DURABILITY OF POROUS CONCRETE

Results of an investigation conducted to develop additional data on the chemical and mechanical properties of porous concrete are presented. When immersed in seawater for 1 year, the compressive strength of porous concrete decreased by about 15-20% as compared with standard curing, due to the leaching of free lime. Abrasion resistance of porous concrete in water showed a slightly lower value compared to that of normal concrete. The dynamic modulus of elasticity shows a steep rise during early periods up to 7 days. This tendency became more noticeable when the binder-voids ratio was decreased. The resistance of porous concrete to freezing and thawing is considered to be low, because porous concrete has continuous voids into which water can permeate during freeze/thaw cycles. Increasing the binder per unit volume of porous concrete increases its durability.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0870311131
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Tamai, M
  • Yoshida, M
• Conference:
  • Sixth CANMET/ACI International Conference on Durability of Concrete
  • Location: Thessaloniki, Greece
  • Date: 2003-6-1 to 2003-6-7
• Publication Date: 2003

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 755-769

Subject/Index Terms

• TRT Terms: Compressive strength; Concrete structures; Durability; Freeze thaw durability; Leaching; Porous pavements; Structural deterioration and defects; Structural materials
• Uncontrolled Terms: Concrete properties; Marine environment
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete;

Filing Info

• Accession Number: 00964553
• Record Type: Publication
• ISBN: 0870311131
• Report/Paper Numbers: SP-212-47
• Files: TRIS
• Created Date: Oct 16 2003 12:00AM