Strengthening of brick masonry with PVA fiber reinforced cement stucco

Arısoy, Bengi; Ercan, Emre; Demir, Ali

doi:10.1016/j.conbuildmat.2014.12.093

Cited by 20 publications

(7 citation statements)

References 11 publications

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“…(4) Fiber-reinforced cement composite retrofitting technique Catherin et al [37] investigated the load-carrying capacity and deformability of unreinforced masonry scaled walls with textile-reinforced mortar (TRM) and FRP subjected to cyclic out-of-plane bending. Arisoy et al [38] conducted an experimental study of retrofitting masonry walls with polyvinyl alcohol (PVA) fiber-reinforced cement stucco. The shear strengths of the solid and high-strength brick walls were approximately 1.5 times and 2.5 times higher, respectively, than that of a regular brick wall.…”

Section: ) Frp Retrofitting Techniquementioning

confidence: 99%

Enhancing the In-Plane Behavior of a Hybrid Timber Frame–Mud and Stone Infill Wall Using PP Band Mesh on One Side

et al. 2022

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Traditional village dwellings in China consisting of timber frames with mud and stone infill walls represent an important part of cultural heritage and civilization. Due to the lack of an effective link between the wood frame and the infill and the poor cohesiveness of clay, the masonry infill can collapse during an earthquake, whereas the wood frame suffers minimal damage. In this study, current retrofitting techniques for village buildings were investigated and discussed. A method using polypropylene (PP) band mesh and cement mortar to retrofit the timber frame with a mud and stone infill was proposed and the connection construction details were designed. In-plane static cyclic tests were conducted on two full-scale wood–stone hybrid walls reinforced on one side with different grid sizes of the PP band mesh. The failure behaviors of the reinforced and non-reinforced sides of the specimens were compared, and the failure mechanics and seismic capacity of the two specimens, i.e., the strength, stiffness, ductility, and energy dissipation, were investigated. The results were also compared with those of a previous frame with stone infill without pebbles and no reinforcement. The study indicated that the retrofitting method strengthened the integrity and lateral resistance of the hybrid structure and prevented the collapse of the stone infill of the reinforced surface in a plane earthquake. The grid size of the PP band mesh substantially affected the lateral performance of the reinforced specimens. The hybrid wall with the narrow PP band mesh grid (150 mm × 150 mm) had a higher lateral stiffness (79%) and lateral capacity (50%) than the wall with the wide grid (250 mm × 250 mm). However, the narrow PP band mesh resulted in a lower ductility of the wall than the wide PP band mesh. The involvement of pebbles in the stone infill led to collapses sooner and a weaker lateral resistance than in the structure without pebble infill.

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Section: ) Frp Retrofitting Techniquementioning

confidence: 99%

Enhancing the In-Plane Behavior of a Hybrid Timber Frame–Mud and Stone Infill Wall Using PP Band Mesh on One Side

et al. 2022

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“…[ 10,11 ] The high‐strength/high‐modulus polyvinyl alcohol fiber (PVA), with high crystallinity and high degree of orientation, has been widely utilized in the field of polymer composite reinforcement owing to its prominent mechanical property, good affinity and adhesion with matrix, as well as low cost. [ 12 ] In view of performance of PVA fiber, the composite strategy incorporated the high‐strength/high‐modulus PVA fiber into PAA/HA composite may integrate these advantages meanwhile avoiding their shortcomings to get a more effective load‐bearing material. It should be noted that, nonetheless, the weak bonds at the respective interfacial regions may bring about the inadequate integration between the PVA fiber, HA and PAA substrate, making stress not be effectively transmitted, thereby affecting the mechanical performance of the obtained materials.…”

Section: Introductionmentioning

confidence: 99%

High‐strength/high‐modulus polyvinyl alcohol fiber reinforced poly(amino acid)/hydroxyapatite composite for load‐bearing orthopedics applications

