Spec Disk 1998 Spring 4.0/Spec Disk 1998 Spring 4.0.iso/text/07162vdx.txt

Text File | 1998-06-10 | 18KB | 433 lines

                         SECTION 07162

                   CRYSTALLINE WATERPROOFING
NOTE ** VANDEX SUPER, for standard applications.
NOTE **
NOTE ** This section is based on products of VANDEX Sales &
        Services, Inc., which is located at:
NOTE **    P.O.  Box 1440
NOTE **    Columbia, MD 21044-0440
NOTE **    Tel:  [phone] toll free
NOTE **    Tel:  [phone]
NOTE **    Fax:  [phone]
NOTE **    e-mail:  [e-mail]
NOTE **
NOTE ** This section applies to all standard concrete
        waterproofing of old or new concrete, positive or
        negative water pressure side, for foundations,
        elevator pits, potable water, waste water, and salt
        water storage tanks.
NOTE **
NOTE ** Contact manufacturer for assistance with specialty
        applications, such as slurry walls, marine
        aquariums, sewer manholes, etc.
NOTE **
NOTE ** SECTION 07162 - CRYSTALLINE WATERPROOFING,
        Copyright 1997, The Architect's Catalog, Inc.

PART 1  GENERAL

1.1 SECTION INCLUDES
NOTE ** Delete items below not required for project.  Add
        description of any applications that are not
        clearly indicated on the drawings.

    A.  Crystalline waterproofing on:
        1.  Surfaces indicated on drawings.
        2.  Elevator pits, negative pressure side (inside).
        3.  Footings and foundation walls, negative pressure side
            (inside).
        4.  Footings and foundation walls, positive pressure side
            (outside).
        5.  Between mud slab and finish slab.
        6.  Potable water tanks, positive pressure side (inside).
        7.  Waste water tanks and flumes, positive pressure side
            (inside).
        8.  Salt water storage tanks, positive pressure side
            (inside).

1.2 RELATED SECTIONS
NOTE ** Delete any sections below not relevant to this
        project; add others as required.

    A.  Section 03300 - Cast-in-Place Concrete:  Placement of mud
        slab and finish slab.

1.3 REFERENCES

    A.  AASHTO T-259 - Resistance of Concrete to Chloride Ion
        Penetration; American Association of State Highway
        Officials.

    B.  ASTM C 109/C 109M - Standard Test Method for Compressive
        Strength of Hydraulic Cement Mortars (Using 2-in.  or (50
        mm) Cube Specimens).

    C.  ASTM C 321 - Standard Test Method for Bond Strength of
        Chemical-Resistant Mortars.

    D.  ASTM C 348 - Standard Test Method for Flexural Strength
        of Hydraulic Cement Mortars.

    E.  ASTM C 596 - Standard Test Method for Drying Shrinkage of
        Mortar Containing Portland Cement.

    F.  ASTM C 944 - Standard Test Method for Abrasion Resistance
        of Concrete or Mortar Surfaces by the Rotating-Cutter
        Method.

    G.  COE CRD-C 48 - Method of Test for Water Permeability of
        Concrete; U. S. Army Corps of Engineers.

    H.  NSF 61 - Drinking Water Systems - Health Effects; NSF
        International, Inc.

1.4 SUBMITTALS

    A.  Product Data:  Manufacturer's descriptive literature and
        product specifications for each product, include:
        1.  Laboratory tests or data that validate product
            compliance with the performance criteria specified.
        2.  Copy of test report with magnified photos
            demonstrating crystalline growth within the concrete.
        3.  Manufacturer's literature showing product's
            capability to post-seal cracks up to 0.012 inch (0.3
            mm) which appear after the application.
        4.  Copy of NSF certification for applications in
            connection with potable water.

    B.  Certification:  Manufacturer's written certification that
        proposed materials, details and systems as indicated and
        specified fully comply with manufacturer's details and
        specifications.  If any portion of Contract Documents do
        not conform to manufacturer's standard recommendations,
        submit notification of portions of design that are at
        variance with manufacturer's specifications.

1.5 QUALITY ASSURANCE
NOTE ** Include quality assurance requirements consistent
        with size and scope of project and extent of work
        of this section.  Edit article below accordingly.

