87.Optical and electron microscopy on the microstructure of traditional and self-compacting concrete

Title: 87.Optical and electron microscopy on the microstructure of traditional and self-compacting concrete
Author(s): V. Boel, G. De Schutter
Paper category : conference
Book title: 5th International RILEM Symposium on Self-Compacting Concrete
Editor(s): G. De Schutter and V. Boel
Print-ISBN: 978-2-35158-047-9
e-ISBN: 978-2-35158-088-2
Publisher: RILEM Publications SARL
Publication year: 2007
Pages: 577 - 582
Total Pages: 6
Nb references: 4
Language: English

Abstract: Self-compacting concrete (SCC) can be placed without any compaction. Because of this, some health risks as well as environmental problems could be avoided. The two essential properties of SCC are a high flowability and a high segregation resistance obtained by a large amount of fine particles and the use of superplasticizers. Self-compacting concrete and traditional concrete (TC) are based on different mix designs. As such, a different pore and microstructure of the cement matrix might occur causing a different durability. By means of optical microscopy and electron microscopy the microstructure of SCC and TC has been investigated and compared. The influence of a higher water or cement content has been investigated as well. The results are obtained from several mixtures of SCC and TC. The overall conclusion is that SCC has a more dense microstructure than TC and also the interfacial transition zone seems to be more dense.

Online publication: 2009-06-16
Publication type : full_text
Public price (Euros): 0.00