Akademik Veri Yönetim Sistemi
14th International Congress On Advances in Civil Engineering, İstanbul, Türkiye, 6 - 08 Eylül 2021
Shotcrete has recently been applied in a new building repair and strengthening methods. In this method, new cementless geopolymer composite material was used on masonry walls (ACI 506R). The composite is a new binding material produced as an alternative binder to traditional cement. This binder has many advantages such as high strength, excellent resistance, and eco-friendliness. It is aimed to retrofit unreinforced masonry (URM) walls with geopolymer materials that can increase their out-of-plane stiffness and resistance. The study was investigated to determine the potential of using a high-performance spraying grout as a retrofit system for URM walls. Alkali activated composite material was produced with three different sodium hydroxide concentrations (i.e. 8M, 10M, and 12M). In shotcrete grout, rheology and high early-age strength measurements were used to determine the suitability of the mixes for spraying. For spraying, it was obtained to have a geopolymer grout with high flowability and low viscosity. As a result, the spraying geopolymer grout provided high early-age strength at ambient temperature as an application in the masonry wall.