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There has been a number of important changes included in the masonry codes and standards that will become referenced in 2009.
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During Patrick Murphy's eight years as president of American PolySteel, he led the Insulating Concrete Form (ICF) manufacturer and the industry, into a new era of green building.
In an industry where concrete innovation has been weighted down by steel and implementation measured by decades, it's refreshing to discover that enterprising leadership still has a chance to succeed.
There's a bond that's stronger than mortar linking block producers to the design community. This bond of confidence is an important link needed to develop and expand the concrete block market.
It didn't seem a big thing at the time to Steve Parker. So in 1998, when Doug Deno, the retiring chairman of ASTM C09.40, asked Parker if he would be interested in becoming chairman of the subcommittee, Parker said, yes.
Sometimes you hit on something and you just don't know how big it is or how big it's going to get. Just look at Frank Kozeliski's fateful experiment. The former owner and president of Gallup Sand & Gravel in Gallup, N.M., concocted a simple, rudimentary concrete mix that didn't even require an...
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Q. In the past few years, we have noticed that mix design specifications have become more complex. Many documents contain terms such as admixtures, additives, and agents. What is the difference in these terms?
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Q. We are bidding on a large school project that is planned to be a LEED-certified structure. The architect has asked if we can supply a concrete masonry unit (CMU) that could be cast with supplementary materials to help qualify for LEED points. Are there any guidelines?
Q. We are involved in a quality claim in which the testing lab reports the hardened concrete did not achieve the specified design strength. Our testing lab broke cylinders from that same job and all achieved proper strength. We are confident that we will achieve proper strength if the coring is...
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One of world's most advanced sustainable construction studies is reviewing an interesting application of concrete construction.
This summer, Lafarge employees around the world observed Safety Month. Each plant organized events, open houses, and educational sessions to raise safety awareness among employees, subcontractors, and local communities. At Lafarge's Greater Winnipeg Area (GWA) operations, which include ready-mix...
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Route 90 is one of the South's most traveled scenic highways. But more importantly, it's a major Gulf Coast artery, carrying travelers from the Florida Panhandle to New Orleans and beyond. So when Hurricane Katrina destroyed the existing four-lane bridge between Biloxi and Ocean Springs in 2005...
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Q. We are in the early planning stage of a major commercial project. During site preparation, the general contractor will require us to demolish and crush a large quantity of existing concrete used in the structure and pavement. In fact, looking through our records, it appears we supplied the...
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Q. We have just equipped several of our mixers with an on-board slump monitoring system. As the truck travels to or waits at the jobsite, the system monitors the mix's slump. When the system's controller senses a significant stiffening of the mix, it will maintain the load's targeted slump by...
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The RMC Research & Education Foundation has released the revised version of its “Pervious Concrete Research Compilation.”
