residents complained about water leaking into their units. Over the next several years, saltwater from winds coming off the sea penetrated the porous concrete and corroded the steel reinforcement. Carbonization reduced the alkalinity of the...