Lyu

Chen

et al. 2023

Polymer Composites

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Bone defects in the load‐bearing area require bone reconstruction using strong biomaterial with mechanical properties like cortical bone. Herein, the high‐strength/high‐modulus polyvinyl alcohol fiber (PVA) was first designed to incorporate into poly(amino acid) (PAA)/hydroxyapatite (HA) to obtain a new poly(amino acid)/hydroxyapatite/polyvinyl alcohol fiber (PAA/HA/PVA) composite via a melt extrusion process. To improve the interfacial adhesive performance, the titanate coupling agent HY‐109 [isopropyl tris(dodecylbenzenesulfonyl) titanate] was used for simultaneously graft modification of the PVA fiber and HA (TPVA, THA). The effect of their components on the mechanical properties and degradation ability were investigated by electromechanical universal testing machine and in vitro phosphate buffer solution soaking. The results indicated that the PAA/30THA/20TPVA composite had the most ideal mechanical and degradation properties, which far exceed those of PAA and PAA/THA composite. In addition, in vitro simulated body fluid immersion and cell culture experiment showed the PAA/THA/TPVA composites boosted in vitro bioactivity and exhibited excellent cytocompatibility and osteogenic activity in cell attachment, proliferation, alkaline phosphatase activity, matrix mineralization, and osteogenesis‐related gene expression. These reports demonstrated that the developed PAA/THA/TPVA composite displayed comprehensive performance optimizations, which showed its potential as a novel biomaterial to be applied as load‐bearing implant in the field of orthopedics.

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“…In some cases, alteration/modifications in existing masonry structures due to change in purpose and usage of building also demand strengthening of masonry walls subjected to increased gravity loads. Strengthening / retrofitting of existing masonry structures may be done by many well-known techniques such as using Fiber-Reinforced Polymer (FRP) composite (ElGawady et al, 2006;Marcari et al, 2007 ;Wei et al, 2007;Mahmood and Ingham, 2011;Bui and Limam, 2014;Mazzotti et al, 2015;Ramaglia et al, 2020), steel strips and bars (Farooq et al, 2014;Triwiyono et al, 2015;Ferretti et al, 2020;El-Salakawy et al, 2020;Yao et al, 2021), shotcrete (Lin et al, 2015;Ghezelbash et al, 2020) and fiber reinforced cement plastering (Luccioni and Rougier, 2011;Arisoy et al, 2015;Deng et al, 2019;Codispoti et al,2015). Although these common methods of strengthening masonry have many successful application cases, most of these techniques have some disadvantages such as time consumption in application, reduction in available space, disturbance of occupancy, adverse effects on aesthetics.…”

Section: Introductionmentioning

confidence: 99%

Strengthening of Un-Reinforced Brick Masonry Walls Using Epoxy Mortar

Hameed

Mahmood

Riaz

et al. 2021

Journal of Applied Engineering Sciences

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This study is carried out to investigate the effectiveness of using externally applied epoxy mortar on joints of masonry wall panels to enhance their load carrying capacity under axial compressive and lateral loads. A total of six 113 mm thick masonry wall panels of size 1200 x 1200 mm were constructed for this study. Four out of six walls were strengthened using locally available CHEMDUR-31 epoxy mortar on joints. The remaining two walls were tested as control specimens. The control and strengthened wall panels were tested under axial compression and lateral loads. In axial compression test, out of plane central deflection and vertical strain at the center of wall panel were recorded while in lateral load test, in-plane lateral displacement of wall and horizontal strain at the center were recorded at each load increment. Failure pattern of each wall panel is also studied to notice its structural behavior. The results of this experimental study showed an increase of 45% and 60% in load carrying capacity under axial compression and lateral bending, respectively by the use of strengthening technique employed in this study.

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Strengthening of brick masonry with PVA fiber reinforced cement stucco

Cited by 20 publications

References 11 publications

Enhancing the In-Plane Behavior of a Hybrid Timber Frame–Mud and Stone Infill Wall Using PP Band Mesh on One Side

Enhancing the In-Plane Behavior of a Hybrid Timber Frame–Mud and Stone Infill Wall Using PP Band Mesh on One Side

High‐strength/high‐modulus polyvinyl alcohol fiber reinforced poly(amino acid)/hydroxyapatite composite for load‐bearing orthopedics applications

Strengthening of Un-Reinforced Brick Masonry Walls Using Epoxy Mortar

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