SECTION 07 16 00
CEMENTITIOUS WATERPROOFING
** NOTE TO SPECIFIER ** Basecrete Technologies USA ; waterproof bondcoat, sealants.
This section is based on the products of Basecrete Technologies USA , which is located at:
8255 Consumer Ct
Sarasota, FL 34240
Tel: 941-312-5142
Email: request info (info@basecreteusa.com)
Web: https://www.basecretetechnologies.com/en-us
[ Click Here ] for additional information.
At Basecrete, we engineer and manufacture proprietary products for the pool, spa, and construction industries. Our solutions are at the forefront of waterproofing, repairing, protecting, and restoring structures.
Founded in the U.S., all our product development and manufacturing are conducted domestically, ensuring quality and consistency. We understand firsthand the global challenges the construction industry facesfrom delamination and efflorescence to cracks and spalling. Basecrete creates products that help eliminate and reduce common problems faced by applicators and engineers.
GENERAL
SECTION INCLUDES
** NOTE TO SPECIFIER ** Delete items below not required for project.
Waterproofing bond coat sealant system.
Waterproofing concrete densifier system.
Waterproof bondcoat.
Fiberglass mesh.
Waterproof sealant.
Decorative waterproofing microcement.
Plaster and concrete admixture.
Mechanical structural concrete repair.
RELATED SECTIONS
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
Section 03 30 00 - Cast-in-Place Concrete.
REFERENCES
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
American National Standards Institute (ANSI):
ANSI A118 - American National Standards for testing and specifying ceramic tile installation materials.
ANSI 61 - Drinking Water System Components - Health Effects.
ASTM International (ASTM):
ASTM C39 - Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens.
ASTM C67 - Standard Test Methods for Sampling and Testing Brick and Structural Clay Tile.
ASTM C297 - Standard Test Method for Flatwise Tensile Strength of Sandwich Constructions.
ASTM C321 - Standard Test Method for Bond Strength of Chemical-Resistant Mortars.
ASTM C482 - Standard Test Method for Bond Strength of Ceramic Tile to Portland Cement Paste.
ASTM C501 - Standard Test Method for Relative Resistance to Wear of Unglazed Ceramic Tile by the Taber Abraser.
ASTM C661 - Standard Test Method for Indentation Hardness of Elastomeric-Type Sealants by Means of a Durometer.
ASTM C666 - Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing.
ASTM C672 - Standard Test Method for Scaling Resistance of Concrete Surfaces Exposed to Deicing Chemicals.
ASTM C719 - Standard Test Method for Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle).
ASTM C794 - Standard Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants.
ASTM C920 - Standard Test Method to Evaluate Adhesion/Cohesion Properties of a Sealant at Fixed Extension.
ASTM C957 - Standard Specification for High-Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane with Integral Wearing Surface.
ASTM D56 - Standard Test Method for Flash Point by Tag Closed Cup Tester.
ASTM D412 - Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers - Tension
ASTM D570 - Standard Test Method for Water Absorption of Plastics.
ASTM D751 - Standard Test Methods for Coated Fabrics
ASTM D1002 - Standard Test Method for Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Tension Loading (Metal-to-Metal).
ASTM D1037 - Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials.
ASTM D1204 - Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature.
ASTM D1475 - Standard Test Method for Density of Liquid Coatings, Inks, and Related Products.
ASTM D1640 - Standard Test Methods for Drying, Curing, or Film Formation of Organic Coatings.
ASTM D2299 - Recommended Practice for Determining Relative Stain Resistance of Plastics.
ASTM D4068 - Standard Specification for Chlorinated Polyethylene (CPE) Sheeting for Concealed Water-Containment Membrane.
ASTM D4541 - Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers.
ASTM D5084 - Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter.
ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
ASTM E96 - Standard Test Methods for Gravimetric Determination of Water Vapor Transmission Rate of Materials.
ASTM G155 - Standard Practice for Operating Xenon Arc Lamp Apparatus for Exposure of Materials.
