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Durability Properties of Fibre-Reinforced Reactive Powder Concrete
Concrete used for sewer lines, piers and deck slabs of bridges, highways and nuclear power plants are prone to acid attacks. Hence it is required to study the mechanical properties along with durability aspects to assign its service life. In the present study, fibre-reinforced reactive powder concrete (FRPC) with varying silica fume content, superplasticizer and dosages of steel fibres are produced. Strengths under compression, flexure and tension have been obtained. Durability studies have been carried out by acid tests, salt crystallization test and permeability tests. Strengths of 140, 150 and 160 MPa have been achieved. To study the resistance against acid attacks, concrete is subjected to H2SO4 solution with 0.5, 1, 1.5 and 2% concentrations. Crystallization of salts is studied by immersing specimens in Na2SO4 solutions for 10–50 cycles. The concrete shows greater resistance towards the permeability of chloride ions. A considerable amount of loss in strength and mass is observed when subjected to a higher dosage of acid environment. An optimum dosage of 2.5% of fibres is suggested. Addition of fibres improved the strength and durability properties.
Durability Properties of Fibre-Reinforced Reactive Powder Concrete
Concrete used for sewer lines, piers and deck slabs of bridges, highways and nuclear power plants are prone to acid attacks. Hence it is required to study the mechanical properties along with durability aspects to assign its service life. In the present study, fibre-reinforced reactive powder concrete (FRPC) with varying silica fume content, superplasticizer and dosages of steel fibres are produced. Strengths under compression, flexure and tension have been obtained. Durability studies have been carried out by acid tests, salt crystallization test and permeability tests. Strengths of 140, 150 and 160 MPa have been achieved. To study the resistance against acid attacks, concrete is subjected to H2SO4 solution with 0.5, 1, 1.5 and 2% concentrations. Crystallization of salts is studied by immersing specimens in Na2SO4 solutions for 10–50 cycles. The concrete shows greater resistance towards the permeability of chloride ions. A considerable amount of loss in strength and mass is observed when subjected to a higher dosage of acid environment. An optimum dosage of 2.5% of fibres is suggested. Addition of fibres improved the strength and durability properties.
Durability Properties of Fibre-Reinforced Reactive Powder Concrete
Lecture Notes in Civil Engineering
Ranadive, M. S. (editor) / Das, Bibhuti Bhusan (editor) / Mehta, Yusuf A. (editor) / Gupta, Rishi (editor) / Dhundasi, Abbas Ali (author) / Khadiranaikar, R. B. (author) / Motagi, Kashinath (author)
2022-09-28
14 pages
Article/Chapter (Book)
Electronic Resource
English
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