APPLICATION OF ZYCOSIL FOR

WATER PROOFING

PRESENTED BY-: ANSHUL OJHA ID No. 40325

• Zycosil is the only water soluble product in the world that is used for waterproofing of masonry building materials.

• A new generation of nano technology developed for water proofing and has :

Thermal resistance

UV resistance

An ability to withstand wind erosion due to its nano size

Penetrative power.

Introduction

• A Water Soluble, Penetrating, Water Repellent for use on Cementitious Materials such as Brick, Concrete, Stone, Tile, Grout, Mortar and Plaster.

• Provides 20 plus year protection

• Eco Friendly and easy to use

• Better value compared to alternative technologies

• Sold in concentrated form / just add water and apply

• International Patents Issued 2009

Water- The great destroyer

Moisture damage caused by a loss of adhesion , commonly referred to as “stripping” of aggregates.

It results in both structural as well as aesthetic damages

AESTHETIC DAMAGES (both internal & external) such as:

Efflorescence

Formations of blisters (surface peel off)

Corrosion

Fungus formation

STRUCTURAL DAMAGE DUE TO WATER SEEPAGE:

Freezing/ thawing.

Carbonation/ acid rain

ASR ( alkaline silica reaction)

DAMAGES TO PAVEMENT SURFACES:

Stripping of aggregates.

Heavy traffic on a moisture-weakened pavement can result in premature rutting or fatigue cracking .

presence of moisture can accelerate the formation of potholes.

Aesthetic Damage

I) Internally

- Efflorescence

- Paint Peel Off/ Blisters

II) Externally

- Fungus

- Mold (Mildew)

- Dirt Pick Up

Structural Damage From Water Seepage• Alkaline Silica Reaction (ASR) - occurs when water enters the highly alkaline environment of concrete. The result is the formation of a gel that expands creating force that subsequently creates cracks in concrete

• Freeze & Thaw – the expansion of water in concrete during freeze cycle creates force and the contraction during thaw creates voids. The results are cracked concrete

• Carbonation - carbon dioxide in the ambient air penetrates the concrete and reacts with hydroxides in cement. The reaction changes the ph within concrete. High ph corrodes steel reinforcement in concrete

• Sulphate Attack – Degredation of portland cement due to the exposure of sulphate salts that are present in soils, groundwater, and fertilizers, etc.

Structural Damage From Water Seepage

Corrosion, Alkaline Silica Reaction, Freezing & Thawing, Premature Aging, Carbonation, Sulphate Attack

The presence of water is the common component in all of these processes.

Failures of Existing Waterproofing

Short Life Span

Abrasion

UV Breakdown

High Cost

Difficult Application

Toxic Chemicals – High VOC Content

Flammability

Film Former Products

Solvent/ Silane Products

Substrate pore size5 - 2000 nm

Salt/ Acid rain

~ 1 - 2 nm

Rain Water Seeps into a buildingThrough Pores & Micro-cracks

How Water Enters a Building

How Water Enters a Building

Rain Fall (Roof Top)

Condensation in Capillary(Due to wide temperature Fluctuations & High relative humidity)

Structural Defects (Micro Cracks)

Capillary Action (Ground Water)

How Water Penetrates DeBonded Joints

Tile, Brick or Concrete Block

Micro cracks allow water to pass through

Mortar joint Rain

Failures of Existing Waterproofing Products “Film Formers”

• Blocks Breathability• Life of Only 2-5 Years

Pores channels

PoresUV and Abrasion

Destruction of the Film coating

Water repellant Film coating

ZYCOSIL NANOTECHNOLOGY

• Any technology based on particles size less than 10 ηm is considered Nano Technology.• Zycosil molecule when dissolved in solvent has estimated size of 3-6 ηm.• Most pavement materials contain hydroxyl (OH) groups. These OH groups can chemically react with alkoxy groups of Silane to form permanent, mother nature’s strongest siloxane bonds.

• These types of products impart water repellency by modifying surface characteristics from hydrophilic to hydrophobic.• Permanent water repellent layer on all types of soils, aggregates and other inorganic road construction materials.• The technology addresses the critical subsurface drainage problems in road making and repairs.• Zycosil’s reactive bonding ability with the aggregates and asphalt helps to eliminate stripping of aggregates t a great extent.

Uniqueness of Zycosil

Typical Concrete

Concrete Pore

OtherPenetrants Blended

Coatings

SiliconeResins

AcrylicResins

EpoxyResins

Nanometerscale 0 5 50 100 500 700 1000

Zycosil

Property Film Formers Zycosil

Size (nm) 100-500 4-6

Water repellency Mechanism

By coating and closing pore of the substrate

By Nano level Hydrophobation

Diluents Hydrocarbon/ Water Water

10 Years Simulated Abrasion Test

Loses 90% protection

Loses only 2%protection

UV Stability Not Stable Stable

Breathability Not breathable Breathable

Depth of Penetration (mm) < 0.2 mm > 3 mm

Fungus / Mildew Protection Limited Protection Excellent Protection

Corrosion Protection Limited Protection Long Term Protection

Micro-cracks Protection Not protected Protected

Durability < 5 Years 20+ Years

Comparative Performance

Property Solvent Based Penetrant

Zycosil

Size (nm) 3-4 4-6

Water repellency Mechanism

By Nano level Hydrophobation

By Nano level Hydrophobation

Diluents Hydrocarbon/ Alcohols Water

VOC Per Ft2 Application 8-15 grams 1.7 grams

Flammability Extremely Flammable Non-flammable

Safety (Inhalation) Requires Protection Not Required

Solvent Toxicity Exposure may cause serious heath effect

Completely safe

Comparative Performance

Zycosil Limitations

Cannot be applied on acrylic paint

Cannot seal major cracks

Once diluted, it’s best used within 48 hrs

Will not allow re-plastering and fixation of tiles, stones, granites etc.

It cannot be applied if: Ambient temperature is below 10º C or above 50ºC Rain is expected within 2 hours following the application. Precipitation has occurred within 24 hours prior to application. High winds or other conditions prevent proper application and overspray that may have an adverse effect on surrounding materials

Solutions to Zycosil Limitations

Use Zycoprime on a Zycosil treated surface, prior to Cladding of Tiles, Granites etc.

Acrylic paint must be removed prior to application of Zycosil

Affordability

Application Costs - Diluted Zycosil is comparable in price to most film formers.

(Most film formers only provide 1 - 3 year performance)

Application Costs - Diluted Zycosil is roughly 30% to 50% lower than most Solvent / Silane based products.

(Most Solvent products offer maximum 5-10 year warranties)

General Estimates

Applications

Prevention of Capillary Rise

Treatment of Crawl Spaces

Foundation treatment

Brick, Tile & Grout

Walkways, Driveways and parking decks

• Basement Walls & Floors

• Pre Fabricated Walls • Sub Grade / Exterior

Walls• Roofing Tiles

Industrial Applications

Cooling Towers

Waste Water Treatment Facilities

Cement Concrete Pipes

Cementitious Surfaces

Bridges

Concrete Crossties

• Cement Sheets• Tunnels• Marine Piers• Dock Pylons• Ship Yards• Parking Garages

Recent Projects

Panama Canal Zone Administration Building ,Panama

City, Panama 

South Carolina State House Columbia, SC 

CONCLUSION

Since this technology is economical than the currently used ones and it is also eco-friendly , therefore extensive work for the development of this technology should be undertaken .

Efforts should be made for the application of zycosil on a wider temoerature range for better application

THANK YOU