| Download | - View accepted manuscript: Measuring early-age coefficient of thermal expansion in high-performance concrete (PDF, 363 KiB)
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| Author | Search for: Cusson, D.1; Search for: Hoogeveen, T. J.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Conference | International RILEM Conference on Volume Changes of Hardening Concrete: Testing and Mitigation: 20 August 2006, Lyngby, Denmark |
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| Subject | early age, thermal expansion, high-performance concrete, test method; High performance / High strength concrete |
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| Abstract | This paper presents an experimental approach to determine the coefficient of thermal expansion of concrete at early age, in which a group of three sealed concrete prisms (75x75x295 mm3) are subjected to 25-30°C temperature cycles in an environmental chamber from set time to an age of at least seven days. The concrete deformation is measured with high-precision displacement sensors and the temperature is measured by thermocouples embedded in the concrete prisms. The coefficient of thermal expansion is determined as a function of time by direct calculation on the measured data.For the high-performance concrete used in this study, it was found that the coefficient of thermal expansion decreased towards a minimum value of 6x10-6/°C one day after the setting of concrete, and then increased linearly until a more stable value of 8x10-6/°C was reached at the age of 4 days. |
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| Publication date | 2006-08-20 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 45428
NRC-IRC-18117 |
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| NPARC number | 20377924 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 526a1044-7058-4a1b-9f29-aad032508a6b |
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| Record created | 2012-07-24 |
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| Record modified | 2020-04-22 |
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