Dear All, Please find herewith Presentation of Repairs of PQC. This new technology will help you all to repairs PQC. Thanks with regards, Mangesh

1. Presentation on
Permanent Repair Solutions
of
Concrete Pavements
By
Mangesh Dhamele.
Choksey Chemicals P. Ltd.
Mumbai
Hand phone: 09322272943
Email: mangesh@chokseychem.com

2. Requirement Of The Product
For Repairs Of PQC & Expansion Joint
1. Flexible enough to accommodate anticipated expansion and contraction – Extreme
Climatic Conditions.
2. Ultra-violet Resistance – Does Not Become brittle with time.
3. Impermeable.
4. Excellent bonding with existing concrete and steel.
5. Resistance to Tear & Wear
6. Fast setting so that repaired patch / Exp. Joint can accept traffic within one hour.
7. High Impact & Fatigue Resistance.
8. Resistance to all type of fuels, Acid generated from the night soil.
9. Noise Reduction and smooth riding quality
10. Skid resistance, non-reflective finish, colour matching with concrete, Paintable also.
11. Economical – Long Term Maintenance Free Performance.

3. Delpatch - Elastomeric Concrete
Delpatch is polyurethane based
proprietary chemistry.
Compounded to develop high strength
and to promote easy bonding to both
concrete and steel for high performance
pavements.
Permanent repair solution
Fast Curring - Accept traffic in an hour
Self-leveling – Easy Workability.

4. Delpatch - Elastomeric Concrete
- Properties
Description Delpatch – Polyurethane Based Material
Resin System Polyurethane base
Main Composition Polyol – Aliphatic Isocyanides System
Aggregates High Strength Quartz Sand
Binders Polymeric Fibers for Reinforcement.

5. Delpatch - Elastomeric
Concrete - Properties
Sr. No. Property Method Typical Test Requirements
Result
1. Tensile Strength psi ASTM D 638 1950 750 Min
2. Elongation at Break % ASTM D 638 210 200 Min
3. Hardness ASTM 2240 41 30 – 49
4. Compression Set, % ASTM D 395 27 80 Max.
5. Resilience @ 5 88 70 Min
Deflection %
6. Impact Resistance, ft - lb 10 + 7 Min
7. Dry Adhesion to ASTM C 190 490 350 Min
Concrete, psi
8. Wet Adhesion to 280 250 Min
Concrete, psi
9. Oil Swell ASTM D 471 8 25 Max.
10 Water Absorbsion, % ASTM D 570 2.6 3 Max.
11. Tear Resistance, ASTM 1299 192 150 Min.
lb/inches
12. Heat Shrinkage ASTM D 1299 0.2 1.6 Max.

6. Delpatch - Elastomeric Concrete
Installation Method
Area Preparation
Priming Do not install Elastomeric
Concrete™ when any
Elastomeric Concrete
Mixing moisture is present or when
Elastomeric Concrete can
ambient temperatureslittle as
accept traffic in as are
Pouring below 45ºF (8ºC) the final pour
one hour after
when installed in normal
Accepting Traffic
working conditions
Weather Restrictions

7. Key Areas of Repairs
•Full depth cracks.
•Crazy cracks
•Edge Spalling
•Major and minor pot holes
•Patch resurfacing
•Nose wheel Area repairs
•Replacement of joints over night
•Airports, Highways/Expressways
•Spillways of Dams
•Under pass of bridges,
•Rail platforms
•Heavy industrial Floors.

8. Delpatch - Indian Job References
Sr. Project Client Contractor
No.
1 Jogeshwari Vikroli Link Road, Phase – I, Mumbai MMRDA NCC- Maytas – Mahaveer - JV
2 Jogeshwari Vikroli Link Road, Phase – II, MMRDA Unity Infrastructures Ltd., Mumbai
Mumbai
3 Mumbai – Pune Expressway MSRDC Ideal Road Builders Ltd.
4 NH-8 NHAI Larsen & Toubro Ltd.
5 Airport Authority Of India, Kolkata AAI AAI
6 Gun Carriage Factory, Jabalpur. Ordnance Factory, Ministry Of Defence Ordnance Factory, Jabalpur
7 BHEL- Bhopal BHEL Ami Enterprises, Mumbai
8 AAI – CSIA, Mumbai AAI Ami Enterprises, Mumbai
9 Jaipur International Airport, Jaipur. AAI – Jaipur Ami Enterprises, Mumbai
10 Udaipur – Chittorgarh Road Project NHAI Choksey Chemicals, Mumbai
11 Jaisalmer Airforce Air Base, Jaisalmer Garrison Engineer – MES – Jaisalmer Choksey Chemicals, Jaipur
12 Satara Kolhapur Road Project. MSRDC Choksey Chemicals, Mumbai / Valecha Engineering
Ltd.
13 Jaipur International Airport, Jaipur. – Repeat AAI – Jaipur Choksey Chemicals, Mumbai
Order
14 AAI – CSIA, Mumbai – Repeat Order AAI / TARMAT Ami Enterprises, Mumbai
15 Chittorgarh Bypass NHAI / HCC Ami Enterprises, Mumbai
16 AAI – CSIA, Mumbai MIAL Choksey Chemicals, Mumbai
17 Uttarlai Airforce Station Defence Airport / MES Vinayak Technico- Jaipur