Many states are using SCC in beams and girders, bridge piers and pile caps, columns, walls, and drilled shafts.SCC is also used in repair of concrete members with limited access for conventional placement and vibration techniques.Eliminating the need for concrete vibration reduces the noise level in the plants and at the construction sites, resulting in improved environmental and working conditions.
This, in turn, accelerates concrete placement and results in cost savings, less traffic disruption, and safer work zones.
SCC has the ability to flow into and completely fill intricate and complex formwork and to pass through and bond to congested reinforcement without segregation.
Under the IBRC and IBRD programs, over 20 SCC projects have been awarded and constructed.
The projects cover a wide range of applications, including beams and girders, bridge piers and pile caps, columns, abutment walls, retaining walls, drilled shafts, traffic barriers, bridge rails, bridge repairs, and prefabricated elements and systems.
For example, the Nevada DOT requested a workshop on SCC for an awarded project, which specified SCC for drilled shafts.
The Nevada DOT involved the state laboratory technicians, construction quality control and quality assurance personnel, and the contractor's crew in the workshop.
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The FHWA offers a one-day SCC workshop to the state departments of transportation (DOTs).
The workshop is generally held at the request of a state and at a state-furnished facility.
The states are encouraged to have projects ready to use the technology before requesting workshops.