A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mortar type influence on mechanical performance of repaired reinforced concrete beams
https://orcid.org/0000-0003-4536-9699
Highlights Alkali-activated mortar presented higher mechanical performance and bond strength. Repaired reinforced concrete beam achieved properties similar to the reference beam. The type of mortar and the extension repair length were evaluated and they influenced the repair performance. The repair of 500 mm long presented better results than 1400 mm long.
Abstract Concrete structures deterioration is a current issue in civil construction and repair works are necessary in many situations, and to make it there are different commercial mortars. In order to improve the repair performance, new materials have been studied. This paper shows the results of an experimental study made with damaged reinforced concrete beams repaired with two different repair mortars: a commercial polymer-modified mortar (PM) and an alkali-activated mortar (AAM). The influence of the type of repair material and the repair length were investigated. The mortars properties showed that AAM had better mechanical properties and bond strength than PM. Both repair mortars (PM or AAM) had good performance as repair material, and the beams had flexural strength results similar to those achieved by reference beams. The study shows that the length of the repair in concrete is an important factor to be considered in repair works. The results show that AAM had good mechanical performance, and it is possible to use AAM as an efficient repair material in concrete.
Mortar type influence on mechanical performance of repaired reinforced concrete beams
https://orcid.org/0000-0003-4536-9699
Highlights Alkali-activated mortar presented higher mechanical performance and bond strength. Repaired reinforced concrete beam achieved properties similar to the reference beam. The type of mortar and the extension repair length were evaluated and they influenced the repair performance. The repair of 500 mm long presented better results than 1400 mm long.
Abstract Concrete structures deterioration is a current issue in civil construction and repair works are necessary in many situations, and to make it there are different commercial mortars. In order to improve the repair performance, new materials have been studied. This paper shows the results of an experimental study made with damaged reinforced concrete beams repaired with two different repair mortars: a commercial polymer-modified mortar (PM) and an alkali-activated mortar (AAM). The influence of the type of repair material and the repair length were investigated. The mortars properties showed that AAM had better mechanical properties and bond strength than PM. Both repair mortars (PM or AAM) had good performance as repair material, and the beams had flexural strength results similar to those achieved by reference beams. The study shows that the length of the repair in concrete is an important factor to be considered in repair works. The results show that AAM had good mechanical performance, and it is possible to use AAM as an efficient repair material in concrete.
Mortar type influence on mechanical performance of repaired reinforced concrete beams
https://orcid.org/0000-0003-4536-9699
Highlights Alkali-activated mortar presented higher mechanical performance and bond strength. Repaired reinforced concrete beam achieved properties similar to the reference beam. The type of mortar and the extension repair length were evaluated and they influenced the repair performance. The repair of 500 mm long presented better results than 1400 mm long.
Abstract Concrete structures deterioration is a current issue in civil construction and repair works are necessary in many situations, and to make it there are different commercial mortars. In order to improve the repair performance, new materials have been studied. This paper shows the results of an experimental study made with damaged reinforced concrete beams repaired with two different repair mortars: a commercial polymer-modified mortar (PM) and an alkali-activated mortar (AAM). The influence of the type of repair material and the repair length were investigated. The mortars properties showed that AAM had better mechanical properties and bond strength than PM. Both repair mortars (PM or AAM) had good performance as repair material, and the beams had flexural strength results similar to those achieved by reference beams. The study shows that the length of the repair in concrete is an important factor to be considered in repair works. The results show that AAM had good mechanical performance, and it is possible to use AAM as an efficient repair material in concrete.
Mortar type influence on mechanical performance of repaired reinforced concrete beams
Teixeira, Otacisio G. (author) / Geraldo, Rodrigo H. (author) / da Silva, Francisco Gabriel (author) / Gonçalves, Jardel P. (author) / Camarini, Gladis (author)
Construction and Building Materials ; 217 ; 372-383
2019-05-06
12 pages
Article (Journal)
Electronic Resource
English
Numerical modeling of reinforced concrete beams repaired with polymer modified mortar
| BASE | 2009
Durability Performance of Repaired Reinforced Concrete Beams
| Online Contents | 1994
Behaviour of pre-damaged reinforced concrete beams repaired with polymer-modified mortar
| British Library Conference Proceedings | 2006