CORRELATION OF LABORATORY TESTS WITH FIELD EXPERIENCES OF EXCESSIVE CONCRETE EXPANSION INDUCED BY A REACTION BETWEEN THE CEMENT AND AGGREGATE

THE HISTORY OF THE IDENTIFICATION OF ALKALI-AGGREGATE REACTION IN CALIFORNIA FROM THE TIME DISTRESS WAS NOTED IN A PAVEMENT NORTH OF BRADLEY IN THE SALINAS VALLEY IN 1938 AND THE EARLIER FAILURE OF THE KING CITY BRIDGE, BUILT IN 1919- 1920, IN JULY 1924 TO THE DEVELOPMENT OF THE SEALED CONTAINER TEST IN WHICH EXPANSION IS OBSERVED IN A MORTAR BAR STANDING OVER WATER WHILE THE TEMPERATURE IS MAINTAINED AT 100 DEGREES F. THE RESULTS SHOW THAT THE OPALINE SILICA CONTAINED IN THE SALINAS RIVER SAND REACTS WITH CEMENTS CONTAINING MORE THAN 0.6 PERCENT EQUIVALENT SODIUM OXIDE TO FORM A SODIUM SILICATE GEL WHICH CAUSES THE EXCESSIVE EXPANSION. THE LABORATORY TEST CHECKED CONSISTENTLY WITH EXPERIENCE WITH STRUCTURES.

• Supplemental Notes:
  • Vol 48, pp 1057-1066
• Authors:
  • STANTON, T E
• Publication Date: 1948

Media Info

• Serial:
  • American Soc Testing & Materials Proc

Subject/Index Terms

• TRT Terms: Aggregates; Alkali aggregate reactions; Cement; Concrete; Correlation analysis; Expansion; Laboratory tests; Mortar; Performance; Silica gel; Silica sands; Sodium silicate; Temperature; Water
• Uncontrolled Terms: Field performance
• Subject Areas: Data and Information Technology; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00212663
• Record Type: Publication
• Source Agency: Highway Research Board Bibliography
• Files: TRIS
• Created Date: Jun 18 1994 12:00AM