Steelfibre reinforced concrete and synthetic fibre reinforced concrete
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Steel fibres and synthetic fibres can be used to reinforce concrete but have different material properties and appropriate applications. Polymer fibres are not suitable for structural reinforcement due to their low Young's modulus, which leads to large crack openings and deformations as well as creep. In addition, polymer fibres will melt at temperatures of 165°C whereas macro synthetic fibres will lose their mechanical properties at 50°C and dissolve at 160°C. It is important to select the right type of fibre for the intended concrete application.
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This presentation gives a brief introduction on FRC's history, definition and why is it used. Types of FRC's and it's applications is explained in detail in later stages.Also, it covers various properties that affects FRC and a Case study in end.
Glass fibers reinforced concrete
This document discusses glass fiber reinforced concrete (GFRC). It defines GFRC as a composite material made of cement, mortar or concrete mixed with discrete glass fibers. The fibers improve several properties of concrete including tensile strength, durability, and crack resistance. Different types of glass fibers are described as well as factors that influence GFRC properties. Common applications mentioned include architectural elements, interior/exterior details, and fire resistant structures.
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Gursharan 0f thesis 0999
1. This document discusses the use of polypropylene fibres in concrete, including their types, properties, and effects.
2. Polypropylene fibres come in different types like monofilament, mesh, and twisted waves. They are resistant to chemicals and have high melting points.
3. When added to concrete in amounts between 0.1-1.5% of volume, polypropylene fibres can increase tensile strength, flexural strength, impact resistance, and reduce plastic and drying shrinkage cracks. However, they may slightly reduce workability and compressive strength.
COMPOSITES
This document discusses Solanki Utkarshsinh B's final year project on composite materials and fiber reinforced polymer matrix composites. It provides an overview of composites, including a definition, the reinforcement and matrix materials used, and applications. Specifically, it discusses polymer matrix composites, including common fibers like glass, carbon, and aramid. It also summarizes the pultrusion process for manufacturing fiber reinforced polymer rebar and provides test results showing the microstructure of the rebar.
Review Paper on Properties of Properties of Concrete using Steel Fiber Waste
The plain cement concrete has very low tensile strength, restricted pliability, and little protection from breaking. Inward miniaturized scale breaks are innately present in the concrete and its poor rigidity is because of the proliferation of such small cracks, in the long run prompting fragile disappointment of the concrete. The most generally acknowledged solution for this flexural shortcoming of cement is the regular fortification with high quality steel. Regardless of the way that these procedures offer flexibility to people, they however dont grow the trademark unbending nature of solid itself. In like manner the help putting and profitable compaction of RCC is amazingly troublesome if the solid is of low workability especially by virtue of overpowering solid M 25 . In plain concrete and near feeble materials, assistant parts scaled down scale breaks become even before stacking, particularly on account of drying shrinkage or distinctive purposes behind volume change. The width of these breaks on occasion outperforms a few microns, yet their two estimations may be of higher enormity. Whenever stacked, the miniaturized scale airs out proliferate and up, and attributable to the impacts of pressure fixation, extra breaks frame in spots of minor deformities. The auxiliary splits continue gradually. The advancement of such miniaturized micro crack is the primary driver of inelastic twisting in concrete. It has been perceived that the expansion of little, firmly divided and consistently scattered strands to cement would go about as break arrester and would considerably enhance its static and dynamic properties. This sort of cement is known as fibre reinforces concrete. Hitesh Malviya | Pratiksha Malviya ""Review Paper on Properties of Properties of Concrete using Steel Fiber Waste"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd22858.pdf
Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/22858/review-paper-on-properties-of-properties-of-concrete-using-steel-fiber-waste/hitesh-malviya
Dr.amit tooth coloured-presentation
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Dental Polymers.pptx
This document discusses dental polymers, including their classification, properties, and uses. It provides information on the basic nature of polymers and how they are formed through polymerization reactions. Key points include:
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Glass fiber
Glass fiber, also called fiberglass, is a synthetic fiber made from extremely fine glass fibers. It is made by fusing together oxides like silicon, boron, and phosphorus. The basic component is silica (SiO2), which forms a polymer network of SiO4 tetrahedrons bonded at the corners. Glass fiber has properties like dimensional stability, moisture resistance, high strength to weight ratio, resistance to heat and chemicals, and is used for electrical insulation and applications requiring strength and light weight.
