ACI 309.3R : 92(R1997)

This guide is primarily directed towards architects engineers and constructors. It describes various situations where design requirements results in highly congested forms, which impede the consolidation of concrete. Techniques to overcome these difficulties are presented. The guide also identifies two constructors various placing and consolidation conditions with proposed solutions as special procedures and mixture proportions. The guide also alerts constructors to closely review design drawings where congested areas are expected to ensure appropriate allowances have been included in their bids.