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Feasibility study of no-slump concrete for mass concrete construction

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http://hdl.handle.net/11681/11530Collections
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Show full item recordAuthor
Tynes, W. O. (William O.)
Description
Miscellaneous paper Abstract: Three no-slump concrete mixtures containing crushed limestone aggregate, two with 4-1/2-in. maximum-size aggregate and one with 3-in. maximum-size aggregate, were proportioned with 255 lb of Type I portland cement with various water-cement ratios. Tests on the no-slump concrete were performed at the U. S. Army Engineer Waterways Experiment Station in December 1972. The no-slump concrete was produced and placed over a 3-day test period, 4-6 December 1972. Two test sections of various lift heights were constructed on top of a 15-ft-wide concrete slab. Both 4-1/2- and 3-in. maximum-size aggregate concrete was placed, leveled, and compacted in successive lifts all in the same day or in successive lifts separated by 1-1/2 to 2 days. The concrete was batched in a semiautomatic plant and mixed in a 2-cu-yd Koehring tilting drum mixer. Mixed concrete was hauled to the placement in 5-cu-yd trucks, leveled by a bulldozer, and rolled and vibrated with an ll-ton self-propelled vibratory roller. Observations of the 3-day operation demonstrated the feasibility of mixing, hauling, spreading and leveling, and compacting no-slump concrete for a massive section. Results of tests on drilled core specimens indicated that the unit weight and strength properties of theconcrete were satisfactory using the roller compaction technique.
Date Issued
1973-10Publisher
Concrete Laboratory (U.S.) Engineer Research and Development Center (U.S.)
Subject
Concrete mixtures; Concrete tests; Mass concrete; No-slump concrete
Series/Reports no.
Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; C-73-10.
Rights
Approved for public release; distribution is unlimited.
Type
DOCUMENT
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