19Jul00        Directories  1  2  3  Page 4 
  #a012-29
Examples of bad concrete, probably containing too much salt.

  
Viewed 2079 times, 0 Comments, 139 KB.
  #a012-30


  
Viewed 1924 times, 0 Comments, 156 KB.
  #a012-31
The salt causes the iron rebar to expand, blowing out chunks of concrete over the rebar.

  
Viewed 2210 times, 0 Comments, 162 KB.
  #a012-33


  
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