hybrid fiber blended concrete.pptx
This document describes an experimental study on the mechanical properties of hybrid fiber reinforced blended concrete. In phase 1, ordinary Portland cement is partially replaced with metakaolin and dolomite at various percentages to determine the optimum mix. In phase 2, hybrid fibers of steel and carbon fibers are added at different percentages. In phase 3, the optimum mineral admixtures and fiber mix from phases 1-2 are used to test the mechanical properties of the blended concrete. Tests include compression, splitting tensile, and flexural strength at 7, 14, and 28 days to evaluate the concrete.
Improvement of properties of concrete by adding fibers
This document discusses a study on improving the properties of concrete by adding fibers. It summarizes that concrete is strong in compression but weak in tension. It then discusses different types of fibers that can be added like steel fibers, polypropylene fibers, carbon fibers, and glass fibers. The study focuses on adding steel fibers and polypropylene fibers to concrete mixtures to test their effect on compressive and tensile strength. The results showed that mixtures with both steel and polypropylene fibers had higher strengths compared to plain concrete at 7 and 28 days. Applications of fiber reinforced concrete included industrial floors, building structures, tunnels and more.
Zero Thermal alternative cementitious material and binder
This document summarizes a patented algae-cultured crypto-biotic visco-elastomeric polymer that can be used as an advanced additive and supplementary binder. It is produced through a process that simulates diatom cell wall formation using algae. The polymer has multiple technical advantages, including forming strong covalent bonds, having adjustable strength from 3,000-6,000 PSI, being water and acid resistant, and allowing concrete to set quickly in any weather. Testing shows the polymer-enhanced concrete can withstand hydrochloric acid exposure and has improved compressive strengths over traditional Portland cement. The polymer allows for applications like green cement and improved concrete durability.
Unit-1 Lecture-5 - Light Weight Construction Materials by Brig. S.K. Sharma
A brief description on Light weight Construction Materials, different types of fibre and application fo fibre reinforced concrete.
PPT.pptx
This document evaluates the mechanical properties of composite materials reinforced with metallic, carbon, and glass fibers. The composites are produced using various fiber combinations through hand layup and compression molding. The composites will undergo tensile, impact, flexural, and compression testing according to ASTM standards to characterize the materials and determine which fiber combinations produce composites that can be used for automotive and sports applications. Literature on fiber reinforced polymer composites and the mechanical properties of the fiber materials is also reviewed.
IRJET- Experimental Study On Polypropylene Fiber Reinforcedconcrete
This document reports on an experimental study of polypropylene fiber reinforced concrete. Various volume fractions of polypropylene fibers (0%, 0.2%, 0.3%, 0.5%) were added to concrete mixtures to study their effects on properties such as workability, compressive strength, tensile strength, and flexural strength. The addition of fibers decreased workability but increased tensile and flexural strength, with 0.5% fiber volume achieving the highest strengths. Silica fume was also used as a cement replacement at 8% by weight, and its presence further improved mechanical properties. Test results showed that polypropylene fibers can improve the durability and mechanical performance of concrete.
AN_EXPERIMENTAL_INVESTIGATION_ON_STRENGT.pdf
Concrete made with Portland cement has certain characteristics: it is relatively strong in compression but weak
in tension and tends to be brittle. These two weaknesses have limited its use. Another fundamental weakness of
concrete is that cracks start to form as soon as concrete is placed and before it has properly hardened. These
cracks are major cause of weakness in concrete particularly in large on site applications leading to subsequent
fracture and failure and general lack of durability
Composite materials.pdf .
The documents discuss composite materials, which are combinations of two or more materials that have improved properties over the individual components. Composite materials consist of a reinforcement and a matrix. Reinforcements provide strength and stiffness, while the matrix binds the reinforcements together and protects them. Common reinforcement materials include fibers of glass, carbon, and aramid. Matrix materials include polymers, metals, and ceramics. The documents describe different types of composites based on the matrix, such as polymer matrix composites, metal matrix composites, and ceramic matrix composites. Manufacturing methods for polymer matrix composites like hand lay-up, filament winding, and pultrusion are also summarized.
