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Specifications

Super Blockade Specification

Section 07161

CEMENTITIOUS WATERPROOFING

(MERLEX SUPER BLOCKADE)

GENERAL NOTES TO SPECIFIER: THIS SPECIFICATION SECTION HAS BEEN PREPARED TO ASSIST DESIGN PROFESSIONALS IN THE PREPARATION OF PROJECT OR OFFICE MASTER SPECIFICATIONS. IT FOLLOWS GUIDELINES ESTABLISHED BY THE CONSTRUCTION SPECIFICATIONS INSTITUTE, AND THEREFORE MAY BE USED WITH MOST MASTER SPECIFICATION SYSTEMS WITH MINOR EDITING. EDIT CAREFULLY TO SUIT PROJECT REQUIREMENTS. MODIFY AS NECESSARY AND DELETE ITEMS THAT ARE NOT APPLICABLE. VERIFY THAT REFERENCED SECTION NUMBERS AND TITLES ARE CORRECT. (NUMBERS AND TITLES REFERENCED ARE BASED ON MASTERFORMAT, 1995 EDITION). THIS SECTION ASSUMES THE PROJECT MANUAL WILL CONTAIN COMPLETE DIVISION 1 DOCUMENTS INCLUDING SECTIONS 01330-SUBMITTAL PROCEDURES, 01620-PRODUCT OPTIONS, 01630-PRODUCT SUBSTITUTION PROCEDURES, 01660-PRODUCT STORAGE AND HANDLING REQUIREMENTS, 01770-CLOSEOUT PROCEDURES, AND 01780-CLOSEOUT SUBMITTALS. CLOSE COORDINATION WITH DIVISION 1 SECTIONS IS REQUIRED. IF THE PROJECT MANUAL DOES NOT CONTAIN THESE SECTIONS, ADDITIONAL INFORMATION SHOULD BE INCLUDED UNDER THE APPROPRIATE ARTICLES. THIS IS A PROPRIETARY SPECIFICATION FOR MERLEX STUCCO "SUPER BLOCKADE" CEMENTITIOUS WATERPROOFING. NOTES TO THE SPECIFIER ARE CONTAINED IN BOXES AND SHOULD BE DELETED FROM FINAL COPY. OPTIONAL ITEMS REQUIRING SELECTION BY THE SPECIFIER ARE ENCLOSED WITHIN BRACKETS, E.G: [35] [40] [45]. MAKE APPROPRIATE SELECTIONS AND DELETE OTHERS. OPTIONAL PARAGRAPHS REQUIRING SELECTION OF ONE OF THE OPTIONS ARE SEPARATED BY "OR" WITHIN A BOX, E.G: OR OPTIONAL PARAGRAPHS AND FEATURES THAT MAY BE SELECTED OR DELETED AS DESIRED ARE SHOWN IN BOLD FACE TYPE. DELETE BOLD FACE TYPE WHEN INCLUDING THESE PARAGRAPHS OR FEATURES.

Part 1 - General

1.01 Summary

A. Section Includes: One component, polymer-modified portland cement based waterproof coating for application over [portland cement plaster brown coat] [,] [concrete] [and] [masonry] surfaces.

B. Related Sections:
INCLUDE SECTION(S) BELOW THAT SPECIFY SUBSTRATE MATERIALS AND MATERIALS THAT ARE ADJACENT TO FOAM TRIM.

1. Section 03300Cast-in-Place Concrete.
2. Section 03400Precast Concrete.
3. Section 04210Clay Masonry Units.
4. Section 04220Concrete Masonry Units.
5. Section 09220Portland Cement Plaster.

INCLUDE APPROPRIATE LANGUAGE BELOW IF PRODUCTS SPECIFIED IN THIS SECTION ARE TO BE BID AS
ALTERNATES. OTHERWISE DELETE FOLLOWING PARAGRAPH.

C. Alternates: 1. Reference Section 01230Alternates.


1.02 Submittals

A. Reference Section 01330Submittal Procedures; submit following items:

1. Product Data.
2. Quality Assurance/Control Submittals:
a. Qualifications: Manufacturer and applicator qualification data.
b. Certifications.
c. Manufacturer's Installation Instructions.

B. Closeout Submittals: Refer to 01780Closeout Submittals; submit following items:
1. Special Warranties.


1.03 Quality Assurance

A. Qualifications:
1. Manufacturer Qualifications: Minimum five years experience in producing cementitious waterproofing coatings of the type specified.
2. Applicator Qualifications: Licensed contractor with documented experience in application of cementitious waterproof coatings.

B. Certifications: Letter signed by manufacturer certifying that waterproofing complies with local regulations governing use of volatile organic compounds (VOC).

