"Control the standard by the details, show the energy by quality". Our business has strived to establish a really efficient and stable personnel team and explored an effective high quality manage process for Micro synthetic PP fibers for Shotcrete, We welcome new and old customers from all walks of life to contact us for future business relationships and achieve mutual success! "Control the standard by the details, show the energy by quality". Our business has strived to establish a really efficient and stable personnel team and explored an effective high quality manage process for China Carbon Steel Copper Plated Micro Steel Fiber and Copper Plated Micro Steel Fiber, Our aim is to help customers to make more profits and realize their goals. Through a lot of hard work, we establish a long-term business relationship with so many customers all around the world, and achieve win-win success. We will continue to do our best effort to service and satisfy you! Sincerely welcome you to join us! Polypropylene fiber (PPF) is a kind of polymer material with light weight, high strength, and corrosion resistance. The crack resistance of concrete can be improved by adding polypropylene fibers. PPF can optimize the pore size distribution of concrete. As a result, the durability of concrete is significantly enhanced since PPF can block the penetration of water or harmful ions in concrete. Different fibre content, fibre diameter, and fibre hybrid ratio will have different effects on the durability indexes. The durability property of concrete can be further improved by combining PPFs and steel fibres. The drawbacks of PPF in application in concrete are the imperfect dispersion in concrete and weak bonding with cement matrix. The methods to overcome these drawbacks are to use fibre modified with nanoactive powder or chemical treatment. The anti-cracking fiber is a high-strength bundled monofilament organic fiber that uses fiber-grade polypropylene as the raw material and is processed by a special process. It has inherent strong acid resistance, strong alkali resistance, weak thermal conductivity, and extremely stable chemical properties. Adding mortar or concrete can effectively control the micro-cracks caused by temperature changes in the initial plastic shrinkage stage of mortar and concrete, prevent and inhibit the formation and development of cracks, and greatly improve the concrete's crack resistance, impermeability, impact resistance and Earthquake resistance can be widely used in underground engineering waterproofing, roofs, walls, floors, pools, basements, roads and bridges in industrial and civil construction projects. It is a new ideal material for mortar and concrete engineering with anti-cracking, anti-seepage and abrasion resistance. Physical parameters: Fiber Type: Bundle Monofilament / Density: 0.91g/cm3 Equivalent diameter: 18～48 μm / length: 3, 6, 9, 12, 15, 54mm, it can be cut arbitrarily according to user requirements. Tensile strength: ≥500MPa / modulus of elasticity: ≥3850MPa Elongation at break: 10～28% / Acid and alkali resistance: extremely high Melting point: 160～180℃ / Ignition point: 580℃ Main Functions: As a secondary reinforcement material for concrete, polypropylene fiber can greatly improve its crack resistance, impermeability, impact resistance, earthquake resistance, frost resistance, erosion resistance, burst resistance, aging resistance and workability, pumpability, and water retention. sex. ● Prevent the generation of concrete cracks ● Improve the anti-permeability of concrete ● Improve the freeze-thaw resistance of concrete ● Improve the impact resistance, flexural resistance, fatigue resistance and seismic performance of concrete ● Improve the durability and aging resistance of concrete ● Improve the fire resistance of concrete Application Areas: Concrete rigid self-waterproof structure: Basement floor, side wall, roof, roof cast-in-place slab, reservoir, etc. Engineering, water conservancy projects, subways, airport runways, port terminals, overpass viaduct decks, piers, super-long structures with high requirements for crack resistance, impact resistance, and wear resistance. Cement Mortar: Internal (external) wall painting, aerated concrete plastering, interior decoration putty and thermal insulation mortar. Anti-explosion and fire-resistant engineering: Civil air defense military projects, oil platforms, chimneys, refractory materials, etc. Shotcrete: Tunnel, culvert lining, thin-walled structure, slope reinforcement, etc. Instructions for use Suggested dosage: The recommended amount of mortar per square of ordinary plastering mortar is 0.9～1.2kg The recommended amount of thermal insulation mortar per ton: 1～3kg The recommended amount of concrete per cubic meter of concrete is: 0.6～1.8kg (for reference) Construction technology and steps ①According to the volume of concrete mixed each time, the weight of the fiber added each time is accurately measured according to the requirements of the mix ratio (or the recommended mixing amount). ② After preparing the sand and gravel, add the fiber. It is recommended to use a forced mixer. Add the aggregate together with the fiber into the mixer, but pay attention to ensure that the fiber is added between the aggregate and mix it dry for about 30 seconds. After adding water, mix it wet for about 30 seconds to fully disperse the fiber. ③ Take samples immediately after mixing. If the fibers have been evenly dispersed into monofilaments, the concrete can be put into use. If there are still bundled fibers, extend the mixing time by 20-30 seconds before use. ④ The construction and maintenance process of fiber-added concrete is exactly the same as that of ordinary concrete. Ready to use. Micro polypropylene (PP) fibers are commonly used as a reinforcement material in shotcrete applications. Shotcrete, also known as sprayed concrete, is a method of applying concrete using a high-velocity pneumatic spray nozzle. The addition of micro PP fibers to shotcrete offers several advantages: Crack Control: Micro PP fibers help control the development of cracks in shotcrete applications. They act as a secondary reinforcement, providing additional support and reducing the potential for cracks to propagate. Improved Durability: The inclusion of micro PP fibers enhances the durability of shotcrete by increasing its resistance to cracking, particularly in harsh environmental conditions or when exposed to freeze-thaw cycles. Enhanced Impact Resistance: Micro PP fibers contribute to the impact resistance of shotcrete, making it more robust and better able to withstand forces such as impact or abrasion. This is valuable in applications like tunnel linings or retaining walls. Reduced Plastic Shrinkage Cracking: In the early stages of curing, shotcrete may be susceptible to plastic shrinkage cracking. Micro PP fibers help mitigate this issue by reducing the likelihood and extent of such cracks. Increased Toughness: The addition of micro PP fibers improves the toughness of the shotcrete, making it more ductile and resistant to dynamic loading. This is particularly important in applications where the shotcrete may be subject to structural movement or seismic forces. Corrosion Resistance: Micro PP fibers do not corrode, providing long-term durability and resistance to degradation in aggressive environments. This is in contrast to steel reinforcement, which can corrode over time. Improved Shotcrete Workability: The use of micro PP fibers can enhance the workability of shotcrete, making it easier to handle and spray. This is important for achieving a uniform application and desired finish. When incorporating micro PP fibers into shotcrete mixes, it's crucial to follow proper mix design guidelines. The fiber content, length, and distribution within the shotcrete mix should be carefully considered to achieve the desired performance characteristics. Quality control measures and testing should be implemented to ensure that the shotcrete meets project specifications and relevant industry standards. As with any concrete additive, consulting with a shotcrete specialist or structural engineer is advisable to ensure that the chosen micro PP fiber reinforcement aligns with the performance and safety requirements of the specific shotcrete application. Additionally, local building codes and standards should be taken into consideration. Our aim is to help customers to make more profits and realize their goals. Through a lot of hard work, we establish a long-term business relationship with so many customers all around the world and achieve win-win success. We will continue to do our best effort to service and satisfy you! Sincerely welcome you to join us! www.kehuitrading.com sales1@kehuitrade.com