Factory Mutual (FM):
FM 4470 - Single-Ply, Polymer-Modified Bitumen Sheet, Built-Up Roof (BUR) and Liquid Applied Roof Assemblies for Use in Class 1 and Noncombustible Roof Deck Construction.
Florida Building Code:
Miami-Dade County Approved.
Universal Product Code (UPC).
SUBMITTALS
Submit under provisions of Section 01 30 00.
Product Data:
Manufacturer's data sheets on each product to be used.
Preparation instructions and recommendations.
Storage and handling requirements and recommendations.
Typical installation methods.
** NOTE TO SPECIFIER ** Delete if not applicable to product type.
Verification Samples: Two representative units of each type, size, pattern, and color.
Shop Drawings: Include details of materials, construction, and finish. Include relationship with adjacent construction.
QUALITY ASSURANCE
Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with a minimum of five years documented experience.
Installer Qualifications: Company specializing in performing Work of this section with minimum two years documented experience with projects of similar scope and complexity.
Source Limitations: Provide each type of product from a single manufacturing source to ensure uniformity.
** NOTE TO SPECIFIER ** Include mock-up if the project size or quality warrant the expense. The following is one example of how a mock-up might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.
Mock-Up: Construct a mock-up with actual materials in sufficient time for Architect's review and to not delay construction progress. Locate mock-up as acceptable to Architect and provide temporary foundations and support.
The intent of a mock-up is to demonstrate quality of workmanship and visual appearance.
If the mock-up is not acceptable, rebuild the mock-up until satisfactory results are achieved.
Retain mock-up during construction as a standard for comparison with completed work.
Do not alter or remove mock-up until work is completed or removal is authorized.
PRE-INSTALLATION CONFERENCE
Convene a conference approximately two weeks before scheduled commencement of the Work. Attendees shall include Architect, Contractor and trades involved. Agenda shall include schedule, responsibilities, critical path items, and approvals.
DELIVERY, STORAGE, AND HANDLING
Store and handle in strict compliance with manufacturer's written instructions and recommendations.
Protect from damage due to weather, excessive temperature, and construction operations.
Do not allow Basecrete products to freeze or overheat.
Keep Basecrete products off the ground. Keep dry and out of direct sun/heat/cold.
PROJECT CONDITIONS
Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
Site Temperature - Do not apply Basecrete products to frozen substrates,
Apply at temperatures between 40 to 105 degrees F (4 to 40 degrees C). Check local weather for temperature variations, precipitation etc. that will affect your application.
WARRANTY
Manufacturer's standard limited warranty unless indicated otherwise.
PRODUCTS
MANUFACTURERS
Acceptable Manufacturer: Basecrete Technologies USA , which is located at:
8255 Consumer Ct
Sarasota, FL 34240
Tel: 941-312-5142
Email: request info (info@basecreteusa.com);Web: https://www.basecretetechnologies.com/en-us
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
Substitutions: Not permitted.
Requests for substitutions will be considered in accordance with the provisions of Section 01 60 00.
** NOTE TO SPECIFIER ** Delete article if not required.
WATERPROOFING BOND COAT SEALANT SYSTEM
** NOTE TO SPECIFIER ** Basecrete Original can be built up to 2 inch increments and feather edges. It can be used in swimming pools, basements, roofs, terraces, foundations, cellars, decks, bathrooms and showers, stucco, driveways, walkways, garages, and more. Note: When installing swimming pool plaster on top of Basecrete, Basecrete should have a minimum CSP (Concrete Surface Profile) of 6 to 8.
Basis of Design: Basecrete Original, as manufactured by Basecrete. A waterproofing bond coat, underlayment, and micro-topping of silica Portland cement. For use where a solid and durable waterproof barrier is required. Basecrete adheres to most surfaces, resists most chemicals and corrosive agents, and tolerates a high degree of movement while maintaining its integrity. Protects structures and water containment vessels from corrosives penetrating the substrate. A liquid compound mix.
Standards Compliance:
ASTM E96 - Vapor transmission.
ASTM C321 - Bond Strength.
ASTM C672 - Freeze-Thaw.
