This specification is provided by: ABATRON, INC., 5501 95TH Ave., Kenosha, WI 53144, 800-445-1754
SECTION 03930
CONCRETE REHABILITATION
PART 1 GENERAL
1.01 SUMMARY
A. Section Includes: Concrete restoration and maintenance; structural crack-injection systems.
Specifier Note: Revise paragraph below to suit project requirements. Add section numbers and titles per CSI MasterFormat and specifier's practice.
B. Related Sections:
Specifier Note: Article below may be omitted when specifying manufacturer's proprietary products and recommended installation. Retain Reference Article when specifying products and installation by an industry reference standard. If retained, list standard(s) referenced in this section. Indicate issuing authority name, acronym, standard designation and title. Establish policy for indicating edition date of standard referenced. Conditions of the Contract or Division 1 References Section may establish the edition date of standards. This article does not require compliance with standard, but is merely a listing of references used. Article below should list only those industry standards referenced in this section. Retain only those reference standards to be used within the text of this Section. Add and delete as required for specific project.
1.02 REFERENCES
A. ASTM International:
1. ASTM C881/C881M Standard Specification for Epoxy-Resin-Base Bonding Systems for Concrete.
B. American Concrete Institute (ACI):
1. ACI 503.1 Standard Specification for Bonding Hardened Concrete Steel, Wood, Brick, and Other Materials to Hardened Concrete with a Multi-Component Epoxy Adhesive.
2. ACI 503.2 Standard Specification for Bonding Plastic Concrete to Hardened Concrete with a Multi-Component Epoxy Adhesive.
3. ACI 503.3 Standard Specification for Producing a Skid-Resistant Surface on Concrete by the Use of a Multi-Component
Epoxy System.
4. ACI 503.4 Standard Specification for Repairing Concrete with Epoxy Mortars.
C. International Organization for Standardization (ISO):
1. ISO 9001 Quality Systems - Model for Quality Assurance.
Specifier Note: Article below should be restricted to statements describing design or performance requirements and functional (not dimensional) tolerances of a complete system. Limit descriptions to composite and operational properties required to link components of a system together and to interface with other systems.
1.03 SYSTEM DESCRIPTION
A. Design Requirements: Provide products and systems that have been manufactured, fabricated and installed to the following criteria:
1. Comply with ASTM C881.
2. Comply with ACI 503. [1] [2] [3] [4].
Specifier Note: Article below includes submittal of relevant data to be furnished by Contractor before, during, or after construction. Coordinate this article with Architect's and Contractor's duties and responsibilities in Conditions of the Contract and Division 1 Submittal Procedures Section.
1.04 SUBMITTALS
A. General: Submit listed submittals in accordance with Conditions of the Contract and Division 1 Submittal Procedures.
B. Product Data: Submit product data for specified products.
C. Quality Assurance:
1. Test Reports: Certified test reports showing compliance with specified performance characteristics and physical properties.
2. Certificates: Product certificates signed by manufacturer certifying materials comply with specified performance characteristics and criteria and physical requirements.
3. Manufacturer's Instructions: Manufacturer's installation instructions.
Specifier Note: Coordinate paragraph below with Part 3 Field Quality Requirements Article. Retain or delete as applicable.
D. Manufacturer's Field Reports: Manufacturer's field reports specified herein.
E. Closeout Submittals: Submit the following:
1. Warranty: Warranty documents specified herein.
2. Operation and Maintenance Data: Operation and maintenance data for installed products in accordance with Division 1 Closeout Submittals (Maintenance Data and Operation Data) Section. Include methods for maintaining installed products, and precautions against cleaning materials and methods detrimental to finishes and performance.
1.05 QUALITY ASSURANCE
A. Qualifications:
1. Installer experienced in performing work of this section who has specialized in installation of work similar to that required for this project.
2. Manufacturer Qualifications: Manufacturer capable of providing field service representation during construction and approving application method.
Specifier Note: Paragraph below should list obligations for compliance with specific code requirements particular to this section. General statements to comply with a particular code are typically addressed in Conditions of the Contract and Division 1 Regulatory Requirements Section. Repetitive statements should be avoided. Current data on building code requirements and product compliance may be obtained from Abatron technical support specialists.
