Correlation of Rheological Properties to Durability and Strength of Hardened Concrete
Publication: Journal of Materials in Civil Engineering
Volume 15, Issue 4
Abstract
Premature deterioration of concrete structures has created awareness and concern about the durability of concrete. Concrete mixtures used in the construction of residential basement walls and foundations have a high water to cement (w/c) ratio and low cement content The result is friable concrete with a highly porous surface layer and high potential for cracking. The defects have a direct impact on the durability of concrete. This experimental study examines the effects of three parameters—mix design, formwork, and consolidation—on the quality of the surface of high w/c concrete. The fresh concrete is characterized using its rheological properties—in particular, its yield stress and plastic viscosity. Pulse velocity, pull-off strength, and compressive strength were measured to evaluate the quality and the mechanical properties of the hardened concrete. The durability of the hardened concrete was evaluated by measuring its surface transport properties—namely, its air permeability and sorptivity. The results show that it is possible to correlate the rheological properties of fresh concrete to the mechanical and permeation properties of the hardened concrete.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 15 • Issue 4 • August 2003
Pages: 391 - 399
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Aug 22, 2001
Accepted: May 22, 2002
Published online: Jul 15, 2003
Published in print: Aug 2003
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