INVESTIGATION OF HIGH-STRENGTH FROST-RESISTANT CONCRETE
This study was conducted to determine if reduction in air content by vibration of a well proportioned concrete mixture of relatively high cement content reduces the frost resistance of the hardened concrete and also to determine the effect of such reduction in air content on compressive strength. One 3/4-in. (19.0-mm) maximum-size crushed limestone aggregate concrete mixture was proportioned to have a compressive strength of approximately 5500 pst (37.92 MPa) at 28 days age. The mixture had an air content of 8 plus or minus %. Various vibration times were used to reduce the air content until the samples had an air content as low as could be practically obtained. Specimens were cast for determining compressive strength, resistance to freezing and thawing, and air void parameters to evaluate the effect of reduction in air content of the concrete on strength and frost resistance.
U.S. Army Waterways Experiment Station3909 Halls Ferry Road
Vicksburg, MS USA 39180-6199
- Tynes, W O
- Publication Date: 1975-6
- Pagination: 38 p.
- TRT Terms: Admixtures; Air content; Air entrainment; Air voids; Cement content; Compressive strength; Concrete; Freeze thaw durability; Freezing; Frost; Frost susceptibility; High strength concrete; Limestone aggregates; Mixtures; Reduction (Chemistry); Thaw; Vibration
- Uncontrolled Terms: Compressive properties
- Old TRIS Terms: Air voids content; Reduction
- Subject Areas: Highways; Materials;
- Accession Number: 00092611
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: AEWES-MP-C-75-6 Final Rpt.
- Files: TRIS
- Created Date: Nov 5 1975 12:00AM