    A.  Manufacturer Qualifications:  Company specializing in
        manufacturing Products specified in this Section with
        minimum 20 years documented experience.
        1.  ISO 9001 certified; submit copy of certificate.

    B.  Installer Qualifications:  Acceptable to manufacturer
        with documented experience on at least 5 projects of
        similar nature in past 5 years and/or training provided
        by the product manufacturer.

1.6 DELIVERY, STORAGE AND HANDLING

    A.  Deliver, store off the ground and covered, handle and
        protect products from moisture in accordance with
        manufacturer's instructions.

    B.  Deliver materials in manufacturer's unopened containers,
        fully identified with brand, type, grade, class and all
        other qualifying information.  Provide Material Safety
        Data Sheets for each product.

    C.  Take necessary precautions to keep products clean, dry
        and free of damage.

1.7 PROJECT CONDITIONS
NOTE ** Delete the following paragraph if not required.

    A.  Conduct a pre-installation meeting one week prior to
        commencing work to familiarize installers with project
        conditions and others with precautions to be taken after
        installation of waterproofing.

    B.  Coordinate waterproofing work with work of other trades.

    C.  Provide materials and accessories in timely manner so as
        not to delay work.

    D.  Maintain surfaces to be waterproofed and surrounding air
        temperature at not less than 40 degF (5 degC) for at
        least 48 hours before, during and after application of
        waterproofing.

    E.  Do not apply materials to frozen or frost-filled
        surfaces.

    F.  Exercise caution when temperatures exceed 90 degF (32
        degC).  It may be necessary to apply waterproofing during
        times when the sun is not at its strongest (i.e.  early
        morning, evening or night).
NOTE ** Coordinate length of warranty period below with
        adjacent construction and owner requirements to
        obtain unified system warranty.  Verify available
        warranty time periods from specified manufacturers.
        Edit article below to suit project conditions
        and/or owner's instructions.  If warranty period
        specified in General Conditions is sufficient,
        delete article below.

1.8 WARRANTY

    A.  Warrant installed waterproofing to be free of leaks and
        defects for _____ years from date of acceptance, with the
        exception of structural cracks in the waterproofed
        concrete which are 0.012 inch (0.3 mm) or wider.


PART 2  PRODUCTS

2.1 MANUFACTURERS

    A.  Provide products of Vandex Sales & Services, Inc.,
        Columbia, MD 21044-0440.  ASD.  Tel: [phone]; Fax:
        [phone]; e-mail: [e-mail].
NOTE ** Delete one of the two following paragraphs;
        coordinate with Division 01 requirements.

    B.  Requests for substitutions will be considered in
        accordance with provisions of Section 01600; include
        substantiation of product performance.

    C.  Substitutions:  Not permitted.

2.2 MATERIALS

    A.  Crystalline Waterproofing:  Blend of rapid-hardening
        portland cement, specially treated quartz sand and a
        compound of active chemicals, with the following
        characteristics:
        1.  Product: VANDEX SUPER.
        2.  Color:  Cement gray.
        3.  Aggregate:  Powder.
        4.  Potable Water Certification:  NSF (NSF Standard 61).
        5.  Permeability in accordance with CRD-C 48:  0.00
            cm/sec permeability at 210 psi (1.5 MPa) or 484 feet
            (148 m) over 20 days testing period on negative side.
        6.  Compressive Strength when measured in accordance with
            ASTM C 109:  10,200 psi (70.3 MPa) at 28 days.
        7.  Flexural Strength when measured in accordance with
            ASTM C 348:  730 psi (5.0 MPa) at 28 days.
        8.  Bond Strength when measured in accordance with ASTM C
            321: 690 psi (4.7 MPa) at 14 days.
        9.  Abrasion resistance when measured in accordance with
            ASTM C 944:  1.28 g (10 kg/sq ft on 4000 psi concrete
            at 28 days).
        10. Sulfate Resistance when measured in accordance with
            ASTM C 452: 0.0012 percent (28 days).
        11. Chloride Ion Penetration when measured in accordance
            with AASHTO T-259:  99.99 percent resistant at 1/4
            inch (6 mm), 100 percent at 1 inch (25 mm) depth.
        12. Bond of Reinforcement when measured in accordance
            with ASTM C 321:  No loss of bond due to waterproof
            ing material.

