Optimization of steel fibre reinforced concrete as concrete topping in composite slab construction

Optimization of steel fibre reinforced concrete as concrete topping in composite slab construction

Steel fibre can act as an alternative to replace the conventional prefabricated welded wire mesh (PWWM). It serves as a secondary reinforcement in concrete topping of the precast composite slab construction. Hence, an in-depth study on the performance was conducted to prove the notion. The study wa...

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Bibliographic Details
Main Author: Noor Nabilah, Sarbini
Format: Thesis
Language:English
Published: 2014
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/12072/
http://umpir.ump.edu.my/id/eprint/12072/
http://umpir.ump.edu.my/id/eprint/12072/1/NOOR%20NABILAH%20BINTI%20SARBINI.PDF
id ump-12072
recordtype eprints
spelling ump-120722017-12-11T03:24:05Z http://umpir.ump.edu.my/id/eprint/12072/ Optimization of steel fibre reinforced concrete as concrete topping in composite slab construction Noor Nabilah, Sarbini TA Engineering (General). Civil engineering (General) Steel fibre can act as an alternative to replace the conventional prefabricated welded wire mesh (PWWM). It serves as a secondary reinforcement in concrete topping of the precast composite slab construction. Hence, an in-depth study on the performance was conducted to prove the notion. The study was essential due to the differences of behaviours between steel fibre in the compression and the flexural zone of the composite slab. In fact, there was no sufficient knowledge of compression mechanism of steel fibre reinforced concrete (SFRC) due to the lack of study in this area. The main objectives of this study were to investigate the structural performance of composite slab where SFRC was applied in the concrete topping and to develop an analytical model to predict the shear strength of the composite slab by validating the model with the experimental results. Aspect ratio and volume fraction were emphasised in selecting the most suitable type of steel fibre in this study. The experimental results showed that SFRC concrete topping improved the ultimate load and failure mechanism. The results also suggested that the ideal types of steel fibre to be applied in the concrete topping are SF60 and SF33 with optimum volume fraction between 0.75% and 1.00%. Furthermore, it was proven that the SFRC concrete topping has improved the shear capacity of the composite slab by 17%. The performance of the proposed analytical model in predicting the ultimate shear capacity of the composite slab with SFRC concrete topping was considered good due to its strong correlation with the experimental data. This suggested that steel fibre was suitable to replace PWWM as secondary reinforcement in concrete topping in precast composite slab construction. The proposed analytical model can also be used to predict the shear capacity of the composite slab with SFRC concrete topping. 2014-06 Thesis NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12072/1/NOOR%20NABILAH%20BINTI%20SARBINI.PDF Noor Nabilah, Sarbini (2014) Optimization of steel fibre reinforced concrete as concrete topping in composite slab construction. PhD thesis, Universiti Teknologi Malaysia. http://iportal.ump.edu.my/lib/item?id=chamo:87625&theme=UMP2
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Noor Nabilah, Sarbini
Optimization of steel fibre reinforced concrete as concrete topping in composite slab construction
description Steel fibre can act as an alternative to replace the conventional prefabricated welded wire mesh (PWWM). It serves as a secondary reinforcement in concrete topping of the precast composite slab construction. Hence, an in-depth study on the performance was conducted to prove the notion. The study was essential due to the differences of behaviours between steel fibre in the compression and the flexural zone of the composite slab. In fact, there was no sufficient knowledge of compression mechanism of steel fibre reinforced concrete (SFRC) due to the lack of study in this area. The main objectives of this study were to investigate the structural performance of composite slab where SFRC was applied in the concrete topping and to develop an analytical model to predict the shear strength of the composite slab by validating the model with the experimental results. Aspect ratio and volume fraction were emphasised in selecting the most suitable type of steel fibre in this study. The experimental results showed that SFRC concrete topping improved the ultimate load and failure mechanism. The results also suggested that the ideal types of steel fibre to be applied in the concrete topping are SF60 and SF33 with optimum volume fraction between 0.75% and 1.00%. Furthermore, it was proven that the SFRC concrete topping has improved the shear capacity of the composite slab by 17%. The performance of the proposed analytical model in predicting the ultimate shear capacity of the composite slab with SFRC concrete topping was considered good due to its strong correlation with the experimental data. This suggested that steel fibre was suitable to replace PWWM as secondary reinforcement in concrete topping in precast composite slab construction. The proposed analytical model can also be used to predict the shear capacity of the composite slab with SFRC concrete topping.
format Thesis
author Noor Nabilah, Sarbini
author_facet Noor Nabilah, Sarbini
author_sort Noor Nabilah, Sarbini
title Optimization of steel fibre reinforced concrete as concrete topping in composite slab construction
title_short Optimization of steel fibre reinforced concrete as concrete topping in composite slab construction
title_full Optimization of steel fibre reinforced concrete as concrete topping in composite slab construction
title_fullStr Optimization of steel fibre reinforced concrete as concrete topping in composite slab construction
title_full_unstemmed Optimization of steel fibre reinforced concrete as concrete topping in composite slab construction
title_sort optimization of steel fibre reinforced concrete as concrete topping in composite slab construction
publishDate 2014
url http://umpir.ump.edu.my/id/eprint/12072/
http://umpir.ump.edu.my/id/eprint/12072/
http://umpir.ump.edu.my/id/eprint/12072/1/NOOR%20NABILAH%20BINTI%20SARBINI.PDF
first_indexed 2023-09-18T22:13:18Z
last_indexed 2023-09-18T22:13:18Z
_version_ 1777415171584557056

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