Document Archives

Durability of Steel Embedded in Structural Lightweight Concrete

• ID:

  936

• ESCSI:

  4350.005

• Author:

  Bandyopadhyay, A.K. and R.N. Swamy

• Publication Name:

  Materials and Structures

• Type of Publication:

  Paper

• Publisher:

  RILEM

• Dated:

  1975

• Issue/Volume:

  May-June No. 45 Vol. 8

• Other ID:

• Page(s):

  8 pages

• Reference List:

  Y

• Abstract:

  Interim results of a long-term investigation on the durability of steel reinforcement embedded in expanded slate structural lightweight concrete are reported. The influence of concrete cover, cement content and of partial replacement of lightweight lines with natural sand was studied. Surface crazing was found to increase with cement content and increasing fine particles. The carbonation depth, and the relative permeability measured by alcohol absorption, were found to decrease with increasing cement content. Inclusion of natural sand in the mix reduced the permeability and the penetration of the carbonation front into the concrete. No instance of damage due to corrosion was found in embedded steel reinforcement after two year’s exposure to industrial atmosphere.