Universal Product Code. UPC.
NSF/ANSI 61 Certified.
Miami-Dade County Approved.
Performance and Design Requirements:
Impact Strength: 19 lbs (8.6 kg).
Compressive Strength: 7050 psi (48.61 MPa).
Tensile Strength: 732 psi (5.05 MPa).
Flexural Strength: 2380 psi (16.41 MPa).
Adhesive Strength:
Concrete: 1372 psi (9.46 MPa).
Steel: 1144 psi (7.89 MPa).
Shear Bond Adhesion: 720 psi (4.96 MPa).
Thickness: Must be 1/8 inch thick to achieve a waterproof membrane.
Temperature and Weather Factors:
Do not allow Product to freeze or overheat.
Coverage: Approximate for one coat. Slump can be adjusted to accommodate specific job requirements by adjusting the liquid or the compound. Do not add water to the mix.
A. Trowel: 1 gallon (3.8 liter) and one 50 Ibs (22.7 kg) bag.
Thickness: 1/16 inch (1.6 mm). Coverage: 80 to 100 sq ft (7.5 to 9.3 sq m).
Thickness: 1/8 inch (3 mm). Coverage: 40 to 50 sq ft (3.7 to 4.6 sq m).
Roller: 5 gallons (18.9 liter) and three 50 Ibs (22.7 kg) bags.
Thickness: 1/16 inch (1.6 mm). Coverage: 450 to 500 sq ft (41.8 to 46.5 sq m).
Thickness: 1/8 inch (3 mm). Coverage: 225 to 250 sq ft (20.9 to 23.2 sq m).
Squeegee: 5 gallons (18.9 liter) and three 50 Ibs (22.7 kg) bags.
Thickness: 1/16 inch (1.6 mm). Coverage: 450 to 500 sq ft (41.8 to 46.5 sq m).
Thickness: 1/8 inch (3 mm). Coverage: 225 to 250 sq ft (20.9 to 23.2 sq m).
Spray: 5 gallons (18.9 liter) and three 50 Ibs (22.7 kg) bags.
Thickness: 1/16 inch (1.6 mm). Coverage: 450 to 500 sq ft (41.8 to 46.5 sq m).
Thickness: 1/8 inch (3 mm). Coverage: 225 to 250 sq ft (20.9 to 23.2 sq m).
** NOTE TO SPECIFIER ** Delete article if not required.
WATERPROOFING CONCRETE DENSIFIER SYSTEM
Basis of Design: Basecrete Intercept as manufactured by Basecrete. A highly viscous colloidal silicate concrete densifier. A primary or secondary waterproofing agent for any concrete surface.
Penetrates deeply into the concrete matrix at a molecular level.
Filles in voids within any concrete structure.
Bonds with free Calcium and Lime in the concrete, to form a dense waterproof barrier of colloidal silicate gel.
The concrete remains able to "breathe", allowing vapors from within the concrete to escape.
Standards Compliance:
ASTM D56-91 - Flash Point: None.
ASTM D5084-91 - Permeability.
ASTM C666 - Freeze/Thaw cycles.
ASTM C666 B - Salt Resistance.
ASTM C67 - Efflorescence.
VOCs: None.
EPA Compliant.
Coverage:
1 Gallon (3.8 liter) Typical Application Coverage: 100 to 140 sq ft (9.3 to 13 sq m).
5 Gallons (19.9 liter) Typical Application Coverage: 500 to 700 sq ft (46.5 to 65 sq m).
** NOTE TO SPECIFIER ** Delete article if not required.
WATERPROOF BONDCOAT
** NOTE TO SPECIFIER ** BASECRETE XTREME is suitable for a wide range of applications and surfaces, from new construction to renovation projects, ensuring strength and durability. Effective for constant underwater submersion like swimming pools, cold joints, ICF / EPS, or CMU block where extreme flexibility is required. With special fiberglass reinforcement, it offers exceptional resistance against chemicals and salt, ideal for the most challenging environments. It is not only a bond coat but a reinforced waterproofing bond coat eliminating the need for fiberglass reinforced sheets in most cases.
