Quality of Concrete for Durable Structures


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Title: Quality of Concrete for Durable Structures

Author(s): D. W. S. Ho and H. T. Cao

Publication: Special Publication

Volume: 128


Appears on pages(s): 677-688

Keywords: carbonation; concrete durability; curing; mix proportioning; performance (tests); permeability; porosity; quality control; Materials Research

Date: 11/1/1991

The influence of mix constituents on the quality of concrete is discussed. Results demonstrate that the assessment of concrete performance based on the traditional parameters such as water-cement ratio and 28-day strength may be misleading. One way to insure a durable structure is to specify concrete by performance criteria. This would overcome not only the influence of constituents, but would also place emphasis on proper curing. For the protection of reinforcement against corrosion, performance criteria based on carbonation and water sorptivity are suggested.