1. Should standard cube test specimens be replaced by test specimens taken from structures?
2. Contract Strength Requirements-Cores Versus In Situ Evaluation
3. Murphy, W.E. (1977) Discussion of Reference 8.99. Journal of the American Concrete Institute, 74, 523-525.
4. ACI Committee 301 (1971) Specifications for Structural Concrete for Buildings (ACI 301-72). Journal of the American Concrete Institute, 68, 413-450. (72, No. 7, 361-362, Revised 1975).
5. Bellander, U. (1978) Strength in Concrete Structure, CBI Reports 1:78. Swedish Cement and Concrete Research Institute, 15.