Title:
Monitoring Temperatures in Concrete Construction Using IR Thermometers
Author(s):
Luke M. Snell
Publication:
Concrete International
Volume:
37
Issue:
1
Appears on pages(s):
59-63
Keywords:
infrared, emissivity, accuracy, surface
DOI:
10.14359/51687464
Date:
1/1/2015
Abstract:
Handheld infrared (IR) thermometers have been found to work well in the relatively narrow temperature range commonly seen in concrete construction: 0 to 120°F (-20 to -45°C). Although IR thermometers are not sufficiently accurate for some quality assurance tests, they do make it possible to estimate concrete temperatures and evaluate casting surface temperatures without interfering with the concrete placements. The article provides user guidance and lists possible applications for IR thermometers in concrete construction.
Related References:
1. National Physical Laboratory, www.npl.co.uk/reference/faqs/whatis-emissivity-and-why-is-it-important-(faq-thermal). (last accessed Nov. 19, 2014)
2. The Concrete Center, www.concretecentre.com/technical_information/performance_and_benefits/thermal_mass/surface_emissivity.aspx. (last accessed Nov. 19, 2014)
3. www.transcat.com/technical-reference/newsletters/IR_Therm_Theory.html. (last accessed Nov. 19, 2014)
4. http://en.wikipedia.org/wiki/Infrared_thermometer. (last accessed Nov. 19, 2014)
5. http://support.fluke.com/raytek-sales/Download/Asset/IR_THEORY_55514_ENG_REVB_LR.PDF. (last accessed Nov. 19, 2014)
6. www.scigiene.com/technical-solutions/tech-thermometer-solutions.htm. (last accessed Nov. 19, 2014)
7. http://site.ul.com/global/documents/offerings/industries/waterandfood/infraredthermometers/ITUserGuide.pdf. (last accessed Nov. 19, 2014)
8. “Thermometer Comparator,” http://thermometer.co.uk/infraredthermometers/605-infrared-thermometer-comparator.html. (last accessed Nov. 19, 2014)
9. “How to Calibrate an Infrared Thermometer,” http://www.tempcon.co.uk/Calibrating-an-infrared-thermometer#.VGywj410zIU. (last accessed Nov. 19, 2014)
10. Snell, L.M, and Cheek, M.A., “Estimating Fresh Concrete Temperatures,” Concrete International, V. 28 No. 6, June 2006, pp. 49-51.
11. Snell, L., and Cheek, M., “Using Infrared Thermometers in Concrete Construction,” Concrete Plant International, Feb. 2007, pp 40-42.
12. ACI Committee 306, “Guide to Cold Weather Concreting (ACI 306R-10),” American Concrete Institute, Farmington Hills, MI, 2010, 26 pp.
13. Snell, L.M., “Batching Concrete in Cold Weather,” Proceedings, 11th Annual Mongolian Concrete Conference, 2012, www.wt-us.com/pdf/snell_BatchingConcrete.pdf. (last accessed Nov. 19, 2014)
14. ACI Committee 305, “Guide to Hot Weather Concreting (ACI 305R-10),” American Concrete Institute, Farmington Hills, MI, 2010, 23 pp.
15. ACI Committee 302, “Guide for Concrete Floor and Slab Construction (ACI 302.1R-04),” American Concrete Institute, Farmington Hills, MI, 2004, 76 pp.
16. ACI Committee 301, “Specifications for Structural Concrete (ACI 301-10),” American Concrete Institute, Farmington Hills, MI, 2010, 77 pp.
17. ACI-CRSI Certification, “Adhesive Anchor Installer,” CP-80(12), American Concrete Institute, Farmington Hills, MI, 2012, 96 pp.