Basis of Design: Basecrete Xtreme Flexible Waterproofing as manufactured by Basecrete. A two-component solution, a polymer and fibrocement with an integrated primer layer.
Adheres directly to the substrate.
Reinforcement mesh is not required in most cases.
Fills and seals surface imperfections. Restores the integrity of damaged areas.
** NOTE TO SPECIFIER ** Delete color option not required.
Color: Grey.
Color: White.
Performance and Design Requirements:
Impact Strength: 19 lbs (8.6 kg).
Compressive Strength: 7050 psi (48.61 MPa).
Tensile Strength: 732 psi (5.05 MPa).
Flexural Strength: 2380 psi (16.41 MPa).
Pull Test, 3-Day: +220.
Adhesive Strength:
Concrete: 1372 psi (9.46 MPa).
Steel: 1144 psi (7.89 MPa).
Shear Bond Adhesion: 720 psi (4.96 MPa).
Coverage: Approximate for one coat. Adjust Slump to accommodate specific requirements by adjusting the liquid or the compound.
Trowel: Polymer Resin Liquid: 1 gallon (3.8 liter). Fibrocement: One 50 lbs bag.
Thickness: 1/16 inch (1.6 mm). Coverage: 80 to 100 sq ft (7.5 to 9.3 sq m).
Thickness: 1/8 inch (3 mm). Coverage: 40 to 50 sq ft (3.7 to 4.6 sq m).
Roller: Polymer Resin Liquid: 5 gallons (18.9 liter). Fibrocement: Three 50 lbs bags.
Thickness: 1/16 inch (1.6 mm). Coverage: 450 to 500 sq ft (41.8 to 46.5 sq m).
Thickness: 1/8 inch (3 mm). Coverage: 225 to 250 sq ft (20.9 to 23.2 sq m).
Squeegee: Polymer Resin Liquid: 5 gallons (18.9 liter). Fibrocement: Three 50 lbs bags.
Thickness: 1/16 inch (1.6 mm). Coverage: 450 to 500 sq ft (41.8 to 46.5 sq m).
Thickness: 1/8 inch (3 mm). Coverage: 225 to 250 sq ft (20.9 to 23.2 sq m).
Spray: Polymer Resin Liquid: 5 gallons (18.9 liter). Fibrocement: Three 50 lbs bags.
Thickness: 1/16 inch (1.6 mm). Coverage: 450 to 500 sq ft (41.8 to 46.5 sq m).
Thickness: 1/8 inch (3 mm). Coverage: 225 to 250 sq ft (20.9 to 23.2 sq m).
** NOTE TO SPECIFIER ** Delete article if not required.
FIBERGLASS MESH
Basis of Design: Basecrete Fiberglass Mesh as Manufactured by Basecrete. Reinforcing 4.5 oz fiberglass mesh of multi-strand interwoven glass fibers. Fibers are coated with resin polymers to enhance resistance to attack by alkalinity of mixtures containing Portland cement. Used to repair cracks, solidify corners, or strengthen areas.
Weight: 4.5 oz per sq yd (152.6 grams per cu m).
Width: 4 inches (102 mm). 150 linear feet (45.72 m) per roll.
Width: 9.5 inches. 150 linear feet (45.72 m) per roll.
Width: 38 inches. 150 linear feet (45.72 m) per roll.
Tensile Strength: Warp: 100 tex. Welf: 204 tex.
Elongation: Warp: 4.0 percent. Weft 3.5: percent.
Coating Identity: Resin coating, of 5 percent Na(OH) and 18 to 20 percent content.
Flexibility: Extremely pliable.
Impact Resistance: 75 to 100 in-lbs (8.5 to 11.3 N-m). Per ASTM D1037 modified.
** NOTE TO SPECIFIER ** Delete article if not required.
WATERPROOF SEALANT
Basis of Design: SEAL, Polyurethane waterproof sealant as supplied by Basecrete. A paintable, fast-curing, single-component adhesive/sealant for industrial and construction applications. Tough elastic seal performance. Adheres to steel, aluminum, wood, glass, and concrete. Solvent and isocyanate free.