FIBER REINFORCED POLYMER CONCRETE
What is a Fiber?
Why are Fibres are used?
What is Fiber Reinforced Concrete (FRC)?
Steel fibers
Glass Fibers
Carbon Fiber
Cellulose Fiber
Polypropylene Fibers
Synthetic fibers
NATURAL FIBERS
Factors affecting the Properties of FRC
CLASSIFICATION OF POLYMERS.
PPT.pptx
The document summarizes an evaluation of the mechanical properties of metallic fiber, carbon fiber, and glass woven reinforced polymer composites. The study prepares composite laminates with different combinations of the fibers using hand layup and compression molding. Tensile, impact, flexural, and compression tests will be conducted on the specimens according to ASTM standards to determine the mechanical properties and characterize the hybrid composite material. Literature on natural fiber reinforced polymer composites and their mechanical properties is also reviewed to provide context and motivation for the study.
FLEXURAL PROPERTIES OF HYBRID FIBRE REINFORCED CONCRETE - A COMPARATIVE EXPER...
FLEXURAL PROPERTIES OF HYBRID FIBRE REINFORCED CONCRETE - A COMPARATIVE EXPER...Journal For Research
Fiber-reinforced concrete (FRC) is concrete containing fibrous material which increases its structural integrity. It contains short discrete fibers that are uniformly distributed and randomly oriented. The most important advantages are hindrance of macro-cracks’ development, delay in micro-cracks’ propagation to macroscopic level. In this project the flexural properties were studied for concrete prepared using different hybrid fibre combinations of glass fibres and polypropylene fibres. The volume fraction of the glass fibres and polypropylene fibres used in this study are 0.4% and 0.5% of total volume of concrete. The flexural properties were studied using centre point loading method on beam specimens. The objective of this study is to evaluate flexural strength of fibre reinforced concrete with respect to different combination of glass fibres and polypropylene fibres. It is observed that quantity of fibres both glass fibres and polypropylene fibres play significant role in increment flexural properties of concrete.
Study of hybrid composite beam using woven roving mat
The document summarizes a study on hybrid composite beams using woven roving mat. Four composite beams were tested: conventional beams, beams wrapped with glass fiber (WRM), beams wrapped with coir fiber, and sandwich beams wrapped with both glass and coir fiber (WRM). Testing found that the flexural strength was significantly improved for the wrapped beams compared to the conventional beams, with the sandwich beams showing the highest strength. The study aimed to spread awareness of fiber composites in construction and utilize cheaply available coir fiber.
a project on fibre-reinforced-concrete.
TYPES of fibre. history of fibre reinforced concrete(FRC). what is FRC. Uses. quantity, ratios, strengths, etc.
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Review Paper on Properties of Properties of Concrete using Steel Fiber Waste
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Steelfibre reinforced concrete and synthetic fibre reinforced concrete
- 1. STEEL - AND SYNTHETIC FIBRE REINFORCED CONCRETE Which fibre to be used for which application and why?
- 2. What can we learn from material properties?
- 3. CE regulation: two levels of attestation are defined
- 4. Macro Polymer fibres can NOT act as structural reinforcement of concrete THE YOUNG’S MODULUS IS INSUFFICIENT TO REINFORCE THE YOUNG’S MODULUS CREATES LARGE CRACK OPENINGS OR BIG DEFORMATIONS POLYMER FIBRES CREEP POLYMER FIBRES MELT AT 165 O
- 5. The Young’s Modulus is insufficient to reinforce
- 6. The Young’s Modulus creates large crack openings or big deformations
- 7. Polymer fibres creep Since 2004, different concrete labs have tested and evaluated the creep behavior of different fibre concrete materials.
- 8. Polymer fibres melt at 165 o Macro synthetic fibres: Loose their mechanical properties at 50 o C Dissapear at 160 o C
- 9. The right fibre for the right use