Mass Concretinng Principles Applied to Massive Structural Members

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Title: Mass Concretinng Principles Applied to Massive Structural Members

Author(s): J. Neil Mustard

Publication: Journal Proceedings

Volume: 62

Issue: 6

Appears on pages(s): 651-660

Keywords: aggregate, crackiing, mass concrete, maximum size aggregate, placing technique, proportioning, structural concrete, temperature control, thermal stress

Date: 6/1/1965

Abstract:
The use of pozzolan, a minimum of cement, large size aggregate and low slump has long been standard practice for mass concrete. This paper deals with various techniques by which these leaner, harsher mixes can be incorporated into large structural concrete members or units. The concrete with a low cement factor is placed in areas of low stress and is bonded monolithically with the higher strength concrete. This not only results in a saving of cement, but also reduces the temperature rise of thick sections and thereby decreases the tendency for them to develop cracks oncooling.