RepCon® V/O

RepCon® V/O

RepCon® V/O O is a single-component, polymer-modified, fiber-reinforced concrete repair mortar with integral corrosion inhibitor for use in a variety of horizontal, vertical, and overhead repair applications.
RepCon® V/O incorporates the latest in polymer technology, offering superior durability, performance and ease of application in industrial, commercial, and infrastructure/DOT applications.

  • One-component dry polymer-modified, just add water
  • Fiber-reinforced for excellent strength and freeze thaw durability
  • Hand-applied or spray applied for large projects
  • Easy-to-apply/finish consistency up to 2”
  • Contains integral corrosion inhibitor

Coverage

Yield per 50 lb unit = .43 cu-ft

Packaging

50 lb bag (also available in a 50 lb plastic pail)

Shelf Life

Shelf life of unopened bags stored in a dry facility is 12 months. Excessive temperature differential and/or high humidity can shorten the shelf life expectancy. Store in a cool, dry area away from direct sunlight.

Standards

  • ASTM C928 Rapid-hardening Cementitious Mortar
  • ASTM C109 Compressive Strength
  • ASTM C882 Slant Shear Bond Strength
  • Complies with CDPH Standard Method V1.2
  • USGBC’s LEED v4 compliance

Surface Preparation

  • Cleaning the Surface: Ensure the concrete is sound, and free from oil, grease, dust, laitance, or other contaminants. Saw cut the perimeter of the repair area 1/8” deeper than the repair depth to create a notched, reinforced edge.
  • Abrasive Preparation: Mechanically abrade the surface to a minimum Concrete Surface Profile (CSP) of 5, in line with ICRI 310.2 guidelines. All concrete surfaces must be saturated-surface-damp (SSD) with no standing water present.
  • Steel Reinforcement Treatment: Clean all exposed steel reinforcement of rust and coat with SpecPrep SB. Apply a spray or brush coat of SpecPrep SB to SSD concrete, proceeding with the repair mortar application wet on wet or within the recommended open time as per the SpecPrep SB datasheet.

Mixing and Application

  • Mixing Procedure: Mix 6.25 to 6.75 pints of clean water per 50 lb bag of RepCon® V/O, adjusting for desired consistency. Use a low-speed drill for mixing, starting with water then gradually adding the RepCon® V/O. Mix for 2 to 3 minutes until homogenous.
  • Application Instructions: For placement, trowel RepCon® V/O firmly into the prepared area ensuring full contact with the bonding surface. Overfill slightly and shape roughly during placement.
  • Shaping: After the initial set when RepCon® V/O is surface hard, shave the material to the final shape using a steel trowel. The maximum depth of neat repair mortar is 2” per lift; additional lifts can be applied after the initial set ensuring the original lift has a rough surface to enhance bond between lifts.

Finishing and Curing

  • Finishing: Finish the repair material to match the surrounding concrete texture. RepCon® V/O is self-curing under most conditions but in severe drying conditions, an ASTM C309 compliant water-based SpecChem curing compound should be used.
  • Curing: Moist curing is recommended immediately after finishing and should continue for 48 hours. Protect newly applied material from rain, sun, and wind until compressive strength is 70% of the 28-day strength. Cover with insulating material to prevent freezing. Setting time is dependent on temperature and humidity.
Set Time at 70°F
ASTM C266
Initial Set 50 min
Final Set 90 min
Compressive Strength
ASTM C109
1 day 3650 psi
7 days 5470 psi
28 days 7450 psi
Bond Strength
ASTM C882
7 days 2185 psi
Flexural Strength
ASTM C348
7 days 650 psi
28 days 1210 psi
Length Change
ASTM C157
Wet Cure @ 28 days +0.01%
Air Cure @ 28 days -0.06%
Freeze-Thaw
ASTM C666 Procedure A
Relative Durability Factor @ 28 days = 95.7
Rapid Chloride Permeability
ASTM C1202
28 days 890 coulombs
Modulus of Elasticity
ASTM C469		 4.8 x 106 psi
Data Sheets

Download Technical Data Sheet

Download Safety Data Sheet

Download Specifications Guide

Download Technical Data Sheet (Spanish)

Play

Coverage

Yield per 50 lb unit = .43 cu-ft

Packaging

50 lb bag (also available in a 50 lb plastic pail)

Shelf Life

Shelf life of unopened bags stored in a dry facility is 12 months. Excessive temperature differential and/or high humidity can shorten the shelf life expectancy. Store in a cool, dry area away from direct sunlight.

Standards

  • ASTM C928 Rapid-hardening Cementitious Mortar
  • ASTM C109 Compressive Strength
  • ASTM C882 Slant Shear Bond Strength
  • Complies with CDPH Standard Method V1.2
  • USGBC’s LEED v4 compliance

Surface Preparation

  • Cleaning the Surface: Ensure the concrete is sound, and free from oil, grease, dust, laitance, or other contaminants. Saw cut the perimeter of the repair area 1/8” deeper than the repair depth to create a notched, reinforced edge.
  • Abrasive Preparation: Mechanically abrade the surface to a minimum Concrete Surface Profile (CSP) of 5, in line with ICRI 310.2 guidelines. All concrete surfaces must be saturated-surface-damp (SSD) with no standing water present.
  • Steel Reinforcement Treatment: Clean all exposed steel reinforcement of rust and coat with SpecPrep SB. Apply a spray or brush coat of SpecPrep SB to SSD concrete, proceeding with the repair mortar application wet on wet or within the recommended open time as per the SpecPrep SB datasheet.

Mixing and Application

  • Mixing Procedure: Mix 6.25 to 6.75 pints of clean water per 50 lb bag of RepCon® V/O, adjusting for desired consistency. Use a low-speed drill for mixing, starting with water then gradually adding the RepCon® V/O. Mix for 2 to 3 minutes until homogenous.
  • Application Instructions: For placement, trowel RepCon® V/O firmly into the prepared area ensuring full contact with the bonding surface. Overfill slightly and shape roughly during placement.
  • Shaping: After the initial set when RepCon® V/O is surface hard, shave the material to the final shape using a steel trowel. The maximum depth of neat repair mortar is 2” per lift; additional lifts can be applied after the initial set ensuring the original lift has a rough surface to enhance bond between lifts.

Finishing and Curing

  • Finishing: Finish the repair material to match the surrounding concrete texture. RepCon® V/O is self-curing under most conditions but in severe drying conditions, an ASTM C309 compliant water-based SpecChem curing compound should be used.
  • Curing: Moist curing is recommended immediately after finishing and should continue for 48 hours. Protect newly applied material from rain, sun, and wind until compressive strength is 70% of the 28-day strength. Cover with insulating material to prevent freezing. Setting time is dependent on temperature and humidity.
Set Time at 70°F
ASTM C266
Initial Set 50 min
Final Set 90 min
Compressive Strength
ASTM C109
1 day 3650 psi
7 days 5470 psi
28 days 7450 psi
Bond Strength
ASTM C882
7 days 2185 psi
Flexural Strength
ASTM C348
7 days 650 psi
28 days 1210 psi
Length Change
ASTM C157
Wet Cure @ 28 days +0.01%
Air Cure @ 28 days -0.06%
Freeze-Thaw
ASTM C666 Procedure A
Relative Durability Factor @ 28 days = 95.7
Rapid Chloride Permeability
ASTM C1202
28 days 890 coulombs
Modulus of Elasticity
ASTM C469		 4.8 x 106 psi
Data Sheets

Download Technical Data Sheet

Download Safety Data Sheet

Download Specifications Guide

Download Technical Data Sheet (Spanish)

Play