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FORTA-FI

Flexible Pavement performance enhancement

A GREEN PRODUCT AND COST-EFFECTIVE INNOVATIVE SOLUTION

- Background

Wearing course – direct contact with traffic load, subject to highest magnitude of stress, possibility of wear & tear

Use of fibers:

reduces the drain down of binder and reduces susceptibility to deterioration in high temperatur
Provides a high tensile strength 3D reinforcement system for new construction and rehabilitation projects
help hold the asphalt mix together to make it stronger and last longer
A proven and tested in the US and many other Countries. [Malaysia]
Can be used in Expressways, highways, urban & rural roads

PHYSICAL PROPERTIES

Properties	Aramid	Polyolefin
Specific Gravity:	1.44	0.91
Density:	1,440 kg/cm3	910 kg/cm3
Tensile Strength:	2,758 MPa	-
Operating Temperature:	-73 to 427 °C	-
Length:	19 mm	19 mm
Form:	Monofilament	Serrated
Acid/Alkali Resistance:	Inert	Inert

Ability to withstand HMA conditions

Aramid fiber("Kevlar") - the new "reinforcing agent" in the mix.
Polyofelin fiber - melts and acts as a chemical enhancement for the bitumen and a dispering agent for aramid fibers.

FORTA-FI®

Benefits of FORTA-FI® in Asphalt Roads

Offer Better Roads Free of Potholes

Extend life of Asphalt by 50% or more.

Reduce Maintenance Costs

Withstand the Harshest Weather Conditions.

Resist Cracking & Rutting and gives a Stronger Lasting Roads.

Forta-fi® is a recyclable product.

FORTA® fied asphalt is much stronger than the traditional mixture.

How does Fiber reinforcement Work

During the mixing phase, the aramid and polyolefin fibers are introduced into the asphalt plant to make a homogeneous mix of reinforced asphalt. The polyolefin fibers will melt out completely due to the asphalt mixing temperatures.

The aramid fibers will grab on to the aggregates in the mix while also being coated with liquid asphalt binder. The binder holds the fibers in place in the mix.

Dosage: 500g for one metric ton of asphalt mix.

Benefits of Fibers in Asphalt Roads

+
Resist Cracking & Rutting and gives a Stronger Lasting Roads.
+
Extend life of Asphalt by 50% or more.
+
Reduce Maintenance Costs
+
Offer Better Roads Free of Potholes
+
Asphalt is much stronger than the traditional mixture.
+
Capable of reinforcing all asphalt mixtures.
+
Withstand the Harshest Weather Conditions [Malaysia]
+
Designed for Hot Mix and Warm Mix.
+
A recyclable product.

FORTA-FI® SLAB LIFT TEST

If a road has been made with the fibers and if you need to access utilities underneath, you will need to saw cut and remove the asphalt. Then once the work is done on the utilities, you can just patch that spot with asphalt.
This typical example in Boeing Airways in the United States used asphalt with FORTA FI and had a water line break underneath the pavement.
In this video, they saw cut the section for access, installed a lag bolt to remove the section, and then placed the section back when done.

Fibers impact on asphalt mix

Fibers impact on asphalt mix
- Binder / binder content
- Aggregate grading
- Follow standard specification
No change to mix process or modification to asphalt plant – simple addition – mixes well and uniformly in both batch and drum mixer type plants
No change to process at site (paving) – standard placement and compaction practise

Case study 1 Malaysia

3-year life cycle cost analysis
Similar climate challenge – heat, humidity, rainfall
Road typically required overlay 2 to 3 times annually
Subject to flash floods with inferior drainage
For analysis the trial was done:
- Length – 864 m
- Width – 3.70 m
- Thickness – 50mm
- Mix – standard AC14 wearing course mix (Malaysia PWD)

Results – Malaysia Case 1 Study

Initial cost – 40% higher with Fibers
Standard wearing course replaced in same year - 2017, once in 2018, twice in 2019 and again in 2020
Fiber mix still strong (picture) after the 3 years = > 5 x life

Case study 1 Malaysia

7-year life cycle cost analysis – WC only
Comparison SFM (middle & slower lane) with conventional WC (ramp) and with SMA (fast lane)
Length – 100 m
Width – 3.75 m
Thickness – 50mm
Cost of milling & tack coat same for all

Results – Malaysia Case 2 Study

Conventional WC required 3 times mill & pave and 4 times of patching
SMA required 1 time more mill & pave (36% saving compared to standard)
Fiber mix – no maintenance required (~70% total cost saved against conventional

Benefit cost analysis – Malaysia [Nov 2021]

Badly damaged / dangerous intersection requiring emergency repair
Decision to mill & pave to 110mm – using Fibers in binder course and wearing course
Based on cost benefit analysis

Benefit cost analysis rubicon

Calculation used indicated a >7 times benefit for a 36% increase in initial cost
Using Fibers in both wearing & binder cost

FORTA-FI

Flexible Pavement performance enhancement

- Background

PHYSICAL PROPERTIES

Ability to withstand HMA conditions

Benefits of FORTA-FI® in Asphalt Roads

Offer Better Roads Free of Potholes

Extend life of Asphalt by 50% or more.

Reduce Maintenance Costs

Withstand the Harshest Weather Conditions.

Resist Cracking & Rutting and gives a Stronger Lasting Roads.

Forta-fi® is a recyclable product.

FORTA® fied asphalt is much stronger than the traditional mixture.

How does Fiber reinforcement Work

Benefits of Fibers in Asphalt Roads

FORTA-FI® SLAB LIFT TEST

Fibers impact on asphalt mix

Case study 1 Malaysia

Results – Malaysia Case 1 Study

Case study 1 Malaysia

Results – Malaysia Case 2 Study

Benefit cost analysis – Malaysia [Nov 2021]

Benefit cost analysis rubicon

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