Todd Donmyer P.E.

Area Engineer District 61

Polymer Concrete Patching Materials

LADOTD – Todd Donmyer Area Engineer District 61

CRAFCO – Cheryl Jones

Marketing Associates– Chris Carwie

Title Here

TechCrete

Presented by

Cheryl Jones

TechCrete History

What is TechCrete?

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TechCrete is the most advanced

flexible concrete solution for highway

and airport pavement rehabilitation!

TechCrete Composition

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Binder- Polymer-modified resin and oils

to better resist shoving and cracking.

Aggregate – designed to provide mass and stability for

compression resistance and to meet load bearing

requirements, while still allowing the material to flow.

TechCrete Products

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TechCrete R

TechCrete R contains finer aggregate and is used for repairs up to ¾ inch (20mm) deep.

TechCrete TBR

TechCrete TBR contains larger aggregate particles and is used for repairs from ¾ inch to

8 inches (20 to 200mm) deep. This is the most frequently used TechCrete product.

TechCrete Attributes w/Video

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• Pre-blended mix

• Produces no compressive or

tensile stress on the surrounding

pavement

• Flowable/Pourable

• Aggregate Filled/Extendable

• Load Bearing Resistance

• Flexible

• Excellent Adhesion

• Voidless

• Waterproof

Where to Use TechCrete

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TechCrete products provide solutions for concrete distresses that include

but are not limited to:

• Wide Cracks

• Longitudinal Cracks

• Transverse Cracks

• D Cracking

• Corner Slab Breaks

• Pavement Blow-ups

• Joint Failures

• Spalls

• Potholes

• Pop-outs

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Repair wide cracks

TechCrete Applications

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D cracking (due to freeze/thaw)

TechCrete Applications

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Joint Failures

TechCrete Applications

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Multi-Corner Slab Repair Corner Breaks

TechCrete Applications

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Spalls & Pop-outs

TechCrete Applications

Benefits of TechCrete

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Benefits of TechCrete

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• TechCrete is easily installed and can be opened to traffic within an

hour

• TechCrete waterproofs PCC pavement and is chemical-resistant

Installation - Equipment

Use only an indirectly-heated Patcher

with sufficient agitation.

Mark the perimeter of the areas to be repaired

Installation - Preparation

Remove the defective pavement

Clean and dry the repair area with a hot air lance.

Installation - Preparation

Ensure the pavement temperature exceeds

40F (4C) during application

Installation - Preparation

Prime the entire repair area Install TechCrete

375° F-400° F

2” lifts if depth is greater

than 2 ½”.

TechCrete Video

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Click below to view TechCrete Video

TechCrete Installation - Application

Smooth product to the desired level

Apply surface aggregate

FIBRECRETE

…the only proven durable patch

FIBRECRETE provides an impervious, color-matched hard-wearing finish. The finished patch has good tensile strength, flexibility, and resists compression and wheel tracking.

FIBRECRETE is designed to replace traditional

cementitious repairs which are prone to failure due to

their stiffness.

FIBRECRETE B and G

FIBRECRETE B (black) is a hot-applied polymer modified asphalt base material containing mineral fillers, chopped fibers, sand and graded granite aggregates. FIBRECRETE B is supplied in 50 lbs blocks.

…the only proven durable patch

FIBRECRETE G (grey) is a hot-applied synthetic polymer modified resin compound. The grey formulation performs equal to FIBRECRETE B, and meets or exceeds the same performance specifications. Fibrecrete “G” is a supplied in 50 lb melt bags.

ASTM D 5329

Bond

Mandrel

Resilience

Purpose-Built Equipment

FIBRECRETE solution…

Deep Repair Method The defective area is removed to the required width and depth and where necessary the existing joint sealing compound is removed. Loose material and debris is mechanically swept and removed from the site. The area is thoroughly cleaned with controlled use of hot compressed air. Where the repair depth is greater than 2”, hot applied Fibrecrete material is bulked out with larger aggregate. The remaining recess is then filled with Fibrecrete compound to finish flush with the pavement surface. While Fibrecrete is still molten a dressing of pre-heated high PSV aggregate is applied.

Fast installation minimizes costly traffic management and aircraft movement disruption.

The finished repair can withstand very high traffic loading within minutes of application.

The repair is totally impervious to water and salts thus arresting further deterioration.

IH 26 – ‘97

Step #1 - Sawcutting

Step #1 - Sawcutting

Step #2 - Cleaning

Step 3 # Priming Recess

…the only proven durable patch

Step #4 – Placing Material

Step 5 – Applying Bulking Stone

Step 6 –Screeding and Applying

Topping Stone

Fibrecrete LA Project

History

2007/2008 - Demo on LA 1

2009/10 – LA 1 Project

2010 – I-12 East Baton Rouge

2011 – I-12 East Baton Rouge

2012 – I-10 Gonzales

2014 – Jefferson Highway (BR)

2015 – I-12 West Baton Rouge

2015 – I-49 Natchitoches

Fibrecrete LA

Project

Examples

LA 1 Port Allen, LA

I-12 Baton Rouge, LA

Jefferson Highway, Baton Rouge, LA

Project Pictures LA I-10, Exit 139 LA 1 Port Allen, LA Demo

Todd Donmyer P.E.

Area Engineer District 61

I-12 East Baton Rouge Parish

August 2011

I-12 East Baton Rouge Parish

August 2011

I-12 East Baton Rouge Parish

February 2016

Essen Lane – East Baton Rouge Parish

Essen Lane – East Baton Rouge Parish

Essen Lane – East Baton Rouge Parish

Any Questions?