Richlam500 Polypropylene Microfiber
Advanced Concrete Crack Control Solutions
Product Introduction
RICHLAM® 500 is a high-performance micro-synthetic polypropylene monofilament fiber engineered to provide three-dimensional reinforcement within the concrete matrix. Designed specifically for early-age concrete distress mitigation, it intercepts and controls plastic shrinkage and settlement cracking during the critical early stages of concrete hydration and development.
By uniformly dispersing fine polypropylene monofilaments throughout the fresh mix, RICHLAM® 500 enhances concrete cohesion, restricts microcrack propagation, and elevates structural integrity without altering the concrete's target aesthetic finish.
How RICHLAM® 500 Controls Micro-Cracking
Once introduced into the fresh concrete mixture, RICHLAM® 500 builds an interconnected, multidirectional 3D fiber reinforcement matrix. This dense network bridges microcracks as they develop due to moisture loss, distributing internal tensile stresses evenly across the concrete volume before early-age fissures can propagate into structural failures.
Performance Advantages & Engineering Benefits
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Plastic Shrinkage Crack Mitigation — Drastically reduces early-age plastic shrinkage, thermal, and settlement cracking.
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Three-Dimensional Reinforcement — Provides comprehensive micro-reinforcement through all planes of the concrete matrix.
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Enhanced Cohesion & Mix Integrity — Enhances uniform aggregate suspension, reducing bleed water channels and localized segregation.
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Non-Corrosive Longevity — 100% alkali-resistant polyolefin fibers that will not rust, stain, or degrade under harsh chemicals.
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Seamless Application Integration — Integrates seamlessly with existing mix design frameworks and utilizes standard field paving equipment.
Target Applications & Infrastructure Use Cases
Industrial Floors & High-Load Slabs
Ideal for logistical warehouses, commercial facilities, distribution centers, and massive industrial slabs requiring strict crack-width control.
Pavements, Infrastructure & Flatwork
Optimized for multi-lane roadways, airport aprons, parking plazas, sidewalks, driveways, and toll booths.
Precast Concrete Elements
Reduces chipping, cracking, and rejection rates during early-stage production, curing, demolding, handling, and transportation.
Shotcrete, Tunnels & Slope Stabilization
Provides superior rebound reduction and improved cohesion for tunnel linings, underground retention walls, and sprayed concrete repairs.
Mortars, Screeds & Renders
Boosts tensile capacity and cracking resistance in thin-bed cementitious repair mortars, industrial screeds, and external stucco.
Testing & Industry Compliance
RICHLAM® 500 is manufactured to meet rigorous international material standards:
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ASTM C1116 / C1116M — Standard Specification for Fiber-Reinforced Concrete.
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ASTM D7508 / D7508M — Standard Specification for Polyolefin Chopped Strands for Use in Concrete.
Recommended Dosage Rates
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Standard Engineering Dosage: 0.6 – 0.9 kg/m³ (Equivalent to 1.0 – 1.5 lb/yd³)
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Note: Optimum dosage should be validated against project requirements, aggregate matrix parameters, and local mix design criteria.
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