Pembinaan berasaskan batu bata telah digunakkan dengan meluas di segenap pelusuk dunia khususnya dalam aplikasi pembinaan dinding sesuatu bangunan. Antara faktor pengunaan batu bata adalah disebabkan kerana mudah diperolehi, harga yang murah dan pengendalian kerja yang mudah. Namun, terdapat masalah yang timbul kesan daripada penggunaan batu bata tersebut antaranya ialah keretakan pada dinding bangunan apabila melebihi kapasiti bebanannya. Hal ini boleh diatasi dengan meningkatkan dan mengukuhkan daya tahan beban tanpa menukar bahan binaan. Dalam kajian ini untuk meningkatkan daya tahan struktur dinding batu, kaedah aplikasi polimer bertetulang gentian telah digunakan dalam pengukuhan kapasiti beban bagi batu bata. Terdapat empat jenis prisma batu konkrit telah diperkenalkan iaitu kedua belah bahagian dilekatkan dengan polimer karbon gentian diperkuatkan secara melintang (A), kedua belah bahagian dilekatkan dengan polimer karbon gentian diperkuatkan secara melintang (B), kawalan diikat secara menegak tanpa diperkuatkan dengan polimer kaca gentian (C), dimana setiap kumpulan berkuantiti 3 unit. Kesemua prisma diuji ini untuk membandingkan tingkah lakunya terhadap beban. Hasil pemerhatian dan ujian didapati nilai purata bagi beban gagal adalah seperti berikut (A) 148 kN , (B) 186 kN, (C) 180 kN, Kesimpulan dapat dibuat kekuatan prisma (B) berbanding (C) dan (A) adalah yang tertinggi membuktikan polimer bertetulang gentian boleh meningkatkan keupayaan struktur batu bata untuk menanggung beban yang tinggi disamping corak keretakkan dapat dikawal.
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Brick construction is widely uses in all parts of the world over the last century especially wall construction. The use of these materials is closely related to several factors, among which are easily obtained, cheap and easy job control. However, there are some disadvantages arise in the application of brick construction which brick wall will eventually crack wherever exceed the load capacity of the brick. Therefore, the study is focus on the strengthening method on wall construction without changing the construction materials. In this study, strengthening method using fibre reinforced polymer method is selected in order to observe the maximum load capacity and compare behaviour against the loading that can be obtained when strengthen by fibre reinforced polymer. Characterization tests such as absorption test and compressive strength test were conducted on concrete masonry unit (CMU) to determine its characteristics before mortar mix were used as a binder for the specimens. Compression and flexural tests were conducted to characterize the mortar mix used. A total of 12 prisms specimens with four different conditions were produced for the compressive strength test. Those prism specimens are classified as strengthened with CFRP in horizontal orientation (A), strengthened with GFRP in horizontal orientation (B), control specimen without fibre polymer (C). Each condition has a total of three specimens each to compare their outcomes. The results of observations and tests found the average value of the failure load is as follows (A) 148 kN, (B) 186 kN and (C) 180 kN. The conclusion that can be made is strength (B) which specimen strengthened with GFRP in horizontal pattern is the highest compare (C) and (A) which prove it can increase the load capacity of structure and crack pattern could be controlled.
Effect of horizontal pattern on masonry prism strengthened using carbon reinforced polymer (cfrp) and glass reinforced polymer (gfrp) / Nor Aerina Aerin Mohd Ruzi