100 percent solids. No shrinkage.
Fast Skin Over: Low dirt pickup.
Safe to Use: Solvent and Isocyanate Free
Bonds to most common building substrates.
Remains flexible to absorb expansion and contraction.
May contribute to LEED V4 EQ Material Resource Credit 4.1 - Adhesives and Sealants.
ASTM C920, Type S, Grade NS, Class 25.
Uses NT, T, G, A and O.
Federal Specification TT-S-00230-C Type II, Class B.
Corps of Engineers CRD-C-541, Type II, Class B.
Conforms to OTC Rule for Sealants and Caulks.
Meets requirements of California Regs: CARB, BAAQMD and SCAQMD.
Conforms to USDA Requirements for Non-food Contact.
Properties:
VOC's, EPA Test Method 24: Less than 3.4 oz per gallon (25 grams per liter).
Skinover Time at 50 percent R.H. 70 degrees F (21 degrees C) per ASTM D1640: 25 Minutes.
Density per ASTM D1475: 12.8 lbs per gal (1.5 kg per liter).
Hardness per ASTM C661: 45 Shore A
Shear Strength per ASTM D1002: 175 psi (1.2 Mpa)
Peel Strength per ASTM C794:
Aluminum: 27 to 33 lbs (10.4 to 15 kg) per linear inch (25 mm).
Mortar: 27 to 33 lbs (10.4 to 15 kg) per linear inch (25 mm).
Glass: 27 to 33 lbs (10.4 to 15 kg) per linear inch (25 mm).
Pine: 27 to 33 lbs (10.4 to 15 kg) per linear inch (25 mm).
PVC: 27 to 33 lbs (10.4 to 15 kg) per linear inch (25 mm).
Cold Rolled Steel: 27 to 33 lbs (10.4 to 15 kg) per linear inch (25 mm).
Tensile per ASTM D412: 225 psi (1.55 Mpa).
Elongation at Break per ASTM D412: 330 percent.
Chemistry: Hybrid Polymer.
Movement per ASTM C719: Plus or minus 25 percent.
** NOTE TO SPECIFIER ** Delete article if not required.
DECORATIVE WATERPROOFING MICROCEMENT
Basis of Design: SUEDE, Decorative Waterproofing Microcement as supplied by Basecrete. A two-part microceramic system for high-performance, decorative waterproofing. SUEDE Base is a durable bond coat and underlayment. SUEDE Microceramic, the top layer, delivers a sleek, impermeable finish available in 18 colors. They create a long-lasting, moisture-resistant surface for both residential and commercial applications.
Standards: Compliance:
ASTM E96 - Vapor Transmission.
ASTM C321 - Bond Strength.
ASTMC672 - Freeze Thaw.
ASTM D4541.02 - Pull-Off Test.
Properties:
Impact Strength: 19 lbs (8.6 kg).
Compressive Strength: 7050 psi (48.61 Mpa).
Tensile Strength: 732 psi (5.05 Mpa).
Flexural Strength: 2380 psi (16.41 Mpa).
Adhesive Strength:
Concrete: 1372 psi (9.46 Mpa).
Steel: 1144 psi (7.89 Mpa).
Shear Bond Adhesion: 720 psi (4.96 Mpa).
Application Thickness: 1/16 inch (1.6 mm). Semi-waterproof.
Application Thickness: 1/8 inch (3 mm). Fully waterproof.
Seam Strength, ASTM D751: Complied. 33.15 lbs (13 kg) per 2 inch (102 mm) width.
Breaking Strength, ASTM D751-06: Complied.
Transverse: 181.8 psi (1.25 Mpa).
Longitudinal: 199.1 psi (1.37 Mpa).
Dimensional Stability, ASTM D1204-2008: Complied.
At -15 degrees F. Transverse: -0.16.
At 158 degrees F. Transverse: -0.018.
Waterproofness, ASTM D4068-1999: Complied.
