Evaluation of porosity in self-compacting concrete (SCC) produced with fly ash (FA) and limestone filler (LF)

Author(s): P. Raposeiro da Silva, J. de Brito
Paper category: Conference
Book title: Rheology and processing of Construction Materials – 7th RILEM International Conference on Self-Compacting Concrete and 1st RILEM International Conference on Rheology and Processing of Construction Materials
Editor(s): Nicolas Roussel and Hela Bessaies-Bey
Print ISBN: 978-2-35158-137-7
e-ISBN: 978-2-35158-138-4
Publisher: RILEM Publications SARL
Pages: 293-300
Total Pages: 8
Language: English

Abstract: 
SCC is increasingly used to improve specific construction aspects. In the near future, SCC can be expected to replace conventional concrete (CC) due to its many advantages.

Its main characteristics in the fresh state are achieved essentially due to changes in the content of the different components, namely the increase of the mortar’s volume (more ultrafine material such as cement and additions) and the decrease of the coarse aggregates.

Nevertheless, the use of overly large volumes of additions such as FA and/or LF can substantially affect the concrete’s pore structure and consequently its durability.

In this context, an experimental program was conducted to evaluate the effect, on the concrete’s porosity, of incorporating FA and LF in binary and ternary mixes of selfcompacting concrete.

With the results obtained, conclusions were established regarding the SCC durability considering its permeability and the microstructure of its pore structure.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00