The effect of mortar grade on the out-of-plane behaviour of low-strength masonry wall strengthened with welded wire mesh

Out-of-plane bending of masonry wall embedding with welded wire mesh (WWM) in different orientations

“…9d). This is due to the lower yield strength of the WWM used for the study as compared to other researchers [1,2,10,44]. Similar observations also occur for W2A specimens with sudden brittle failure with the failure along the bed joint along the centre line of the load acting on the specimens (Fig.…”

“…Two sets of walls were cast for the present study: Set 1 with specimen sizes of 600 × 480 × 120 mm with 6 courses of bricks and set 2 with wall specimen of size 645 × 470 × 120 mm with 8 courses of bricks using locally available bricks of size 220 × 110 × 70 mm. The mortar joints are of thickness 12 mm and plastering of thickness 10 mm with cement to fine aggregate ratio of 1:4 for both specimen sizes [2]; 10 specimens were cast for each specimen size with 2 as control specimen without any WWM and 18 as reinforced with WWM as shown in Fig. 3 and then cured for 28 days.…”

“…(1) R = P max + 0.75P s l bt 2 where P max is the peak load, P s is the self-weight of the specimen, l is the span between the supports, t is the average thickness of the specimen and b is the average width of the specimen. The flexural strength of masonry specimens is estimated by modulus of rupture by taking the geometry of the specimens into consideration.…”

“…As most of the buildings are not strengthened, it would lead to casualties and loss of life during moderate or strong earthquakes. Masonry structures are used as load-bearing and non-load-bearing structures, housing or infill in framed structures [2]. Bricks are generally used as the main component of such structures due to its good strength, good sound and thermal insulation and ease of constructions.…”

“…They observed that specimens with both sides reinforced with WWM show flexural strength of about 0.9 times more than those reinforced only along one side. Syiemiong and Marthong [2] observed that the mortar grade has no influence on the unstrengthened specimens but effects the ductility and flexural strength of the strengthened specimen with welded wire mesh. The study of the effect of different reinforcement percentage and reinforcing the bed joints of masonry walls would encourage the use of various strengthening materials [13,[24][25][26][27][28][29][30][31][32][33][34].…”