A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Study on polymer composite strengthening systems for concrete columns
An experimental study was conducted to investigate the effects of various composite wrapping systems with different fibres (E-glass and carbon), resins (vinyl-ester and epoxy) and architectures on the strengthening efficiency for wrapped concrete columns. Raw material costs were evaluated to identify the cost-efficiency of each individual system. The results indicated that the use of E-glass fibres with vinyl-ester resin to reinforce concrete columns externally is effective with a low cost of raw materials. The epoxy resin-based system does not show much improvement in the load carrying capacity. The small R/T ratio (thickness of wrap/radius of concrete column) may cause a low strengthening efficiency. Glass fibre mats were hybridized with carbon fibre layers to obtain better mechanical properties and an increased thickness of the composite wraps. Reinforcing efficiency is also highly dependent on the composite architecture. The fibre reinforcement in the hoop direction gives a high confining efficiency to the concrete columns. However, a certain amount of fibres in the axial direction are still needed in designing composite wraps, especially for long, slender columns.
Study on polymer composite strengthening systems for concrete columns
An experimental study was conducted to investigate the effects of various composite wrapping systems with different fibres (E-glass and carbon), resins (vinyl-ester and epoxy) and architectures on the strengthening efficiency for wrapped concrete columns. Raw material costs were evaluated to identify the cost-efficiency of each individual system. The results indicated that the use of E-glass fibres with vinyl-ester resin to reinforce concrete columns externally is effective with a low cost of raw materials. The epoxy resin-based system does not show much improvement in the load carrying capacity. The small R/T ratio (thickness of wrap/radius of concrete column) may cause a low strengthening efficiency. Glass fibre mats were hybridized with carbon fibre layers to obtain better mechanical properties and an increased thickness of the composite wraps. Reinforcing efficiency is also highly dependent on the composite architecture. The fibre reinforcement in the hoop direction gives a high confining efficiency to the concrete columns. However, a certain amount of fibres in the axial direction are still needed in designing composite wraps, especially for long, slender columns.
Study on polymer composite strengthening systems for concrete columns
Zhang, Shi (author) / Ye, Lin (author) / Mai, Yiu-Wing (author)
Applied Composite Materials ; 7 ; 125-138
2000
14 Seiten, 18 Quellen
Article (Journal)
English
Strengthening of Concrete Columns
| Springer Verlag | 2023
Strengthening of Concrete Columns with Unidirectional Composite Sheets
| British Library Conference Proceedings | 1994
A Hybrid Composite System for Strengthening Concrete Columns
| British Library Conference Proceedings | 2018
Strengthening Reinforced Concrete Columns with use of Polymer Mortar
| British Library Conference Proceedings | 1995