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- Title
Determination of optimal microwave curing cycle for fly ash mortars.
- Authors
Topçu, İlker Bekir; Toprak, Mehmet Uğur; Akdag, Devrim
- Abstract
Microwave energy can accelerate the hydration of cement, which results in the rapid strength development of concrete. In this paper, prediction of later age compressive strength of fly ash cement mortars, based on the accelerated strength of mortars cured with microwave energy, was investigated. To accelerate curing properly, optimal processing parameters of microwave curing (MC) on Portland cement mortars (CM) and fly ash cement mortars (FA) were first determined and then were applied to mortars. The possible early ages for the strength prediction were found to be at 6 and 8 h for CM and FA, respectively. The error percentages for prediction of CM were ±2.22% and 2.91% for 7 and 28 d, respectively. Error percentages for FA, on the other hand, were ±4.36% and 5.20% for 7 and 28 d, respectively.
- Subjects
RADIATION curing; FLY ash; PORTLAND cement; HYDRATION; EFFECT of temperature on cement; MICROWAVE pressing; CEMENT plants; ERROR rates; INDUSTRIAL efficiency
- Publication
Canadian Journal of Civil Engineering, 2008, Vol 35, Issue 4, p349
- ISSN
0315-1468
- Publication type
Article
- DOI
10.1139/L07-132