Category: Concrete Producer, The

Air test variability – Troubleshooting – Brief Article Q. Is it common to get different air readings when using a pressure meter and a roll-a-meter or volumetric meter? I continually get a difference of about 0.8% to 1%, but I feel very sure my meters are calibrated correctly. The higher reading is from the pressure […]

2001 excellence in safety awards Aggregate Industries, Colorado Brighton (#711), Broomfield (#710) Denver (Bannock #701), Elizabeth (#728), Franktown (#707), Golden (#731), Havana (#703), Huron (#718), Idaho Springs (#717), Johnstown (#736), Littleton (Littleton #725 Riverview #706) Longmont (Del Camino #721), Louisville (#723) Aggregate Industries. Massachusetts Saugus Anderson Concrete Corp., Ohio Columbus (Frank Road #2 Goodale #5, […]

Primed for action Jeff Gordon There’s a saying that you can’t put your foot in the same river twice. It’s much the same when it comes to delivering concrete. One day the jobsite is an easy shot. Other days, the pour requires a team of traffic engineers to plan truck routes. With myriad construction jobs […]

Thin reinforcement changes precast Tom Klemens Elements of science fiction and space-age technology have transformed our lives in many ways. So what might happen if a space-age, high-performance material is economical enough for use as internal reinforcement for concrete? We’re about to find out because a group of producers are ready to blast off with […]

Cement lab standards – comparing cement quality and performance – Brief Article – Editorial Q. We’ve just agreed to use a new cement supplier for a long-term project. Since this project may go for more than 2 years, we want to be sure that the cement characteristics don’t vary during the project. We are considering […]

Bridging the gap: exceptional partnering and ingenuity conquer tough concrete pours over the Potomac Bill Welgoss By any measure, the construction of a new Woodrow Wilson Memorial Bridge to replace the older Wilson Bridge, built in 1961, marks one of the most important transportation projects in the country. The old bridge, originally four lanes, was […]

Gray water recycling: tips on how concrete producers should evaluate recycling equipment and process Greg Vickers Third of three parts. Once a concrete producer has decided to install a concrete recycling system, he has some important choices to make about how to handle the gray water discharged from his reclaimer. Should the gray water–the water […]

Wheelbarrow with locking brake Jeep wheelbarrows feature a patented locking disk brake that makes it easier for contractors to control loads on hills, park on slopes, and dump out materials with precision. To activate the brake, simply depress the lever attached to the right handle and push in a button. The brake is released by […]

Looking beyond compressive strength: for the ideal slab on ground mix, producers should look beyond compressive strength and w/cm Pat Harrison Although concrete shrinkage is not easily measured or verified, it can be linked to the majority of floor slab failures. Up to 90% of maintenance problems with slabs on ground are found at separations, […]

New round silo collectors Don Talend New round, compact silo collectors that comprise the “O” Series are low-profile units with a tilt-back hinges that allow easy access to the filter media. These top-entry collectors’ gas-spring actuators are designed to allow the producer to open the top with little effort. There is no need to remove […]