IN SITU MEASUREMENT OF THE EFFECT OF PARTIAL PORTLAND CEMENT REPLACEMENT USING EITHER FLY ASH OR GROUND GRANULATED PERFORMANCE OF MASS CONCRETE

The paper presents the results of an investigation to monitor the effect of partially replacing portland cement with either ground granulated blast-furnace slag or fly ash on the performance of massive concrete pours. Temperature and strain were monitored in three pours each 4.5 M deep which form part of the foundations for a grinding mill at the Frodingham Cement Works in Scunthorpe. The total cementitious material content in each pour was 400 kg/cu m. In one case 75% of the opc was replaced by granulated slag and in another, 30% was replaced by fly ash. Strengths were measured under British standard and temperature matched curing conditions to observe the effect of the in situ heat cycle. To enable a theoretical assessment of thermal stresses at early age to be made, laboratory tests on similar concrete were carried out to determine adiabatic temperature rise, thermal movement, elastic modulus and creep characteristics. Results of the laboratory and site investigations are assessed in relation to existing data. (TRRL)

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 777-800
  • Serial:
    • Volume: 69

Subject/Index Terms

Filing Info

  • Accession Number: 00325199
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: Part 2
  • Files: ITRD, TRIS
  • Created Date: Apr 15 1981 12:00AM