B. Provide concrete restoration and maintenance system and/or structural crack-injection system that complies with the following requirements:
1. ASTM C881.
2. ACI 503.[1] [2] [3] [4].
Specifier Note: Retain paragraph below for erected assemblies (either onsite or offsite) required for review of construction, coordination
of work of several sections, testing or observation of operation. Mock-ups, when accepted or approved, establish standards by which work will be judged. Coordinate below with Division 1 Quality Control (Mock-Up Requirements) Section.
C. Mock-Ups: Install at project site job mock-up using acceptable products and manufacturer approved installation methods. Obtain Owner's and Architect's acceptance of finish color, texture and pattern, and workmanship standard. Comply with Division 1 Quality Control (Mock-Up Requirements) Section.
Specifier Note: Edit paragraph below to specifying mock-up size.
1. Mock-Up Size: [Specify mock-up size.] sample panel at jobsite at location as directed.
2. Maintenance: Maintain mock-up during construction for workmanship comparison; remove and legally dispose of mock-up when no longer required.
3. Incorporation: Mock-up may be incorporated into final construction upon Owner's approval.
D. Preinstallation Meetings: Conduct preinstallation meeting to verify project requirements, manufacturer's installation instructions and manufacturer's warranty requirements. Comply with Division 1 Project Management and Coordination (Project Meetings).
1.06 DELIVERY, STORAGE & HANDLING
A. General: Comply with Division 1 Product Requirements.
B. Ordering: Comply with manufacturer's ordering instructions and lead time requirements to avoid construction delays.
C. Delivery: Deliver materials in manufacturer's original, unopened, undamaged containers with identification labels intact.
D. Storage and Protection: Store materials protected from exposure to harmful weather conditions. 1.07 ENVIRONMENTAL REQUIREMENTS
A. Safety Material Data Sheets: Comply with requirements.
Specifier Note: Coordinate article below with Conditions of the Contract and with Division 1 Closeout Submittals (Warranty).
1.08 WARRANTY
A. Project Warranty: Refer to Conditions of the Contract for project warranty provisions.
B. Manufacturer's Warranty: Submit, for Owner's acceptance, manufacturer's standard warranty. Manufacturer's warranty is in addition to, and not a limitation of, other rights Owner may have under Contract Documents.
Specifier Note: Coordinate paragraph below with manufacturer's warranty requirements.
C. Warranty Period: [Specify term.] years commencing on Date of Substantial Completion.
PART 2 PRODUCTS
Specifier Note: Retain article below for proprietary method specification. Add product attributes, performance characteristics, material standards and descriptions as applicable. Use of such phrases as "or equal" or "or approved equal" or similar phrases may cause ambiguity in specifications. Such phrases require verification (procedural, legal and regulatory) and assignment of responsibility for determining "or equal" products.
2.01 CONCRETE RESTORATION AND MAINTENANCE EPOXY COMPOUND
A. Manufacturer: Abatron, Inc.
1. Contact: 5501 95th Ave., Kenosha, WI 53144; Telephone: (800) 445-1754, (262) 653-2000; Fax: (262) 653-2019; E-mail: info(@,abatron.com; website: www.abatron.com.
B. Proprietary Products/Systems:
1. Epoxy Patching and Resurfacing Compound: ABOCRETE.
a. Compliance: ACI 503.1; ASTM C881, Types 1 and 3, Grade 3, Class 3.
b. Tensile Strength: 9,000 psi (62 MPa) (633 kg/cm²).
c. Flexural Strength: 10,500 psi (72 MPa) (738 kg/cm²)
d. Compressive Strength: 12,000 psi (83 MPa) (847 kg/cm²).
e. Components: Epoxy resin, liquid hardener, sand.
f. Ratio by Volume: 4/1.
g. Color: [Neutral] [Light gray] [Dark gray] [Custom] [ ].
