Paper Title:
Tested and Modeled Relationship between Curing Time and Cube Compressive Strength of Recycled Aggregate Concrete
  Abstract

Abstract. Recently, more and more concrete structures are demolished and rebuild, and a large amount of demolished concretes are reused as materials for recycled aggregate concrete (RAC). It is very important to correctly describe time-dependent compressive strength of RAC before the design of corresponding RAC structures. In this paper, compressive strength tests of RAC with different curing times are conducted, and a new three-parameter mathematical model for time-strength curve is presented according to exponent function. Approaches to determine parameters of the proposed model are presented based on characterized points of tested time-strength curve. Finally, good agreements have been found between tested data and new model fittings. The result of this paper is helpful to the numerical analysis and practical engineering design of RAC structures.

  Info
Periodical
Key Engineering Materials (Volumes 439-440)
Edited by
Yanwen Wu
Pages
563-566
DOI
10.4028/www.scientific.net/KEM.439-440.563
Citation
Z. W. Zhang, W. Wang, L. S. Ma, H. L. Wang, G. J. Pan, S. Zhang, "Tested and Modeled Relationship between Curing Time and Cube Compressive Strength of Recycled Aggregate Concrete", Key Engineering Materials, Vols. 439-440, pp. 563-566, 2010
Online since
June 2010
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