UM
Behaviour of high- and normal-strength concrete at early ages
Jin X.2; Shen Y.2; Li Z.1
2005-08-01
Source PublicationMagazine of Concrete Research
ISSN00249831
Volume57Issue:6Pages:339-345
AbstractThis paper presents the results of experimental investigations on the behaviour of both high (HSC) and normal strength (NSC) concrete at early ages. The mechanical experiments included compression test, splitting tension, and fracture test. The tests were conducted at ages of 12 h, 1, 2, 3, 7 and 28 days. In addition to various strengths, the complete stress - strain curves of concretes under uniaxial compression at different ages were obtained by utilising the circumferential control method. It was found that the strength development rate of HSC was sharper than that of NSC at early ages. To investigate the microstructure development of concrete at early ages, mercury intrusion porosimetry (MIP) was used to examine the pore size and accumulated pore volume for both HSC and NSC at ages of 12 h, 1, 3 and 28 days. The results showed that the porosity decreased with the progress of hydration. Accordingly, the strengths of both HSC and NSC increased as the result of progress of microstructure development. © 2005 Thomas Telford Ltd.
DOI10.1680/macr.2005.57.6.339
URLView the original
Language英語
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Cited Times [WOS]:6   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Hong Kong University of Science and Technology
2.Zhejiang University
Recommended Citation
GB/T 7714
Jin X.,Shen Y.,Li Z.. Behaviour of high- and normal-strength concrete at early ages[J]. Magazine of Concrete Research,2005,57(6):339-345.
APA Jin X.,Shen Y.,&Li Z..(2005).Behaviour of high- and normal-strength concrete at early ages.Magazine of Concrete Research,57(6),339-345.
MLA Jin X.,et al."Behaviour of high- and normal-strength concrete at early ages".Magazine of Concrete Research 57.6(2005):339-345.
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