Autogenous shrinkage of self-compacting ultra-high performance concrete(UHPC)

Title: Autogenous shrinkage of self-compacting ultra-high performance concrete(UHPC)
Author(s): J. Ma, F. Dehn, G. Koenig
Paper category : conference
Book title: International Conference on Advances in Concrete and Structures
Editor(s): Ying-shu Yuan, Surendra P. Shah and Heng-lin Lü
Print-ISBN: 2-912143-41-1
e-ISBN: 2351580176
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 255 - 262
Total Pages: 8
Nb references: 9
Language: English

Abstract: 
In this paper the autogenous shrinkage and internal relative humidity of Ultra-High Performance Concrete (UHPC) was studied. Experiments were carried out on self-compacting UHPC containing different silica fume contents and water-cement-ratios (w/c). Results showed, that in UHPC with a low w/c or high silica fume content a higher autogenous shrinkage than UHPC with a high w/c or low silica fume content could be observed. But the difference was not significant. All UHPC exhibited a much higher autogenous shrinkage than conventional HPC, which could be resulted from the higher paste volume in UHPC and the volume contracting effect of pozzolanic reaction. The internal relative humidity in UHPC was similar as that in HPC, so no more intensive self-desiccation took place in UHPC.

Online publication: 2003-08-10
Publication type : full_text
Public price (Euros): 0.00