Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Using alkali-activated slag ferrocement to strengthen corroded reinforced concrete columns
An experimental program was conducted to explore the use of alkali-activated slag (AAS) ferrocement to strengthen corroded reinforced concrete columns. Direct tensile tests were conducted on AAS plate specimens with different layers of stainless steel wire meshes (SSWM). Empirical equations for determining tensile strength of AAS ferrocement are provided with contribution from both AAS mortar and SSWM. Ten full-scale column specimens were prepared and seven of them suffered artificial accelerated corrosion at corrosion level of 8.9 %. Three corroded specimens were subsequently strengthened by AAS ferrocement with two layers of SSWM. The specimens were tested under axial, small and large eccentric compression, respectively. Experimental results have shown that the corroded columns suffer loading capacity losses from 21 to 30 % as compared with the control specimens. AAS ferrocement strengthening can enhance the loading capacity of corroded columns by 37–72 %. Confinement effect of AAS ferrocement is observed on specimens under axial and small eccentric compression. A model is proposed to predict the loading capacity of specimens strengthened by AAS ferrocement and reasonable predictions are obtained.
Using alkali-activated slag ferrocement to strengthen corroded reinforced concrete columns
An experimental program was conducted to explore the use of alkali-activated slag (AAS) ferrocement to strengthen corroded reinforced concrete columns. Direct tensile tests were conducted on AAS plate specimens with different layers of stainless steel wire meshes (SSWM). Empirical equations for determining tensile strength of AAS ferrocement are provided with contribution from both AAS mortar and SSWM. Ten full-scale column specimens were prepared and seven of them suffered artificial accelerated corrosion at corrosion level of 8.9 %. Three corroded specimens were subsequently strengthened by AAS ferrocement with two layers of SSWM. The specimens were tested under axial, small and large eccentric compression, respectively. Experimental results have shown that the corroded columns suffer loading capacity losses from 21 to 30 % as compared with the control specimens. AAS ferrocement strengthening can enhance the loading capacity of corroded columns by 37–72 %. Confinement effect of AAS ferrocement is observed on specimens under axial and small eccentric compression. A model is proposed to predict the loading capacity of specimens strengthened by AAS ferrocement and reasonable predictions are obtained.
Using alkali-activated slag ferrocement to strengthen corroded reinforced concrete columns
Fang, Shuai (Autor:in) / Lam, Eddie Siu-Shu / Wong, Wing-Ying
2017
Aufsatz (Zeitschrift)
Englisch
Operating Procedures, Materials Treatment , Theoretical and Applied Mechanics , Structural Mechanics , Civil Engineering , Strengthening , Corrosion of reinforcement , Reinforced concrete column , Materials Science, general , Compressive test , Engineering , Ferrocement , Building Materials , Alkali-activated slag
Using alkali-activated slag ferrocement to strengthen corroded reinforced concrete columns
| Springer Verlag | 2016
Using alkali-activated slag ferrocement to strengthen corroded reinforced concrete columns
| Online Contents | 2016
Using alkali-activated slag ferrocement to strengthen corroded reinforced concrete columns
| British Library Online Contents | 2017
Repairing Reinforced Concrete Columns using Ferrocement Laminates
| British Library Conference Proceedings | 1998
Repairing Reinforced Concrete Columns using Ferrocement Laminates
| British Library Online Contents | 1999