Polypropylene Fiber
control the microcracks resulting from ductile shrink of concrete,dry shrink and variations of of temperatu
Polypropylene Fiber for Cement-based Concrete
Polypropylene Fiber effectively control the microcracks resulting from ductile shrink of concrete,dry shrink and variations of temperature, prevent and constrain the from and development of cracks. As a new kind of reinforcement fibers for concrete,
the polypropylene fibers have becoming a focus on research and application of fibrous concrete science after glass fiber and steel fibers.
Properties of Polypropylene Fiber
Density g/cm3 : 0.91
Length(mm) : 12,15,17,19
Acid and Alkali resistance : strong
Tensile Strength (mps) : 400 min.
Melting Point (Deg.C) : 160--175
Function of Polypropylene Fiber Reinforced Concrete
Polypropylene Fibers have obvious advantages of its single fiber slim in length,large in amount after fully spread out in concrete,comparing with steel fibers,and they are characterized by their resistance to moisture and chemicals,and low in elastic modulus so made improvements in concrete performance in the following aspects:
Constrain cracks resulted in ductile shrink
Improve permeability
Improve abrasion resistance
Improve tensile strengthcapability of impact and fatigue
Prevent and stave off main structural bars from erosion
Replace other forms in controlling nonstructural cracks
Applications of Polypropylene Fibers
Concrete pavementsbridge decksAirport runways and Manufacturing
facilities
Tunnelwalls and top deck of mining tunnel
Riverway dam reservoir
Military infrastructures pier dock
Highway barrier walls Concrete edging