Specifier Note: Hardening time varies depending on the temperature, thickness, amount of aggregate and other variables. Consult manufacturer for specific installation hardening times.
h. Hardening Time: 1 - 6 hours.
Specifier Note: As a finish option, before ABOCRETE hardens, clear silica sand or opaque quartz sand particles (Decorative ColorGrit) may be broadcast onto the surface providing additional color, texture and slip resistance.
i. Finish: [Silica sand] [Decorative ColorGrit; color: {As selected} {Custom} {gm_____}].
Specifier Note: For cold/subfreezing weather or wet surfaces, ABOCRETE can be blended with AboCure 7912-1. Consult manufacturer for mixing ratios.
j. Cold Weather Hardener: AboCure 7912-1.
k. Sand: [As provided by Abatron] [_____].
l. Aggregates: Type [Grit] [Chips] [Pebbles] [Gravel] [Rocks] [Fiberglass] [Fabrics].
Specifier Note: Select AboWeld 55-1 for building up on vertical surfaces without forms or molds.
2. Epoxy Adhesive Paste: AboWeld 55-1.
a. Compliance: ASTM C881, Type 1 and 3, Grade 3, Class C.
b. Features: No slump, thixotropic.
c. Composition: 100% solids.
d. Ratio by Volume: 1/1.
e. Pot Life: 1 hour.
f. Hardening Time: 1 - 6 hours at room temperature.
g. Color: [Gray] [Custom] [ ]
Specifier Note: For cold/subfreezing weather or wet surfaces, 2 parts by volume AboWeld 55-1 can be mixed with 1 volume of AboCure 55-1 CLD.
h. Cold Weather Hardener: AboCure 55-1 CLD,
Specifier Note: Select AboWeld 8708-2 for fast hardening, filling or sealing of nonmoving cracks and holes prior to injection.
3. Adhesive Patching Paste: AboWeld 8708-2.
a. Compliance: ASTM C881, Type 1, Grade 3, Class B and C.
b. Features: Fast hardening, no slump.
c. Composition: 100% solids.
d. Ratio by Volume: 1/1.
e. Pot Life: 10 - 15 minutes.
f. Hardening Time: 10 - 20 minutes.
g. Finished Blended Color: Gray.
Specifier Note: Select AboCast 8005-6 for bonding between wet-poured concrete and old concrete. Product is extendable with fillers like sand, gravel or chips.
4. Bonding Agent: AboCast 8005-6.
a. Compliance: ASTM C881, Type 1, 2 and 3, Grade 2, Class B and C.
b. Features: Ease of application; chemical resistant.
c. Filler: [Sand] [Gravel] [Chips].
d. Composition: 100% epoxy solids.
e. Ratio by Volume: 7/3.
f. Working Life: 30 - 40 minutes.
g. Hardening Time: 30 minutes - 3 hours.
Specifier Note: Select AboCast 8007-2 for filling joints and cracks in exposed structures, repairing cracks between concrete and steel, sealing framed openings.
5. Sealant/Joint Filler: AboCast 8007-2.
a. Compliance: ASTM C881, Type 1, 2 and 3, Grade 3, Class B and C.
b. Features: Acid, alkali, fuel resistant; weather and waterproof; wet surface friendly.
c. Characteristics: Heavy duty, high adhesion.
Specifier Note: Resin and hardener can be mixed in varying ratios to increase flexibility.
d. Flexibility: Medium; elongation 40%.
e. Composition: 2-part, polysulfide-epoxy; 100% solids.
f. Ratio by Volume: 1/1.
g. Pot Life: 30 - 40 minutes.
Specifier Note: Hardening time varies depending on mass and temperature. Consult manufacturer for specific installation hardening times.
h. Hardening Time: 1 - 24 hours.
i. Hardening Temperature: Above 32 degrees F (1 degree C).
j. Thixotropic Cured Hardness: Shore D < 55.
k. Tensile Strength: 1900 psi (13,098 kPa).
Specifier Note: Select the Abatron AboJet crack injection system to restore monolithic integrity to a cracked structural element.
