THE COMPOSITION AND POZZOLANIC PROPERTIES OF PULVERIZED FUEL ASHES. III. POZZOLANIC PROPERTIES OF FLY ASHES AS DETERMINED BY CHEMICAL METHODS

THE POZZOLANIC ACTIVITIES OF THE FLY ASHES AND OTHER MATERIALS HAVE BEEN DETERMINED BY TWO CHEMICAL METHODS BASED ON ESTIMATING THE AMOUNT OF ACID-SOLUBLE MATERIAL THAT IS PRODUCED WHEN A POZZOLAN REACTS WITH LIME. THE CONCLUSIONS REACHED FROM THESE RESULTS, ON THE RELATIVE IMPORTANCE OF THE FACTORS THAT DETERMINE THE ACTIVITY OF AN ASH, AGREE WITH THOSE PREVIOUSLY BASED ON THE CRUSHING STRENGTHS OF FLY ASH MORTAR, AS ALREADY PRESENTED. THERE WAS A CLOSE RELATION BETWEEN THE AMOUNT OF CHEMICAL REACTION TAKING PLACE IN A MORTAR AND THE STRENGTH IT DEVELOPED, BUT SHORT-TERM CHEMICAL ASSESSMENTS SHOWED NO RELATION TO LONG-TERM CRUSHING STRENGTHS. IT WAS CONCLUDED THAT CHEMICAL METHODS WERE UNLIKELY TO HAVE ANY PRACTICAL VALUE FOR PREDICTING THE LONG-TERM STRENGTH OF A MORTAR IN THE FIELD. REFERENCES' COMPOSITION OF FLY ASHES FROM SOME BRITISH POWER STATIONS AND PROPERTIES OF THEIR COMPONENT PARTICLES, J. APPL. CHEM., LOND., 15, 12, 585-94, 1965. POZZOLANIC PROPERTIES OF FLY ASHES AS DETERMINED BY CRUSHING STRENGTH TESTS ON LIME MORTARS, J. APPL. CHEM., LOND., 15, 12, 595-604, 1965.

• Supplemental Notes:
  • Vol 16, No 2, PP 33-39, 6 FIG, 5 TAB, 8 REF
• Authors:
  • Watt, J D
  • Thorne, D J
• Publication Date: 1966-2

Media Info

• Serial:
  • Journal Applied Chemistry /UK/

Subject/Index Terms

• TRT Terms: Calcium oxide; Chemical analysis; Chemical reactions; Chemical reactivity; Comminution; Fly ash; Materials selection; Mortar; pH value; Pozzolan; Strength of materials
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00216043
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Jul 14 1994 12:00AM