The precast concrete industry has, since its inception, been a recognized leader in the development and use of high strength concrete. Yet in recent years, whereas concrete strength in building applications has increased from 6000 - 8000 psi to 12,000- 16,000 psi (41- 55 MPa to 83- 110 MPa), there has not been a corresponding trend in the strength of precast concrete. As part of its continuing mission, the PC/ Committee on High Strength Concrete conducted a survey of producer members in 1990 to determine the use, benefits and liabilities of high strength concrete in the industry.
