DocumentCode :
3369223
Title :
Experimental study on early autogenous shrinkage of 20m-span low-height reactive powder concrete T-beam
Author :
Chan-yin, Zhang ; Wen-yu, Ji ; Ming-zhe, An
Author_Institution :
Sch. of Civil Eng. & Archit., Beijing Jiaotong Univ., Beijing, China
fYear :
2010
fDate :
26-28 June 2010
Firstpage :
1068
Lastpage :
1071
Abstract :
Steel string strain gauges are pre-embedded in ten pieces of 20m-span low-height reactive powder concrete(RPC) T-beam to test the changing law of early shrinkage along the height of T-beam´s section. According to this law, self-restraint stress which comes out of uneven shrinkage of RPC, and easy cracking dangerous areas which are caused by self-restraint stress, are both analyzed. Then S.Miyazawa & T.Kuroi & E.Tazawa autogenous shrinkage model is adopted to do regression analysis, obtaining certain parameters and the autogenous shrinkage strain-time curves of top slabs, webs and base plates.
Keywords :
beams (structures); concrete; gauges; powder technology; regression analysis; shrinkage; slabs; S.Miyazawa & T.Kuroi & E.Tazawa autogenous shrinkage model; autogenous shrinkage strain-time curves; base plates; early autogenous shrinkage; low-height reactive powder concrete T-beam; regression analysis; self-restraint stress; steel string strain gauges; top slabs; webs; Building materials; Capacitive sensors; Civil engineering; Concrete; Curing; Powders; Slabs; Steel; Stress; Testing; T-beam; early autogenous shrinkage; reactive powder concrete(RPC); regression analysis; shrinkage stress;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7737-1
Type :
conf
DOI :
10.1109/MACE.2010.5536792
Filename :
5536792
Link To Document :
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