Shear Strength, ASTM C482-2022: Complied.
Ultimate Load: 2145.05 lbs (973 kg)
Shear Strength: 143.0 psi (1 Mpa).
Fungus and Micro-Organism Resistance, ANSI A118.10-2014: Complied.
Weatherometer, ASTM G155: Pass.
No Crazing, cracking, spalling, or other surface deteriorations.
Freeze-Thaw, ASTM C67: Pass.
Bond-Strength, ASTM C297: Pass.
Control: 116 psi (0.8 Mpa).
After Accelerated Aging: 370 psi (2.55 Mpa).
Abrasion, ASTM C501 and ASTM C957: Pass.
Percolation, ASTM C39 and ASTM E96: Pass. 0.1
Water-Absorption, ASTM D570: Pass. 10.1 (Percent weight.)
Chemical-Resistance, ASTM D2299: Pass
Concentrated Load, C39 4.12: Pass. No tearing or cracking.
Foot Traffic Resistance, FM 4470: Pass. No tearing or cracking
NSF/ANSI/CAN 61: Pass.
ASTM E84: Pass.
Class: A
Flame Spread Index: 0.
Smoke Developed Index: 10.
** NOTE TO SPECIFIER ** Delete color options not required.
Color: White, S-01.
Color: Beige Sand, S-03.
Color: Light Grey, S-04.
Color: Medium Grey, S-05.
Color: Charcoal, S-07.
Color: Turquoise Blue, S-08.
Color: Water Blue, S-09.
** NOTE TO SPECIFIER ** the following colors are not standard.
Color: Pink Sand, S-02
Color: Concrete, S-03
Color: Bleached Blue, S-10
Color: Sky Blue, S-11
Color: Light Teal, S-12
Color: Silver Sage, S-13
Color: Mint, S-14
Color: Soft Yellow, S-15
Color: Cocoa, S-16
Color: Bright Coral, S-17
Color: Terracotta, S-18
Coverage:
Trowel: Suede Base Liquid: 1.75 gal (6.6 liter). Compound Mix: One 50 lbs (22.7 kg) bag.
Thickness: 1/8 inch (3 mm). Coverage: 40 to 50 sq ft (3.7 to 4.6 sq m).
Roller: Suede Base Liquid: 5 gallons (18.9 liter). Compound Mix: Three 50 lbs (22.7 kg) bags.
Thickness: 1/16 inch (1.6 mm). Coverage: 450 to 500 sq ft (41.8 to 46.5 sq m).
Squeegee: Suede Base Liquid: 5 gallons (18.9 liter). Compound Mix: Three 50 lbs (22.7 kg) bags.
Thickness: 1/16 inch (1.6 mm). Coverage: 450 to 500 sq ft (41.8 to 46.5 sq m).
Spray: Suede Base Liquid: 5 gallons (18.9 liter). Compound Mix: Three 50 lbs (22.7 kg) bags.
Thickness: 1/16 inch (1.6 mm). Coverage: 400 to 500 sq ft (37.2 to 46.5 sq m).
** NOTE TO SPECIFIER ** Delete article if not required.
PLASTER AND CONCRETE ADMIXTURE
Basis of Design: NANO-SET, Plaster and Concrete Admixture as supplied by Basecrete. A performance-enhancing additive. Integrates directly into pool plaster to reduce pigment loss, mottling, and plaster dust, minimizing callbacks and surface defects. Controls calcium hydroxide release and pH spikes. Strengthens and refines plaster surfaces from within to enhance durability, chemical resistance, and application efficiency.
System Description:
Forms millions of fine mineral-based fibers inside the capillary pores.
These dense, interlocking fibers reduce the pore diameter, thus blocking the flow of water through the capillary voids.
The Admixture chemicals remain an integral part of the concrete for the life of the structure, re-activating whenever exposed to moisture.
Can seal static cracks up to 1/64 inch (0.4 mm), which occur months or years after the concrete has cured and hardened.