    B.  Water: Clean, clear, non-alkaline and free of salts and
        other harmful elements; potable.

2.3 ACCESSORY MATERIALS

    A.  Patching Compound:  Ready-mixed cementitious
        waterproofing and repair mortar recommended by
        waterproofing manufacturer for honeycombs, tie holes,
        seal strips (fillets/coves, reglets), etc., with the
        following characteristics:
        1.  Product: VANDEX UNI MORTAR 1 Z.
        2.  Compressive Strength when measured in accordance with
            ASTM C 109:  7600 psi (52.4 MPa) at 28 days.
        3.  Flexural Strength when measured in accordance with
            ASTM C 348:  700 psi (4.8 MPa) at 28 days.
        4.  Shrinkage when measured in accordance with ASTM C
            596:  Minus 0.093 percent at 28 days; plus 0.073
            percent at 120 days.

    B.  Patching Compound for Seal Strips in Contact with Potable
        Water:  Ready-mixed cementitious waterproofing and repair
        mortar recommended by waterproofing manufacturer for
        honeycombs, tie holes, seal strips (fillets/coves,
        reglets), etc., with the following characteristics:
        1.  Product: VANDEX MORTAR.
        2.  Compressive Strength when measured in accordance with
            ASTM C 109:  6900 psi (47.6 MPa) at 28 days.
NOTE ** The following paragraph applies only to
        installations that must hold potable water; i.e.
        drinking water.
        3.  Potable water certification:  NSF (NSF Standard 61).

    C.  Plugging Compound for Active Water Penetrations:
        Accelerating agent for capillary waterproofing products
        or pulverized rapid-setting cement.
        1.  Product: VANDEX QUICKBINDER or VANDEX PLUG.
        2.  Potable water certification:  NSF (NSF Standard 61).


PART 3  EXECUTION

3.1 EXAMINATION

    A.  Examine substrates and adjoining construction, and
        conditions under which work is to be installed.  Do not
        proceed with work until unsatisfactory conditions are
        corrected.

    B.  Verify the following substrate conditions before
        application of waterproofing:
        1.  That substrate condition is satisfactory and in
            accordance with manufacturer's instructions.
        2.  That concrete surfaces have open pores and wood float
            finish on horizontal surfaces.
        3.  That concrete surfaces are free of voids, spalled
            areas, loose aggregate and sharp protrusions, and
            with no coarse aggregate visible.
        4.  That curing compounds or surface hardeners
            incompatible with waterproofing have not been used on
            concrete.

3.2 PREPARATION

    A.  Protect adjacent surfaces not designated to receive
        waterproofing.

    B.  Remove concrete fins and projections and general surface
        dirt.

    C.  Remove grease, oil and other contaminants.  Use steam
        cleaning, high-pressure water blasting, wet or dry sand
        blasting, wire brush or other methods recommended by
        waterproofing manufacturer to produce surfaces suitable
        for application of waterproofing.

    D.  Follow manufacturer's instructions to clean and prepare
        surfaces and seal cracks and joints.

    E.  Rout out faulty construction joints and visible cracks
        not subject to movement that exceed 0.012 inch (0.3 mm)
        in width to approximately 3/4 inch (19 mm) width and
        minimum 3/4 inch (19 mm) depth.
        1.  Remove all protrusions, work back to sound concrete
            and chisel out any spalled or honeycombed areas.
        2.  Roughen form tie holes.
        3.  Stop water leakages according to manufacturer's
            plugging specifications.

    F.  Rinse surfaces to be waterproofed several times so that
        the concrete is thoroughly saturated.  Surfaces shall be
        moist but not wet when waterproofing system is applied.
        Remove any surface water on horizontal surfaces.

