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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: A Discussion on the Autogenous Shrinkage Interpretation from the Experimental Shrinkage Measurement Based on the Australian Testing Procedure AS1012. 13
Author(s): William A Thomas, James Mohammadi, Warren South
Appears on pages(s): 875-883
Keywords: Drying Shrinkage of Concrete, Autogenous Shrinkage, Design Shrinkage Strain
Abstract:This paper discusses a suggested experimental procedure for performing an accurate assessment of the concrete shrinkage. The suggested experimental procedure is based on the Australian shrinkage assessment terms and concept, addressed in the current version of Australian
Standard AS3600. Following the introduction of the current version of Australian Standard AS3600, it has been noted that there are difficulties in relating test data from concrete drying shrinkage tests carried out in accordance with the Australian Standard AS1012.13 to the design shrinkage strain calculated in AS3600. This issue arises as a result of AS3600 approach for conducting shrinkage calculation by separating the forms of shrinkage into autogenous and drying shrinkage components. This paper discusses these types of shrinkage and their relationship to shrinkage measured according to AS1012.13. It goes on to propose possible procedure of using such test results to assist prediction of the design shrinkage strain by the methods proposed in AS3600. In addition, the proposed test method for measuring the autogenous shrinkage provides a consistent experimental method, which reveals the portion of autogenous shrinkage out of the total shrinkage. Besides, the proposed test method is used for assessing the effectiveness of mitigation methods applied specifically for the reduction of autogenous shrinkage.
Cement Concrete & Aggregates Australia, International Partner Access.
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