It may require several weeks to reach its maximum capability. Environmental factors such as ambient temperature, density of concrete, moisture and weather conditions affect the timing of the sealing process.
Protects against rebar corrosion, spalling, freeze/thaw cycles, and weather related damage.
Resists extreme hydrostatic pressure, positive (active) or negative (passive) water pressure side.
Permanent: Becomes an integral part of the concrete.
Not a Vapor Barrier: Allows concrete to breathe.
Negligible interference with water reducers and plasticizers.
Negligible effect/influence on slump and air entrainment.
Impervious to physical damage and deterioration.
Nontoxic, inorganic.
Properties:
Aggregate State: Liquid.
Color: Translucent Yellow.
Bulk Density at 68 degrees F (20 degrees C): 9.10 lbs per gal. (1.15 kg per L)
Viscosity: Brookfield 4 to 7 (LV No. 61/100).
VOC: None.
Working Temperature: Greater than 46 degrees F (8 degrees C).
** NOTE TO SPECIFIER ** Delete article if not required.
MECHANICAL STRUCTURAL CONCRETE REPAIR
Basis of Design: TORQUESTITCH, Mechanical System for Structural Concrete Repair as supplied by Basecrete. A product to stich, reinforce, and repair structural cracks in reinforced concrete structures. Fabricated with a machined face and slot. Welded to a high quality A-706 hook, hot dip galvanized and installed in a niche below the concrete surface.
System: Works by tightening down the anchor wedge to post-tension the rebar stitch, inhibiting the crack from expanding and getting larger.
Anchoring Mechanism: A threaded stud with outward flared cone-shaped end.
Tightening a nut pulls the cone-shaped stud end into the expander sleeve, wedging it outward and locking the anchor into the concrete base material.
Engineered to transfer load away from the fracture, creating a long-lasting fix.
Performance:
Increases strength and stiffness.
Stitch tensioning performance does not rely on glues or epoxies.
Transfers load away from the fracture.
Restores tensile strength across the crack.
Inhibits cracks from expanding or getting larger.
Requires no special tools
Precision Machined: Tightens down securely on flat or convex surfaces.
Length: 12 inches (305 mm). Locks into solid areas of reinforced concrete.
Weld: extends 1/2 inch (13 mm) into machined head. Highly resistant to failure.
Finish: Zinc galvanized.
Warranty: Guaranteed against manufacturers defects.
EXECUTION
EXAMINATION
Do not begin installation until the substrates have been properly constructed and prepared.
If substrate preparation is the responsibility of another installer, notify Architect in writing of unsatisfactory preparation before proceeding.
Inspect Job Site: Determine if any pervious material used is incompatible with Basecrete Products.
PREPARATION
Clean surfaces thoroughly prior to installation.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
Preparing Site: Remove previous material and loose debris. Check and repair cracks or voids with Basecrete repair mortar. Once the site is clean and clear of any old material, loose debris, cracks etc., pressure wash for final preparation. Protect adjacent areas to prevent material from going beyond designated site.
Substrate Surface Preparation: Begin with a Saturated Surface Dry (SSD) substrate that is clearly damp below the immediate surface, has no standing water and has a surface showing no signs of a "film" of water on the surface. Ideally the concrete will be clearly damp (typically much darker than dry concrete), but the surface will have no water present and will be showing "signs" of drying.
Mixing: In accordance with manufacturer's instructions, approved submittals, and in proper relationship with adjacent construction.
INSTALLATION
Install in accordance with manufacturer's instructions, approved submittals, and in proper relationship with adjacent construction.
FIELD QUALITY CONTROL
Field Inspection: Coordinate field inspection in accordance with appropriate sections in Division 01.
** NOTE TO SPECIFIER ** Include if manufacturer provides field quality control with onsite personnel for instruction or supervision of product installation, application, erection, or construction. Delete if not required.
Manufacturer's Services: Coordinate manufacturer's services in accordance with appropriate sections in Division 01.
CLEANING AND PROTECTION
Clean products in accordance with the manufacturers recommendations.
Touch-up, repair or replace damaged products before Substantial Completion.