SILICEOUS AGGREGATES IN CONCRETE

AGREGATELE SILICIOSE IN BETOANE

Some aspects of siliceous aggregate properties and their influence on concrete are studied as follows: (1) the fines of siliceous aggregates are chemically active in the presence of cement, (2) the activity of the fines depends on the nature of the cement and increases with the proportion of calcium oxide in cement, (3) aggregates containing a large proportion of fines cause a marked expansion of the concrete which cannot be reduced by compaction. This results in a decrease in density, mechanical strength, and resistance to corrosion and frost, and (4) aggregate fines have a stronger influence than cement type.

• Authors:
  • Steopoe, A
• Publication Date: 1967-3

Language

• Undetermined

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 142-145
• Serial:
  • Revista Constructiilor si Materialelor de Constr
  • Issue Number: 3

Subject/Index Terms

• TRT Terms: Calcium oxide; Cement; Clay soils; Compaction; Concrete aggregates; Corrosion resistance; Density; Expansion; Fine materials; Silica stone
• Old TRIS Terms: Siliceous clays
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00081315
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Mar 26 1975 12:00AM