3.3 INSTALLATION

    A.  Mix waterproofing material in proportions recommended by
        manufacturer.

    B.  Apply waterproofing material in accordance with
        manufacturer's specifications and recommendations.

    C.  Cavity Fill:
        1.  Prime cavities at cleaned and prepared faulty
            construction joints, cracks, form tie holes, etc.
            with waterproofing material and fill flush to surface
            with patching compound in mortar consistency.
        2.  Laminate patching compound in 2 to 3 layers in
            accordance with manufacturer's instructions for
            larger spalled or honeycombed areas.
NOTE ** Use the seal strips/reglets in paragraph below in
        case no waterstops are used, or in addition to
        waterstops.  Delete if not required.

    D.  Horizontal and Vertical Construction Joints:  Prime seal
        strips/reglets in pre-formed 1 x 1 inch (25 x 25 mm)
        cavities with waterproofing material and fill flush to
        surface with patching compound in mortar consistency.
NOTE ** Delete any of the following methods that are not
        required on the project.
NOTE **
NOTE ** Use dry-sprinkle method for slabs exposed to
        mechanical wear or abrasion, such as in parking
        garages, waste water tanks, etc.).

    E.  Freshly Poured Slabs:  Dry-sprinkle waterproofing
        material to freshly poured slabs at 2.0 lb/sq yd (1 kg/sq
        m) and power trowel.

    F.  Over Mud Slab/Under Finish Slab:  Dry distribute to
        prewatered mud slab at 2.25 lb/sq yd (1.2 kg/sq m)
        immediately prior to casting the structural slab.

    G.  Existing Slabs:  Brush or spray apply waterproofing
        material in slurry consistency, in one coat on existing
        slabs.
        1.  For standard applications, apply at rate of 2.0 lb/sq
            yd (1 kg/sq m).
        2.  For applications in contact with salt or waste water,
            apply at rate of 2.5 to 2.8 lb/sq yd (1.4 to 1.5
            kg/sq m).
        3.  Spread material evenly and work it well into the
            surface.

    H.  Vertical Surfaces:
        1.  Apply base coat of waterproofing material in slurry
            consistency at uniform rate of 1.25 to 1.4 lb/sq yd
            (0.7 to 0.75 kg/sq m).  Apply using appropriate
            compressed-air spray equipment, stiff masonry brush
            or stiff broom.
        2.  After base coat has reached initial set but is still
            "green" (tacky), apply finish slurry coat of
            waterproofing mixture at 1.25 to 1.4 lb/sq yd (0.7 to
            0.75 kg/sq m).  Apply so that final brush or broom
            strokes leave parallel, uniform texture.

3.4 CURING

    A.  Follow manufacturer's general instructions for curing and
        hardening of waterproofing material.

    B.  Protect surfaces from rain, frost and drying out.
NOTE ** Include the paragraph below if waterproofing is to
        be overcoated with paint, epoxy or tile mortar.

3.5 PREPARATION FOR DECORATION, COATING AND TILING

    A.  Cure surfaces treated with crystalline waterproofing that
        are to be coated, painted or tiled for 4 weeks.
        1.  At the end of the curing period, saturate surfaces
            with water and neutralize with a 1:8 solution of
            muriatic acid.
        2.  Rinse waterproofed areas thoroughly with water.
NOTE ** The following article applies only to water tanks,
        reservoirs, marine aquariums, etc.  Edit test time
        period as required.

3.6 ADJUSTING

    A.  Following application and completion of related work, as
        required, but well prior to completion of entire project,
        fill tanks to capacity and allow to stand not less than 2
        weeks.

    B.  If any leaks appear during this period, drain tanks.
        Notify Owner prior to draining tanks.

    C.  Stop leakage due to curing and shrinkage cracks by
        installing plugs, seal-strips and additional surface
        treatment at no additional cost to the Owner.
        1.  Following all required repairs, re-test by refilling
            tank and allow to stand not less than 1 week.
        2.  Follow this procedure until all leakage is
            eliminated.
NOTE ** The following paragraph is optional because it may
        not be the responsibility of the installer of the
        waterproofing.

    D.  Thoroughly rinse all tanks and reservoirs with water and
        with 100 ppm chlorine water solution.

3.7 CLEANING

    A.  Remove materials left over and any foreign material
        resulting from the work from the site.

    B.  Clean adjacent surfaces and materials.

                         END OF SECTION