Factors Affecting the Homogeneity of Ready-Mixed Concrete


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Title: Factors Affecting the Homogeneity of Ready-Mixed Concrete

Author(s): Delmar L. Bloem, Richard D. Gaynor,

Publication: Journal Proceedings

Volume: 68

Issue: 7

Appears on pages(s): 521-525

Keywords: Batching, capacity, field tests, homogeneity, mixers, mixing, physical properties, ready mixed concrete, research, transit mixers, variability

Date: 7/1/1971

Comprehensive investigation of the many factors affecting within-batch homogeneity of transit mixed concrete. Paper reports first phase of 3-year study, quantitative data from over 200 batches. Ribbon-loading resulted in less within-batch variability than 2-stop batching, but satis-factory results found obtainable from either under con-trolled conditions. Study considered factors such as mixer capacity, drum speed, loading methods.