Experimental Study on Axial Tensile Performance of Polypropylene Fiber Reinforced Concrete: Excellent Contribution of PP Fiber
Views : 101
Update time : 2024-01-10 10:51:04
As the fiber content increases, the tensile strength of concrete first increases and then decreases. The influence of polypropylene fiber content and curing age on the tensile properties of concrete was studied, and the optimal polypropylene fiber content was determined. When the fiber content is 0.9 kg/m3, the tensile strength of concrete attains its maximum value. Simultaneously, split tensile tests on concrete were conducted under the same conditions. The damage phenomenon and checkout results of the concrete axial tensile and splitting tensile tests were compared and analyzed, and the applicability of the newly developed device in the concrete axial tensile test was verified.
PP fiber, or polypropylene fiber, is a synthetic fiber made from polypropylene. Polypropylene is a non-polar polymer with excellent electrical insulation performance and chemical corrosion resistance.
The characteristics of PP fibers:
1. Lightweight: PP fiber is lightweight and superior to cotton in quality. 2. Low moisture absorption rate: The moisture absorption rate of PP fiber is almost zero, and it has good hydrophobic and moisture conductivity performance. 3. High wear resistance and strength: PP fibers have high wear resistance and strength. 4. Good corrosion resistance: PP fibers resist weak acids and bases and have good corrosion resistance to most organic solvents. 5. Good stability: PP fibers have good stability, so solvents in agricultural production systems are easy to clean when sticking to clothes. 6. Excellent mechanical properties: PP fibers have high strength and elastic modulus, which is beneficial for the mechanical properties of concrete. 7. Good electrical insulation: Polypropylene is a non-polar polymer with excellent performance. 8. Good heat resistance: Polypropylene has good heat resistance and can be used above 100 ℃, which is especially suitable for preparing medical high-pressure disinfection products. 9. Strong chemical corrosion resistance: It is insoluble in any solvent at room temperature but can swell in certain solvents. Can withstand corrosion from acids, bases, salts, and most organic solvents (such as alcohols, phenols, aldehydes, ketones, and most carboxylic acids) except for strong oxidants, concentrated sulfuric acid, and concentrated nitric acid.
Application of PP fiber:
1. Building materials: Adding PP fibers to concrete can enhance fracture strength impact resistance, and prolong service life. 2. Agricultural field: Due to the good stability of PP fibers, solvents in agricultural production systems are easy to clean when sticking to clothes. 3. Textile field: PP fiber has characteristics such as lightweight, warmth retention, and hydrophobicity, which can be applied in textiles to improve their performance. 4. Medical field: Due to its excellent heat resistance and electrical insulation, PP fiber can manufacture medical products, such as medical dressings, bandages, etc. 5. Automotive industry: PP fiber can enhance automotive components' wear resistance and strength. 6. Electronics industry: PP fiber can be applied to manufacture electronic product shells due to its excellent electrical insulation performance and chemical corrosion resistance. 7. Environmental protection field: Filter materials prepared using PP fibers can be widely used in sewage treatment. At the same time, PP fibers can also be added as enhancers to the soil to improve its strength and wind erosion resistance.
High-quality PP fiber
TRUNNANO is a globally recognized compound manufacturer and supplier with over 12 years of expertise in the highest quality nanomaterials and other chemicals. The company develops various powder materials and chemicals. Provide OEM services. If you need PP fiber, please feel free to contact us anytime. You can click on the fabric to contact us.
