An immense concrete bridge beam took up both lanes of Route 61 south in Schuylkill Haven on Thursday morning on its way to Bucks County. Manufactured at Northeast Prestressed Products in Cressona, the ...
Ultra-high-performance concrete (UHPC) is rapidly emerging as a premier material for precast concrete construction. First introduced as “reactive powder concrete” in the early 1990s, this material has ...
The American Concrete Institute (ACI) published ACI 318-19: “ Building Code Requirements for Structural Concrete ” in July 2019, in response to new engineering practices and industry changes. ACI 318 ...
According to the American Concrete Institute CT-18, fiber-reinforced concrete is a concrete mixture that is reinforced with dispersed, randomly orientated fibers. These fibers can be used in lieu of ...
During concrete works, one detail that often goes unnoticed by non-engineers is the rebar chair. These small supports hold reinforcement bars at the correct height before and during concrete ...
Gustavo J. Parra-Montesinos is coming to the rescue of concrete-frame designers and contractors in earthquake country, long bedeviled by rebar-congested coupling beams that span openings in seismic ...
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