1. Properties of Concrete;Neville,1981
2. Are They Pour Lines or Cold Joints;Colz,1997
3. Evaluation of initial setting time of fresh concrete;Piyasena,2013
4. The impact of the time when casting the second layer of concrete on its mechanical properties;Mohamadien;J. Eng. Sci.,2013
5. ACI Committee 309, Guide for Consolidation of Concrete, American Concrete Institute, Farmington Hills, Mich., 1987, p. 309R-21.