Autogenous shrinkage of concrete with design strength 60–120 N/mm2

Title
Autogenous shrinkage of concrete with design strength 60–120 N/mm2
Author
류두열
Keywords
BLAST-FURNACE SLAG; HIGH-PERFORMANCE CONCRETE; SILICA FUME; SELF-DESICCATION; FLY-ASH; DEFORMATION
Issue Date
2011-10
Publisher
THOMAS TELFORD SERVICES LTD
Citation
Magazine of concrete research, Vol.63 No.10 [2011], 751-762
Abstract
It is well known that autogenous shrinkage of high strength concrete (HSC) with a low water-to-binder ratio (W/B) is a major contributor to premature shrinkage cracking, which reduces the durability, strength and aesthetics of concrete structures. For concrete containing silica fume and having a low W/B, it is essential to accurately predict the autogenous shrinkage behaviour. In order to investigate the autogenous shrinkage behaviour of HSC, very high strength concrete (VHSC) and ultra high strength concrete (UHSC), five different W/B (0.3, 0.25, 0.2, 0.16 and 0.12) were studied in this work. To estimate the influence of admixtures on UHSC with W/B less than 0.2, fly ash (FA) and granulated blast-furnace slag (BFS) were added (0, 10, 20% and 0, 15, 30% by weight of total binder respectively). The experimental results and published data relevant to autogenous shrinkage were predicted using five different models for various grades of concrete. The test results showed that the largest amount of autogenous shrinkage was observed at W/B = 0.16, and additions of both of FA and BFS reduced autogenous shrinkage. The Eurocode 2 model and the Jonasson and Hedlund model substantially underestimated autogenous shrinkage of UHSC below W/B = 0.2, whereas the JSCE model and Dilger and Wang model overestimated the results for HSC and VHSC.
URI
https://www.icevirtuallibrary.com/doi/10.1680/macr.2011.63.10.751
ISSN
0024-9831; 1751-763X
DOI
10.1680/macr.2011.63.10.751
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE