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Astm C9 Eyes Standard For Post-Tensioning Grout Bleed Stability

ASTM WK28156, Test Method for Bleed Stability of Cementitious Grout Under Static Pressure, is geared to rapid identification of grout properties that can lead to stressed steel strand corrosion; spalling of encasement concrete for post-tensioning ducts; and, misalignment of base plates with attendant bearing and equipment failure

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Urban Park Invites Unilock's Photocatalytic Cement-Bound, Permeable Pavers

Chicago Mayor Richard Daley led a mid-August dedication of a new city park with plaza paved in Unilock Eco-Priora stones. Located in the downtown-bordering West Loop community, Mary Bartelme Park is the latest project using the producer’s signature permeable pavers and Essroc TX Active cement

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Revised Pca Forecast: No Significant Industry Rebound Until 2013

Lagging federal and state investment in transportation construction will constrain recovery in cement consumption and concrete output from the severely depressed levels of 2009, when shipments dropped nearly 45 percent against 2005-06 peaks

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Teamsters Picket Aggregate Industries Northeast

Teamsters Local 25 announced picketing at an unspecified number of Aggregate Industries ready mixed plants across New England, citing contract negotiations in which the company seeks hours and benefit reductions, plus seniority system changes

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