Flexural performance of textile fine grained mortar containing risk husk ash as a partial cement replacement in reinforced concrete beams
External strengthening of RC beam become a popular method to reduce deterioration. Due to highest demanding on external strengthening, a new innovation was introduced called as textile fine grained mortar (TFGM). TFGM is a composite material which is combined fine grained mortar (FGM) that utilized...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2018
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/349/1/24p%20NOOR%20SHUHADA%20MOHAMMAD.pdf http://eprints.uthm.edu.my/349/2/NOOR%20SHUHADA%20MOHAMMAD%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/349/3/NOOR%20SHUHADA%20MOHAMMAD%20WATERMARK.pdf |
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| Summary: | External strengthening of RC beam become a popular method to reduce deterioration. Due to highest demanding on external strengthening, a new innovation was introduced called as textile fine grained mortar (TFGM). TFGM is a composite material which is combined fine grained mortar (FGM) that utilized rice husk ash (RHA) as a partial cement replacement material of FGM and textile reinforcement made from glass fibre reinforcement called as alkali resistant (AR) glass. Characteristic of the binder were firstly performed by conducting X Ray Fluorescence, X Ray Diffraction, particle size distribution and surface morphology. From characterization of RHA, it is categorized as a pozzolanic material from chemical composition, amorphous form of RHA and fineness of RHA. FGM with different percentage of RHA replacement varies from 0 %, 10%, 20 %, 30 % and 40% was investigated under compressive and flexural strength. Optimum replacement of RHA in FGM also determined. 20 % of RHA replacement in cement consumption of FGM gave excellent of compressive and flexural strength. Utilization of 20 % RHA in FGM was continuing to use when FGM combined with AR glass as textile reinforcement and produced new composite material TFGM. Several layers of TFGM were selected in this study, namely 2 layers, 4 layers, 6 layers and 8 layers. Flexural strength was conducted to determine the prism increment in flexural when externally bonded with TFGM. After flexural prism were done, 4 layers and 8 layers of TFGM were selected as desired layer to be applied on RC beams. Flexural test was perform on RC beams and resulted 4 layers of TFGM shown highest in flexural compared to control RC beams. But, 8 layers of TFGM were resulted failed due to delamination at the end of TFGM. As a conclusion, TFGM were very excellent in strengthening of RC beams. RHA is a highly promising in increments of flexural strength and AR glass also reduced the deflection of RC beams. |
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