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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: Evaluation of Aggregate Properties on Tension Softening Behavior of High-Strength Concrete
Author(s): Y. Sitsutaka, K. Kamimura, and S. Nakamura
Publication: Special Publication
Appears on pages(s): 711-728
Keywords: aggregates; cracking (fracturing); fracture mechanics; high-strength concretes; mix proportioning; models; tension; Structural Research
Abstract:The influence of aggregate properties on the tension-softening behavior of high-strength concrete was studied. A new method to determine the tension-softening curve of concrete is proposed, based on the polylinear approximation analysis. The prediction method for the load-displacement relationships of concrete with cracks is developed by means of the fictitious crack model concept with the K-superposition method and constitutive law with the polylinear tension-softening curve. In this method, nonlinear crack equations were solved by the iteration program for evaluating softening inclinations. The polylinear approximation method for calculating the complete tension-softening curve from the actual load-displacement curve was established by using nonlinear crack equation analysis. Tension-softening curves of concrete with various aggregates and matrix strengths were measured, and their characteristics were discussed.
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