A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Durability of Steel-Polypropylene Hybrid Fiber Concrete
Formation of micro-cracks due to shrinkage, lower tensile strength and higher brittleness results in reduced durability. Literature suggests that steel fibers (SF) reduce brittleness of cement concrete, and increases tensile strength. Polypropylene fibers (PF), on the other hand, is observed to provide high shrinkage crack resistance. In this study, experiments were conducted to determine change in durability by utilizing the benefits of both of these fibers. Lower fraction (1% by weight) of fibre were used for that purpose and four different combinations were used to check the durability as compared to normal concrete. The combinations of fibers used were 1% SF, 0.80% SF and 0.20% PF, 0.70% SF and 0.30% PF, 0.60% SF and 0.40% PF. Rapid chloride penetration test, water permeability test and water absorption test were used to assess the durability. Results suggest that although 1% SF provide satisfactory results. However, considering all the tests, combination of 0.80% SF and 0.20% PF yields better results in terms of durability. Thus, the above-mentioned combination of fibers is recommended for improving the durability of concrete mixes.
Durability of Steel-Polypropylene Hybrid Fiber Concrete
Formation of micro-cracks due to shrinkage, lower tensile strength and higher brittleness results in reduced durability. Literature suggests that steel fibers (SF) reduce brittleness of cement concrete, and increases tensile strength. Polypropylene fibers (PF), on the other hand, is observed to provide high shrinkage crack resistance. In this study, experiments were conducted to determine change in durability by utilizing the benefits of both of these fibers. Lower fraction (1% by weight) of fibre were used for that purpose and four different combinations were used to check the durability as compared to normal concrete. The combinations of fibers used were 1% SF, 0.80% SF and 0.20% PF, 0.70% SF and 0.30% PF, 0.60% SF and 0.40% PF. Rapid chloride penetration test, water permeability test and water absorption test were used to assess the durability. Results suggest that although 1% SF provide satisfactory results. However, considering all the tests, combination of 0.80% SF and 0.20% PF yields better results in terms of durability. Thus, the above-mentioned combination of fibers is recommended for improving the durability of concrete mixes.
Durability of Steel-Polypropylene Hybrid Fiber Concrete
Lecture Notes in Civil Engineering
Saha, Suman (editor) / Sajith, A. S. (editor) / Sahoo, Dipti Ranjan (editor) / Sarkar, Pradip (editor) / Chakravarty, Hillol (author) / Sinha, Sanjeev (author) / Venkataramana, Vavitikalva (author) / Kumar, Bimal (author)
2022-10-05
7 pages
Article/Chapter (Book)
Electronic Resource
English
Research on the Durability of Polypropylene Fiber Concrete
| Trans Tech Publications | 2011
Research on the Durability of Polypropylene Fiber Concrete
| British Library Conference Proceedings | 2011