Loading...
Grout rheological properties for preplaced aggregate concrete production
Ganaw, Abdelhamed I. Hughes, David C.
Ganaw, Abdelhamed I.
Hughes, David C.
Publication Date
2014-12
End of Embargo
Supervisor
Rights
© 2014 ICE. Full-text reproduced in accordance with the publisher's self-archiving policy.
Peer-Reviewed
Yes
Open Access status
openAccess
Accepted for publication
Institution
Department
Awarded
Embargo end date
Additional title
Abstract
This paper investigates the effect of cement based grout rheology on the injection process through coarse aggregate for producing preplaced aggregate concrete. Four different sands were used in the grout production at different water-cement ratios and cement-sand ratios. Superplasticiers and pulverised fuel ash were also employed in the grout production. Coarse aggregate of known weight was compacted into 150 mm cubic forms, and then the grout was injected through a plastic pipe under self weight into the stone ‘skeleton’. It has been found that there are threshold values of the rheological parameters beyond which full injection is not possible. In particular, all grout mixes with and without additives and admixtures exhibited the same yield stress threshold value for full injection, whereas the threshold values for other rheological properties including the grout plastic viscosity, flow time and speed were different according to the materials added to the mix.
Version
Accepted manuscript
Citation
Ganaw AI, Hughes DC and Ashour AF (2014) Grout rheology threshold for preplaced aggregate concrete production. Proceedings of the Institution of Civil Engineers - Construction Materials. 167(6): 292-301.
Link to publisher’s version
Link to published version
Link to Version of Record
Type
Article