Abstract
This paper is devoted to the analysis of fiber-reinforced polymer (FRP) reinforced concrete elements under thermal loads. Nonmetallic reinforcing bars present high values of transverse coefficients of the thermal expansion (CTE) with respect to concrete; as a consequence, when temperature increases, tensile stresses take place within the concrete that may produce splitting cracks and, eventually, the concrete cover failure if the confining action is not sufficient. An analytical model is proposed to determine the values of temperature increase (ΔT) corresponding to the first appearance of the cracking phenomenon and to the concrete cover failure. An experimental investigation carried out on concrete specimens reinforced with FRP reinforcing bars is described, and obtained results are compared with theoretical predictions.
| Original language | English |
|---|---|
| Pages (from-to) | 332-339 |
| Number of pages | 8 |
| Journal | ACI Materials Journal |
| Volume | 98 |
| Issue number | 4 |
| State | Published - Jul 1 2001 |
| Externally published | Yes |
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Keywords
- Cover
- Cracking
- Polymers
- Spalling
- Thermal expansion
ASJC Scopus subject areas
- Building and Construction
- Materials Science(all)
Cite this
Effects of thermal loads on concrete cover of fiber-reinforced polymer reinforced elements : Theoretical and experimental analysis. / Aiello, Maria A.; Focacci, Francesco; Nanni, Antonio.
In: ACI Materials Journal, Vol. 98, No. 4, 01.07.2001, p. 332-339.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of thermal loads on concrete cover of fiber-reinforced polymer reinforced elements
T2 - Theoretical and experimental analysis
AU - Aiello, Maria A.
AU - Focacci, Francesco
AU - Nanni, Antonio
PY - 2001/7/1
Y1 - 2001/7/1
N2 - This paper is devoted to the analysis of fiber-reinforced polymer (FRP) reinforced concrete elements under thermal loads. Nonmetallic reinforcing bars present high values of transverse coefficients of the thermal expansion (CTE) with respect to concrete; as a consequence, when temperature increases, tensile stresses take place within the concrete that may produce splitting cracks and, eventually, the concrete cover failure if the confining action is not sufficient. An analytical model is proposed to determine the values of temperature increase (ΔT) corresponding to the first appearance of the cracking phenomenon and to the concrete cover failure. An experimental investigation carried out on concrete specimens reinforced with FRP reinforcing bars is described, and obtained results are compared with theoretical predictions.
AB - This paper is devoted to the analysis of fiber-reinforced polymer (FRP) reinforced concrete elements under thermal loads. Nonmetallic reinforcing bars present high values of transverse coefficients of the thermal expansion (CTE) with respect to concrete; as a consequence, when temperature increases, tensile stresses take place within the concrete that may produce splitting cracks and, eventually, the concrete cover failure if the confining action is not sufficient. An analytical model is proposed to determine the values of temperature increase (ΔT) corresponding to the first appearance of the cracking phenomenon and to the concrete cover failure. An experimental investigation carried out on concrete specimens reinforced with FRP reinforcing bars is described, and obtained results are compared with theoretical predictions.
KW - Cover
KW - Cracking
KW - Polymers
KW - Spalling
KW - Thermal expansion
UR - http://www.scopus.com/inward/record.url?scp=0035412956&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035412956&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0035412956
VL - 98
SP - 332
EP - 339
JO - ACI Materials Journal
JF - ACI Materials Journal
SN - 0889-325X
IS - 4
ER -