2.02 STRUCTURAL CRACK REPAIR
A. Structural Crack Injection System: AboJet:
1. Compliance: ASTM C881.
2. Tensile Strength: 5000 - 11,000 psi (35 - 76 MPa).
3. Flexural Strength: 5000 - 13,000 psi (35 - 90 MPa).
4. Compressive Strength: 8000 - 16,000 psi (55 - 110 MPa).
B. Crack Injection Resins:
Specifier Note: Select AboJet-1 for general purpose, dry and wet surfaces.
1. AboJet-1:
a. Compliance: ASTM C881, Type 1, Grade 2, Class C.
b. Viscosity: Medium, 20 poises.
c. Resin/Hardener Ratio: 2/1.
Specifier Note: Select AboJet-2 for freezing weather and underwater or wet surfaces.
2. AboJet-2:
a. Compliance: ACI 503; ASTM C881.
b. Viscosity: Low, < 5 poises.
c. Resin/Hardener Ratio: 2/1.
d. Limitations: Toxic, exterior use only.
Specifier Note: Select AboJet 8610-1 for very thin cracks.
3. AboJet 8610-1:
a. Viscosity: Very low, < 2 poises.
b. Resin/Hardener Ratio: 5/1.
Specifier Note: Select AboJet 8610-2 for thin cracks < 1/4 inch (6.4 mm).
4. AboJet 8610-2:
a. Viscosity: Low, < 5 poises.
b. Resin/Hardener Ratio: 5/1.
Specifier Note: Select AboJet 8610-3 for average cracks < 1/2 inch (12.7 mm).
5. AboJet 8610-3:
a. Viscosity: Medium, < 15 poises.
b. Resin/Hardener Ratio: 5/1.
Specifier Note: Select AboJet 8702-3 for wider cracks > 1/2 inch (12.7 mm).
6. AboJet 8702-3:
a. Viscosity: Higher, < 60 poises.
b. Resin/Hardener Ratio: 5/1.
Specifier Note: Edit article below to suit project requirements. If substitutions are permitted, edit text below. Add text to refer to Division 1 Project Requirements (Product Substitutions Procedures) Section.
2.03 PRODUCT SUBSTITUTIONS
A. Substitutions: No substitutions permitted.
PART 3 EXECUTION
3.01 MANUFACTURER'S INSTRUCTIONS
Specifier Note: Article below is an addition to the CSI SectionFormat . Revise article below to suit project requirements and specifier's practice.
A. Compliance: Comply with manufacturer's written data, including product technical bulletins, product catalog installation instructions, product carton installation instructions.
3.02 EXAMINATION
A. Site Verification of Conditions: Verify that substrate conditions, which have either been previously installed under other sections, or that existing site conditions, are acceptable for product installation in accordance with manufacturer's instructions.
3.03 PROTECTION
A. Other Trades: Protect installed work of other trades from staining or contamination.
3.04 PREPARATION
Specifier Note: Areas exhibiting "laitance" (deceptively sound-looking surface of new concrete) must be removed with sandblasting or 10 - 15% muriatic acid etch. Some contamination or tough coating can be removed with flame. Sandblasting is preferred whenever practical. Consult manufacturer's technical literature or contact manufacturer for comprehensive preparation instructions.
A. Surface Preparation: Concrete Restoration:
1. [ABOCRETE] [AboWeld 55-1] [AboWeld 8708-2] [AboCast 8005-6] [AboCast 8007-2].
a. Remove oil, grease, wax, old paint [Areas exhibiting laitance] with [Detergents, solvents or strippers] [Sandblasting] [Flame] [10 - 15% muriatic acid etch].
b. Rinse, dry and vacuum affected area.
c. Deepen and widen thin cracks to allow filling with grout.
Specifier Note: Use the following article if muriatic acid etch is specified as a cleaner.
d. Rinse well; neutralize with soda-ash solution and rinse well.
B. Surface Preparation: Structural Crack Repair:
1. [AboJet-1] [AboJet-2] [AboJet 8610-1] [AboJet 8610-2] [AboJet 8610-3] [AboJet 8702-3].
a. Clean crack with [Water jet] [Compressed air] [______] to render crack free and accessible.