MiChem Chemical

Twisted Concrete Fiber | ASTM/CE Certified for Global Construction Projects

China's leading manufacturer of reinforced polypropylene fibers, offering comprehensive fiber solutions.

Best Selling Twisted Macro Synthetic Fiber From China

A long-established Synthetic fiber factory from Tai'an, China

Welcome to Michem Chemical Fibers Co., Ltd.—a leading manufacturer and exporter of concrete fibers with 12 years of expertise in serving 50+ countries, including the EU, USA, and Southeast Asia. We specialize in high-performance twisted fiber engineered to solve concrete cracking and durability challenges for landmark projects like the German Autobahn expansion and Singapore MRT tunnel.

Our twisted fiber is backed by ISO 9001, CE, and ASTM C1116 certifications, and our R&D team works closely with international architects to tailor solutions that meet local building codes. In this page, we’ll break down why our twisted fiber is the top choice for global construction contractors.

What is Twisted Concrete Fiber?

Twisted concrete fiber (also called twisted PP fiber) is a specialized reinforcement material made from 100% virgin polypropylene. Unlike straight fibers, its unique helical twisted shape creates a mechanical interlock with the concrete matrix, drastically improving bond strength, dispersion, and anti-cracking performance.

As noted in the American Concrete Institute (ACI) 544.1R-17 Guide, twisted fibers are 3x more effective at controlling plastic shrinkage cracking than standard straight fibers—making them ideal for high-stress projects like precast components, tunnels, and industrial floors.

Product Specifications

Michem is committed to continuous innovation and providing high-quality twisted fiber solutions for concrete. The following is a summary of product details:

Fiber Type	Twisted, Macro-Synthetic Fiber
Brand	TenaBrix®
Raw Material	Polypropylene/polyethylene
Color	Gray
Length	38mm, 48mm, 50mm,54mm
Tensile Strength	≥480MPa
Elastic Modulus	≥4000 MPa
Specific Gravity	0.91/ cm3
Alkali, Salt, and Acid Resistance	Excellent
Melting Point	160 °C
Water Absorption	Nil
Electrical/Thermal Conductivity	Low

Why Choose Michem’s Twisted Fiber

By choosing the right fiber, you can optimize crack resistance, toughness, and durability across a wide range of concrete projects.

Proven Performance with Third-Party Data

Our twisted fiber undergoes rigorous testing at the China Building Materials Academy and independent labs in Germany. Key results:

International Certifications for Global Projects

All our twisted fiber products meet strict global standards:

This means you can use our twisted fiber in projects across North America, Europe, and Oceania without code compliance issues.

Tailored Solutions for Export Clients

We understand that global projects have unique needs. Our team offers:

Top 4 Application of Macro Fiber

With outstanding performance and cost-effectiveness, Polypropylene Fiber is widely recognized as a reliable solution for concrete reinforcement and mortar crack control in construction industries worldwide.

Road Pavements

Highways and runways (extends service life by 30% vs. un reinforced concrete)

Precast Concrete Components

Walls, beams, and panels (prevents cracking during transportation/installation)

Industrial Flooring

Warehouse, factory, and airport floors (reduces impact and shrinkage cracking)

Tunnel & Bridge Construction

Reinforces shotcrete and cast-in-place concrete for dynamic load resistance

✅ Comprehensive TDS & Brochure – Get in-depth technical details about our HPMC.

✅ Free Sample (200g or 400g per bag) – Test our high-quality fiber in your formulations.

✅ Fast & Reliable Delivery – Shipped via FedEx or DHL straight to your door.

✅ Expert Support – Assistance with formula adjustments and technical guidance.

✅ ASTM C1116-03

✅ ASTM D7508

✅ EN 14889-2

Twisted Fiber vs. Straight Fiber: A Comparative Analysis

Feature	Michem Twisted Fiber	Standard Straight Fiber
Concrete Bond Strength	40% higher (mechanical interlock)	Low (surface friction only)
Dispersion Uniformity	99% (no clumping)	75% (prone to balling)
Anti-Cracking Performance	Reduces cracking by 65%	Reduces cracking by 30%
Mixing Ease	Smooth, no extra time needed	Requires 2x longer mixing

Global Customer Success Stories

“Michem’s twisted fiber was critical to meeting Germany’s strict construction standards. The fiber’s uniform dispersion reduced post-construction maintenance costs by 30% in the first year. We’ll be renewing our contract for 2025.”

“We chose McKem’s twisted fiber for its ASTM certification and technical support. It effectively controlled shrinkage cracking in shotcrete, ensuring the tunnel’s 100-year structural integrity.”

we are vertically integrated manufacturer

15+ years dedicated to cellulose ether R&D (not a newcomer)
Holding over 20 affiliated chemical enterprises, with self-controlled raw material costs
5,000 tons/year production capacity, ISO 9001:2015 full-process quality control
From cotton pulp to finished bags, every step requires QC approval.

As a professional polypropylene fiber manufacturer, we operate a modernized production facility specializing in PP fibers for concrete.

Macro Fiber Factory

The factory is located in Taian, Shandong Province, with an annual production capacity of 20,000 tons.

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General FAQs

Frequently Asked Questions Questions

What is twisted concrete fiber used for?

Twisted concrete fiber is used to reinforce concrete structures, reducing plastic and drying shrinkage cracking, improving impact resistance, and extending service life. It’s ideal for precast components, tunnels, industrial floors, and road pavements.

Is Michem’s twisted fiber compliant with international standards?

Yes. Our twisted fiber meets ASTM C1116 (USA), EN 14889-2 (EU), and ISO 9001:2015 standards, making it suitable for global construction projects.

Can I get a free sample of twisted fiber?

Absolutely! We offer free 500g samples to qualified global clients. Contact us to request a sample and get technical data sheets included.

How does twisted fiber improve concrete durability?

The helical twisted shape creates a mechanical interlock with the concrete matrix, preventing crack propagation. Uniform dispersion ensures every part of the concrete is reinforced, reducing structural damage over time.

How to dissolve Hydroxyethyl Cellulose in water?

Proper dissolution is critical for HEC performance:

Dispersion: Add HEC slowly to vortex of agitated water (not vice versa)
Particle Size: Use fine mesh grades (80-100 mesh) for faster dissolution
Temperature: Start with cold water (15-25°C); heat after hydration
pH Adjustment: Add acids/bases only after full hydration
Time: Allow 20-30 minutes for complete hydration

Pro Tip: Pre-dispersing in glycerol or alcohol prevents lumping in high-shear systems.

What is Hydroxyethyl Cellulose price per kg?

Hydroxyethyl Cellulose pricing depends on:

Viscosity grade: Higher viscosity = higher price
Purity level: Industrial vs. cosmetic vs. pharmaceutical grade
Order volume: Bulk orders (FCL) receive significant discounts
Customization: Special particle sizes or packaging

Price Range (2024):

Industrial Grade: $3.50-5.50/kg
Cosmetic Grade: $5.50-8.00/kg
Pharmaceutical Grade: $8.00-15.00/kg

Let the next batch of macrofiber be the raw material you least need to worry about.

Technical Consultation

Submit your formulation system to receive customized selection recommendations.

Sample Request

Samples shipped within 48 hours, accompanied by batch stability comparison reports.

Production Capacity Lock-in

Annual framework agreements enjoy priority scheduling + tiered pricing.

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