EFFECT OF MOISTURE CONTENT ON THE DIRECT TENSILE STRENGTH OF CONCRETE CYLINDERS AND PRISMS

The effects of desorption and water sorption on the tensile strength of concrete and hydrated cement paste cylinders and prisms are investigated. Two different techniques for the determination of the direct tensile strength i.e. Cylinders with embedded bars and prisms with glued end blocks are used. The results indicate that the concept of 'drying-strengthening' is not valid for the tensile strength of concrete where the 'drying-weakening' effects of desorption outweigh the strengthening effects due to the removal of moisture. The tensile strength of the concrete system on desorption and subsequent resorption is reported to be dependent on the shape of the specimens. (A) /TRR/

• Corporate Authors:

  University of New South Wales

  School of Civil Engineering, Anzac Parade
  Kensington, New South Wales  Australia  2033
• Authors:
  • Haque, M N
• Publication Date: 1976-12

Language

• English

Media Info

• Pagination: n.p.

Subject/Index Terms

• TRT Terms: Cement paste; Concrete; Cylinders (Geometry); Drying; Durability; Moisture content; Prisms; Samples; Strength of materials; Tensile strength; Tension; Testing; Waterproofing
• Uncontrolled Terms: Cylinders
• ITRD Terms: 4767: Cement paste; 4755: Concrete; 6458: Cylinder (math); 5184: Drying; 5920: Moisture content; 6459: Prism; 6251: Sample (mater); 5544: Strength (mater); 5502: Tension
• Subject Areas: Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00165714
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Uniciv Report No 163Monog Ser
• Files: ITRD, TRIS
• Created Date: May 18 1978 12:00AM