Cold and moderate ambient temperatures effects on expansive pressure develop-ment in soundless chemical demolition agents
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|Title:||Cold and moderate ambient temperatures effects on expansive pressure develop-ment in soundless chemical demolition agents||Authors:||Natanzi, Atteyeh S.
Laefer, Debra F.
|Permanent link:||http://hdl.handle.net/10197/7567||Date:||1-May-2016||Online since:||2018-05-01T01:00:11Z||Abstract:||This paper explores cool and moderate temperature (2–19 °C) impacts on hydration heat and expansive pressure development in two commercial soundless chemical demolition agents (SCDAs). Experimental results showed (1) product-specific, linear relationships between the ambient temperature and time to peak hydration heat; (2) peak hydration heats to be consistently 1.5 times the ambient temperatures at 10–19 °C; outside of this range the factor was greater; (3) a linear relationship between peak hydration heat time and the onset of expansive pressure development; (4) a largely proportional relationship between ambient temperature and volumetric expansion of 1.1–1.4 times the original volume.||Funding Details:||European Research Council
Science Foundation Ireland
|Type of material:||Journal Article||Publisher:||Elsevier||Journal:||Construction and Building Materials||Volume:||110||Start page:||117||End page:||127||Copyright (published version):||2016 Elsevier||Keywords:||Soundless chemical demolition agent; Expansive cement; Ambient temperature; Expansive pressure; Dexpan; Bristar; Non-expansive demolition agent; Heat of hydration; Volumetric expansion||DOI:||10.1016/j.conbuildmat.2016.02.016||Language:||en||Status of Item:||Not peer reviewed|
|Appears in Collections:||Civil Engineering Research Collection|
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