C. Mock-Ups: Apply cementitious waterproofing to substrate material mock-up, full or partial coverage as directed by Architect, and obtain Architect's approval of completed mock-up prior to proceeding with application.

OR

C. Prior to performing waterproofing work, apply a sample of approximately four sf (one m2) in an unobtrusive location, and obtain Architects approval of sample.

1.04 Delivery, Storage, and Handling

A. Reference Section 01660Product Storage and Handling Requirements.

B. Follow manufacturer's instructions.


1.05 Project/SITE Conditions

A. Environmental Requirements:
1. Do not apply when ambient temperature will fall below 40 degrees F (4 degrees C) within 24 hours.
2. Do not apply if rain is forecast within 24 hours.

B. Existing Conditions:
1. Do not apply to frozen or frost filled surfaces.
2. Allow new cementitious surfaces, including mortars, to cure minimum 28 days prior to application.

1.06 SCHEDULING

A. Allow cementitious waterproofing to cure minimum 7 days before filling containment type structures with water.

B. Allow cementitious waterproofing to cure minimum 24 hours before backfilling.

1.07 Warranty

SPECIAL WARRANTIES ARE AVAILABLE ON A PROJECT BY PROJECT BASIS. CONTACT MERLEX REPRESENTATIVE FOR DETAILS.


Part 2 - Products

2.01 Manufacturer

A. Adhesive and Coatings: Merlex Stucco, Inc. (Merlex) 2911 Orange-Olive Road Orange, CA 92865 Tel: (714) 637-1700 Fax: (714) 637-4865

INSERT NAME, ADDRESS AND PHONE NUMBERS OF LOCAL REPRESENTATIVE BELOW.
1. Representative:
2. Substitutions: None permitted.

COMPLETE THE FOLLOWING IF USING STANDARD FOAM TRIM SHAPES PRODUCED BY A SEPCIFIC MANUFACTURER, AND VERIFY THAT PRODUCT NUMBERS ARE NOTED ON DRAWINGS. OTHERWISE DELETE FOLLOWING PARAGRAPH.

B. Product: Super Blockade.

C. Substitutions: None permitted.


2.02 Materials

A. Cementitious Waterproofing: One component, polymer-modified proprietary formulation of portland cements, graded aggregates, and chemical additives.

1. Physical Properties:
Compressive Strength ASTM C 109 7 Day: 3900 psi (26 900 kPa) 28 Day: 5200 psi (35-900 kPa)
Tensile Strength ASTM C 190 7 Day: 365 psi (2510 kPa) 28 Day: 560 psi (3860kPa)
Water Absorption ASTM C 67 24 Hours: 4.2 percent
Accelerated Weathering ASTM G 23 (Carbon Arc) 2000 Hours: No surface cracking, blistering, flaking, chalking, crazing, or other deleterious effects
Salt Spray ASTM B 117 No effect after 300 hours
Freeze-Thaw ASTM C 67 50 Cycles: Passed
Hydrostatic Pressure ASTM D 4068 72 inch (1830 mm) limit of water
Manometer: No leakage

2. Color: [Natural grey] [White].

B. Water: Potable.

 

Part 3 - Execution

3.01 EXAMINATION

REVIEW MERLEX REQUIREMENTS FOR PREPARATION OF VARIOUS SURFACE MATERIALS AND VERIFY THAT OTHER SECTIONS OF THE PROJECT MANUAL CONTAIN APPROPRIATE INSTRUCTIONS TO PREPARE THOSE SURFACES.

A. Examine substrates upon which waterproofing will be applied.
1. Verify that surface is structurally sound, clean, free of dust, dirt, paint products, previously applied water repellents, efflorescence or other forms of contamination that could prevent proper penetration of waterproofing.
2. Verify that surface cracks, holes and voids in excess of 1/16 inch (1.5 mm) have been repaired.
3. Verify that smooth formed concrete surfaces have been lightly sand-blasted.
4. Consult manufacturer's representative if conditions exist that are not covered by, or cause conflict with, manufacturer's installation instructions.

B. Coordinate with responsible entity to perform corrective work on unsatisfactory substrates.

C. Commencement of work by applicator is acceptance of substrate.


3.02 MIXING

A. Mix with water in accordance with manufacturer's instructions using a mechanical mixer.


3.03 APPLICATION

A. Evenly wet surfaces to be coated.

B. Follow manufacturer's instructions for [one] [two] coat application.


3.04 CURING

A. Damp curing may be necessary during hot, windy weather; contact manufacturer's representative for requirements.


3.05 CLEANING

A. Clean spills and spatters before material is allowed to dry.

B. Keep premises free form accumulation of waste and debris. Upon completion of work, remove surplus materials, waste and debris from site.

End of Section