Knowde Enhanced TDS
Identification & Functionality
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Benefits
- Resistant : Withstands freeze/thaw cycles.
- Rapid Set : 20 minutes.
- Versatile : Horizontal, vertical and overhead.
- Performance : Excellent flexural, tensile and compressive strengths.
- Corrosion Inhibitor : Effectively reduces corrosion rate of steel reinforcement.
- Low Permeability : Reduces potential for corrosion.
- Consistent : Strict Quality Control testing and standards.
Applications & Uses
- Markets
- Applications
- Uses
V/O Patch CI is ideal for a wide variety of vertical and overhead concrete repairs:
- Parking structures
- Bridge structures
- Docks and piers
- Tunnels
- Vertical precast concrete products
- Tilt-up panels
- Columns
- Concrete walls
- Interior or exterior applications
- Application
Surface Preparation:
All surfaces in contact with V/O Patch CI shall be free of dirt, oil, grease, laitance and other contaminants that may act as bondbreakers. All unsound concrete should be removed to ensure a good bond. Smooth, dense surfaces need to be mechanically abraded to provide necessary bonding requirements. Mechanically prepare the substrate to a minimum CSP 5 following ICRI Guideline 310.2R to allow proper bonding. ACI recommends the area to be patched should be saturated for 24 hours before placement. Remove any standing water. Surface should be saturated surface dry (SSD). For best results, scrub some of the mixed components into the prepared surface. Do not allow scrub coat to fully dry before placement. Always apply a test patch. Maintain contact areas between 40°F (4°C) and 90°F (32°C) prior to repair and during initial curing period.
Application Thickness:
1/8” - 2”
Coverage/Yield:
50 lbs (22.7 kg) will fill approximately 0.43 ft³ (0.012 m³) when 4.0 quarts mixing water is used.
Mixing:
For best results, use a mechanical mixer with rotating blades or use a heavy duty drill 1/2” (15 mm) (or larger) low-speed, corded drill and mixing paddle #6 per ICRI Technical Guideline 320.5. Pre-wet mixer and empty excess water. Place 4.0 quarts of cool, clean potable water in mixer, then add dry material. Mix on low RPM for a total of 3 to 5 minutes. Mix only enough material that can be placed within working time. Do not blend excess water as this will cause bleeding and segregation. Do not use any other admixtures or additives.
Placing:
V/O Patch CI should be placed upon completion of mixing. Place material consistently, avoiding any air entrapment. Use slightly more material than needed and roughly shape during placement. When material has reached the proper set, it can be shaved, shaped or molded with a steel trowel. For placements greater than 2”, multiple lifts can be applied. Allow material to reach initial set before the next layer is applied. Profile or roughen each lift to ensure a good bond.
Finishing & Curing:
Follow standard ACI curing practices. Exposed surfaces should be cured with a membrane forming compound such as US SPEC Maxcure Resin Clear, US SPEC Hydrasheen or US SPEC Hydrasheen 30%.
Properties
- Physical Properties
All physical property testing performed in laboratory conditions of 73.5 ± 3.5°F (23 ± 2°C) and a relative humidity no less than 50% unless otherwise determined by the test method or specification. All results represent V/O Patch CI with 4.0 quarts water unless listed otherwise. Tests are conducted under standardized conditions for comparative purposes, and results may not be representative of performance under field conditions.
Property and Test Method Results Compressive Strength 3 Hours 1 Day 7 Days 28 Days ASTM C109 2,000 psi
(13.78 MPa)3,000 psi
(20.68 MPa)4,500 psi
(31.02 MPa)5,500 psi
(37.92 MPa)Rate of Set Working Time Initial Final ASTM C266 :20 :30 :45 Length Change Storage % Length Change Average ASTM C157
28 Day Air (-)0.03 28 Day Water (+)0.08 Density
ASTM C138122 lb/ft3 (1,954 kg/m3) Modulus of Elasticity
ASTM C4692.38 x 106 @ 28 days (16.42 GPa)
Freeze/Thaw Resistance F/T Cycles Durability ASTM C666 300 100% Scaling Resistance Cycles Scaled Material ASTM C672 25 .24 kg/m2 Bond Strength 1 Day 7 Days ASTM C882 1,500 psi
(10.34 MPa)1,700 psi
(11.72 MPa)Chloride Ion Resistance Age Penetrability Electrical Resistivity (ohm.cm) ASTM C1202 28 Days <1200 coulombs 50,000 Coefficient of Thermal Expansion
CRD C395.3 x 10-6 in/in°F (9.54 x 10-6 cm/cm°C) Corrosion Resistivity V/O Patch CI tested compatible with VectorTM Corrosion Technologies Galvashield® embedded galvanic anodes.
Regulatory & Compliance
- Standards
V/O Patch CI meets and exceeds the requirements of ASTM C928 R2.
Technical Details & Test Data
- Limitations
Do not apply when the surface or ambient temperature is below 40°F (4°C) or expected to fall below 40°F (4°C) within 48 hours. Do not apply over surfaces that are frozen or contain frost. Do not apply over any active faults or cracks in the substrate without addressing any movement that may occur. Allow concrete to fully cure for 28 days before use of this product. Setting time will speed up in hot weather and slow in cold weather.
Safety & Health
- Danger
This product contains Crystalline Silica (CAS# 14808-60-7) and Portland Cement (CAS# 65997-15-1). Harmful if swallowed. Causes skin irritation. Causes serious eye damage. May cause an allergic skin reaction. May cause cancer. May cause respiratory irritation. Causes damage to organs through prolonged or repeated exposure. Do not eat, drink or smoke when using this product. Wash hands thoroughly after handling. Contaminated work clothing must not be allowed out of the workplace. Do not handle until all safety precautions have been read and understood. Wear protective gloves/protective clothing/eye protection/face protection. Use only outdoors or in a well-ventilated area. Do not breathe dust. Keep away from children. Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.
- First Aid
- If swallowed : Immediately call a poison center/doctor. Rinse mouth.
- If in eyes : Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a poison center/doctor.
- If on skin : Wash with plenty of water. Take off contaminated clothing and wash it before reuse.
- If skin irritation or rash occurs : Get medical advice/attention.
- If inhaled: Remove person to fresh air and keep comfortable for breathing. Call a poison center/doctor if you feel unwell.
Packaging & Availability
- Packaging Type
- Packaging
50 lb (22.7 kg) bag, 63 bags per pallet.
Storage & Handling
- Storage
Normal cement storage and handling practices should be observed. Store material in an interior, cool, dry place. Shelf life is one year in original, unopened container.