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- 1. CARMELPolytechnic College, Punnapra Wisdom & Labour BASALT-FIBER-REINFORCED CONCREATE NAME :ROJIN J REG NO : 20010050 BRANCH : CIVIL ENGINEERING 26-01-23 1 CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE
- 2. CONTENT ➢Introduction ➢Properties of Basaltfibers ➢Fiber forming process ➢Mechanical properties of concrete of adding basalt fiber ➢Application of basalt fiber reinforced concrete ➢The advantage of basalt fiber reinforced concrete ➢Conclusion ➢Reference CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 2
- 3. INTRODUCTION ➢Concrete is acomposite material with a low tensile strength and a low strain limit. ➢The addition of fiber to the concrete mix can significantly improve the engineering properties of the concrete. ➢Due to high corrosion resistance, high ductility and sufficient durability, FRC is widely used. ➢Various types of fibers can be used in cement and concrete composite, such as steel or organic fibers. ➢Basalt fiber is a new kind of inorganic fiber extracted from melted basalt rock and is currently available commercially. CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 3
- 4. PROPERTIES OF BASALTFIBER ➢Physical property ▪ Colour: It is available in golden brown colour. ▪ Diameter: It is available in different diameter like 5.8 micron. ▪ Length : Available in 6mm, 8mm, 12mm. ▪ Density : Density of basalt fiber is 2.75g/cm^3. ▪ Coefficient of friction : The coefficient of friction may be between 0.42 to 0.50. CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 4
- 5. ➢Chemical properties • Basaltare more stable in strong alkalis. • Weight loss in boiling water,Alkaline and acid is also significantly lower. • Basalt fibers have very good resistance against alkaline environment, with the capability to with stand pH up to 13-14. • It also has good acid and salt resistance. CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 5
- 6. ➢Thermal Resistance •Basalt fiberhas excellent thermal properties to that of glass fibers. •It can easily withstand the temperature of 1200°c to 1300°c forhours continuously. •Unstressed basalt fibers and fabrics can maintain their integrity even up to 1250°c. CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 6
- 7. ➢ Mechanical Strength •It has high stiffness and strength. • Basalt fiber has slightly higher specific gravity 2.6-2.8. ➢Abrasion property • Basalt material is extremely hard and has hardness values between 5 to 9 on Mohr’s scale, which results in better abrasion property. CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 7
- 8. ➢Corrosion and fungiresistance •Basalt fiber has better corrosion resistance. •It does not under go any toxic reaction with water and air or gases also. •Moisture regain and moisture content of basalt fibers exist in the range of less than 1%. •Basalt material have strong resistance against the action of fungi and micro- organisms. CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 8
- 9. ➢Ecological friendliness •Basalt fibershave natural raw material, which is basalt rock it does not cause any damage to the health. •Basalt fibers has no biological hazards and solves waste disposal problems. •It does not clog incinerator as glass. Hence, it is incinerator friendly. CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 9
- 10. FIBER FORMING PROCESS 1)Crushed stone 2) Loading station 3) Transport station 4) Bath charging station 5) Initial melt zone 6) Secondary control heat zone 7) Filament form 8) Sizing 9) Strand formation 10) Fiber tension 11) Winding CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 10
- 11. ME CHANICAL PROPERTIESOF CONCRETE OF ADDING BASALT FIBERS Fig 3:-Split tensile test Fig 2:-Workability Fig 4:- Flexural test CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 11
- 12. Fiber content (kg/m^3)Slump (MM) 0 120 1 108 2 103 4 97 TABLE 3.1: SLUMP TEST Fiber content (kg/m^3) Split tensile strength (N/mm^2) 7 days 28 days 0 1.65 2.25 1 2.3 3.02 2 2.64 3.33 4 2.87 3.64 TABLE 3.3: SPLIT TENSILE STRENGTH TEST CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 12
- 13. COMPARISON OF BASALTFIBRE WITH OTHER FIBERS Properties Basalt fiber Steel fiber E glass fiber Carbon fiber Polypropyl en e Dens ity (g/c mᶟ) 2.65 7.85 2.60 1.80 0.91 Elasti c modu lus (Gpa) 100-110 210 76 297 38 Tensil e stren gth (Gpa) 4.15-4.80 0.5 3.45 6.21 0.27-0.65 CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 13
- 14. APPLICATION OF BASALTFIBERS REINFORCED CONCRETE ➢ Basalt has good electrical and sound insulating properties and chemical resistance, especially in strong alkalis ➢Basalt composite pipes can be used to transport corrosive liquids and gases. ➢Field application of basalt fiber reinforcement includes concrete industrial concrete floors, runways in airport, motor way, industrial floors, in shops where heavy equipment is used, internal reinforcement of tunnels and channels, and military installation. CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 14
- 15. ADVANTAGES OF BASALTFIBER REINFORCED CONCRETE ➢Reduces the width of the cracks. ➢The total cost of the construction work reduces. ➢The fiber can be easily mixed. ➢The cost of repairs and maintenance greatly reduces due to fiber reinforced concrete long life time. ➢The thickness of the concrete layer can be reduced to half. ➢Basalt fiber is not liable to galvanic corrosion, comparing to usual rebar that is an electrical conductor and can have the cathode effect. CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 15
- 16. ➢Technical advantages ofBasalt Fibers used in concrete structure • Low level of micro cracks (up to 90%). • Increases flexural strength (up to 35%) • Increases concrete fatigue strength and resistance (up to 40%) • Increases the frost resistance (up to 35%) • Increases water tightness (up to 50%) • Increases surface endurance of concrete ( up to 70%) • Decreases slivering of corners and edges ( up to 90%) CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 16
- 17. • Fig5 :Basaltrebar Fig6:Basalt geo-textile Fig7:Copper fiber • Fig8:CBF filaments Fig9:CBF roving Fig10:Basalt rock CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 17
- 18. CONCLUSION ➢The basalt fibersis now being popular choice for the material scientist for the replacement of steel and carbon fibers due to its high rigidity and low elongation or extension at break. ➢Its supreme tenacity value makes it as a useful reinforcement material in the present and also for the future era to come. ➢The most important contribution due to the addition of basalt fibers is the change of mode of failure from a brittle to ductile, when subjected to compression, bending, tension and impact with improvements in properties of concrete specified in the catalogue provided by the supplier. ➢The basalt fiber rebar having full resistance against corrosion may be good alternative for the reinforcement of concrete structures, like RC bridge girders subjected to an environmental attack. ➢Finally we may concluded that the basalt fiber can be used as a good alternative strengthening material instead of glass fiber, carbon fiber, steel fiber, CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 18
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- 20. REFFERENCE 1.JongsungSim, Park, C& Moon, D 2005, ‘Characteristics of basalt fiber as a strengthening material for concrete structures’, Composites, Vol. 36, pp.504-512. 2.Li, Wang & Xu, J 2009, ‘Mechanical properties of basalt fiber reinforced geopolymeric concrete under impact loading’, Materials Science and Engineering, Vol. 505, pp. 178-186. 3.Ludovico, M., Prota, A., &Manfredi, G., 2010, ‘Structural upgrade using basalt fibers for concrete confinement’, CARMELPolytechnic College, Punnapra BASAL T FIBER REINFORE CONCRETE 1/26/2023 20
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