Amendment (Revision) of JIS A 5308 (Ready-mixed concrete): 2011
By Y. Tsuji and S. Shirokuni
Concrete Journal, Vol.50, No.2, Feb. 2012
- Synopsis
- After having been studied and researched to JIS A 5308 (Ready-mixed concrete) published at March 2009, JIS A 5308 was partially revised further by the amendment (revision). The draft of the amendment (revision) of the activities for fiscal 2010. The amendment covers four issues that urgently needed revision : Clarification of the definitionof transportation time ; introduction of environmental labels, promotion of the use of sludge water for waste reduction (usage with a solid content of sludge less than 1% measured by the sludge water usage method with low-content ratio) ; and addition of normative references.
- Keywords:
- JIS A 5308, ready-mixed concrete, transportation time, environmental label, sludge water,sludge water usage method with low-content ratio
