Please use this identifier to cite or link to this item:
|Title:||Workability of air-entrained lightweight concrete from rheology perspective|
|Authors:||Chia, K.-S. |
|Citation:||Chia, K.-S., Zhang, M.-H. (2007-06). Workability of air-entrained lightweight concrete from rheology perspective. Magazine of Concrete Research 59 (5) : 367-375. ScholarBank@NUS Repository. https://doi.org/10.1680/macr.2007.59.5.367|
|Abstract:||Effects of air entrainment on rheological parameters and slump of fresh lightweight aggregate concrete were studied. Results show that yield stress and plastic viscosity of air-entrained concrete were lower than those of non-air-entrained concrete with similar superplasticiser dosage. As the entrained-air content increased, the plastic viscosity decreased whereas the yield stress remained relatively unchanged. The slump of the air-entrained concrete was significantly higher than the non-air-entrained concrete. At similar yield stress, the slump of the air-entrained concrete was higher owing to its lower plastic viscosity by air entrainment. At similar slump, the air-entrained concrete had higher yield stress and lower plastic viscosity, implying that higher shear stress is needed to initiate flow but flow resistance would be lower.|
|Source Title:||Magazine of Concrete Research|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Oct 18, 2018
WEB OF SCIENCETM
checked on Oct 2, 2018
checked on Oct 20, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.