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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Rheological Behavior of Hardened Cement Paste Under Hardened Cement Under Low Stresses
Author(s): J. Glucklich
Publication: Journal Proceedings
Appears on pages(s): 327-338
Abstract:A set of simple static experiments with hardened cement paste is described to yield the defcrmational response of the material to low stresses. Using a mechanical analogy, this behavior can be described by the following elements connected in series: (a) a linear spring; (b) elements trans- mitting force by friction; (c) a body composed of a linear spring in parallel with a dash pot (a so-called Kelvin body); and (d) as in (c), except that the piston in the dash pot is made to move in one direction only by means of a nonreturn valve. Alternatively, instead of (c) and (d), a body composed of a dash pot in parallel with a spring which includes slippage elements as in (b). Creep behavior of the material is the superposition of two deformations: nonreversible creep with a relatively short time of retardation, and a reversible creep with a time of retardation one order of magnitude longer. Quantitative results and the dependence of the various parameters on factors such as water-cement ratio and age are briefly mentioned.
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