HPM® PP
polypropylene concrete fiber
Upgrade Your Concrete with HPM®-PP Microfibers
Since 2002, we have specialized in concrete crack resistance, waterproofing, and anti-corrosion technologies.
HPM® PP Monofilament Polypropylene Microfiber
Microfiber Reinforcement for Early-Age Crack Control
HPM® PP – Polypropylene Micro Fibers for Concrete
HPM® PP is a monofilament polypropylene microfiber designed to reduce plastic shrinkage and settlement cracking in concrete, mortar, and plaster. The fine fibers disperse throughout the mix to form a three-dimensional micro-reinforcement network while maintaining practical workability and surface finish. HPM® PP is suitable for slabs, pavements, precast concrete, mortar, plaster, and other applications where early-age crack control is required.
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Key Benefits of HPM® PP
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Plastic Shrinkage Crack Control
Helps reduce plastic shrinkage cracking during the early stages of concrete hardening.
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Settlement Crack Reduction
Distributed microfibers help control early settlement-related cracking around reinforcement and changes in section depth.
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Improved Cohesion
Fine fibers can improve mix cohesiveness and help reduce bleeding and segregation.
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Good Surface Finish
Monofilament fibers are designed to disperse uniformly while maintaining practical finishing characteristics.
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Non-Corrosive
Polypropylene fibers do not rust and do not introduce corrosion-related staining.
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Easy Batching
Fibers are added directly to the mix and dispersed during normal concrete or mortar production.
Technical Specifications
Explore the technical properties of PP fibers that ensure consistent reinforcement and workability in your concrete mix design.
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Material: 100% virgin polypropylene
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Fiber Type: Monofilament microfiber
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Specific Gravity: 0.91 g/cm³
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Diameter: 0.026 - 0.035 mm
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Lengths: 6 mm, 12 mm, 19 mm
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Tensile Strength: 350–630 MPa
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Modulus of Elasticity: 3000–5000 MPa
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Melt Point: 162°C (324°F)
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Chemical Resistance: Excellent alkali and acid resistance
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Color: White
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Standards: ASTM C1116, ASTM D7508, EN 14889-2
How HPM® PP Works in Concrete
During mixing, HPM® PP disperses into a large number of fine monofilament fibers throughout the cementitious matrix. This distributed fiber network helps interrupt early microcrack development and improves cohesion during the plastic stage. HPM® PP is primarily an early-age crack-control microfiber and should not be presented as a substitute for macro fibers where post-crack residual performance is required.
Our engineers are conducting quality checks
Fiber-reinforced concrete is being placed
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Recommended Dosage
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General concrete: 0.6–1.2 kg/m³
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Hot-weather slabs/pavements: 1.0–1.2 kg/m³
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Mortar/plaster/render: 0.3–0.6 kg/m³
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Shotcrete: 0.9–1.2 kg/m³。
Typical ranges shown for preliminary selection. Final dosage should follow the current TDS and project requirements.
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Mixing Instructions
Add HPM® PP directly to the concrete or mortar mixer using the recommended batching sequence. Allow sufficient mixing time after fiber addition to achieve uniform dispersion. Do not adjust the water–cement ratio solely because fibers are added; any workability adjustment should follow the approved mix design.
bullets
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Add directly to the mixer
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Distribute fibers gradually where practical
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Extend mixing time as recommended in the TDS
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Confirm dispersion before placement
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Follow normal placing and finishing practice
Recommended Applications
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Slabs, Floors and Pavements
For plastic shrinkage crack control in industrial floors, commercial slabs, residential slabs, pavements, driveways, and similar concrete applications.
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Precast Concrete
For precast production where early-age crack control, fiber dispersion, cohesion, and surface quality are important.
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Mortar, Plaster and Render
For cementitious mixes requiring fine distributed fibers to support crack control and cohesion.
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Shotcrete
For selected shotcrete applications where micro synthetic fiber crack-control or cohesion benefits are required.
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Overlays and Toppings
For thin concrete or mortar layers where early-age shrinkage and surface cracking require additional control.
Hong Kong-Zhuhai-Macao Bridge
.avif)
Da Nang Pier, Vietnam
Hangzhou Olympic Stadium
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Why Choose Us?
Proven Expertise & Greater Savings
24 years of focus
on fiber reinforcement solutions.
5,000 tons yearly
from advanced manufacturing.
20+ countries served
with global product distribution.
1,000 projects proven
in diverse applications worldwide.
FAQ
HPM® PP is a monofilament polypropylene microfiber used primarily for plastic shrinkage and early-age crack control in concrete, mortar, plaster and related cementitious applications.
Typical dosage depends on the application and mix. Refer to the current TDS for recommended ranges and confirm project-specific requirements before use.
HPM® PP is primarily a micro synthetic fiber for early-age crack control. It should not be treated as a substitute for macro fiber or structural reinforcement where post-crack residual performance is required.
HPM® PP is a monofilament microfiber, while HPM® PP Mesh is a fibrillated fiber that opens into a network-like structure during mixing. Their geometry and application focus differ.
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Why Choose PIONEER® Technologies
Tested, Proven, and Engineered for Concrete Crack Control and Durability
Partner with a trusted leader in concrete crack control, fiber reinforcement, and crystalline waterproofing solutions for modern infrastructure and high-performance concrete systems.
1. Independently Tested and Certified
Validated through independent laboratory testing and compliant with ASTM standards and CE certification, PIONEER® technologies deliver reliable performance in fiber reinforced concrete and crystalline waterproofing applications.
2. Proven in Real Projects Worldwide
With applications in over 1,000 projects across 20+ countries, our systems have been used in major infrastructure such as the Hong Kong–Zhuhai–Macao Bridge, Bangladesh Subsea Tunnel, and metro systems, demonstrating consistent performance in demanding environments.
3. Integrated Reinforcement and Waterproofing Solutions
We provide advanced systems including macro synthetic fibers, micro fiber reinforcement, and crystalline waterproofing, supporting applications in industrial floors, precast concrete, ready-mix, and infrastructure projects.
4. Direct Manufacturer with Engineering Support
We offer dosage design, mix optimization, and on-site technical support, backed by over 24 years of experience, ensuring efficient implementation and consistent performance across large-scale construction projects.
26,500m² production base
Advanced fiber dispersibility
Exceptional tensile strength
