CSI Master Format Specifications

Kryton International Inc.

SECTION 07162

Hydrophilic Crystalline Waterproofing for Concrete - Broadcast Application for Freshly Placed Concrete

*ATTENTION SPECIFIER *  This section details the use of Krystol Broadcast for freshly placed concrete flatwork as manufactured by Kryton International Inc., which is located at:

    1645 Kent Avenue East
    Vancouver BC V5P 2S8
    Tel:  (800) 267-8280
    Te1:  (604) 324-8280
    Fax:  (604) 324-8899
    E-mail: info@kryton.com
    www.kryton.com
 
Kryton products waterproof concrete by a chemical process that develops insoluble hydration crystals called “Krystol” in the capillary pores of concrete.  This section outlines the use of Krystol Broadcast, which is applied to freshly placed concrete as a dry-shake and worked into the concrete surface during final finishing.  Krystol is also available as an admixture as described in section 03305 and Technical Bulletin 301.  Additional applications for Krystol include:   A brush-on surface treatment for existing concrete called Krystol T1/T2 (Section 07162 and Technical Bulletins 101, 102 and 170) and The Krystol Waterstop System for non-moving construction joints (section 03152 and Technical Bulletins 103 and 104).

Krystol Broadcast is intended for concrete flatwork and is best suited for thick slabs that will be powder troweled during final finishing.  Krystol Broadcast results in a smooth surface finish suitable for typical traffic or the application of common floor finishes.

PART 1 - GENERAL

1.1 SECTION INCLUDES
*ATTENTION SPECIFIER*  Edit section “C” as required for the project.

A. Waterproofing of concrete by dry shake treatment with hydrophilic crystalline material – Furnish labor, materials, equipment and services as necessary for the supply and application of Krystol Broadcast cementitious waterproofing treatment to concrete flatwork as specified herein.

B. Provide all written materials and site services necessary to complete the installation as herein specified.

1.2 RELATED SECTIONS
*ATTENTION SPECIFIER*  Edit to add or remove sections as required for the project.

A. Section 03300 – Cast-in-Place Concrete. Concrete surfaces.

B. Section 03350 – Concrete Finishers

C. Section 03152 – Concrete Joint Control

1.3 REFERENCES
*ATTENTION SPECIFIER*  Delete references not required for the final specification.

A. ACI 305R - Hot Weather Concreting; 1999.

B. ACI 306R - Cold Weather Concreting; 1988.

C. ACI 308 - Standard Practice for Curing Concrete; 1992 (Reapproved 1997).

D. ASTM C 309 - Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete; 1998a.

E. COE CRD-C 48 - Standard Test Method for Water Permeability of Concrete; 1992.

F. NSF 61 - Drinking Water System Components - Health Effects; 2000a.

1.4 SUBMITTALS

A. Certificates of Conformance or Compliance: before delivery of the materials a copy of the manufacturer’s certificates, attesting that materials meet the requirements specified, shall be submitted to and approved by the contracting officer.

B. Product Literature: Manufacturer’s descriptive product literature shall be submitted and shall consist of detailed specifications, available performance test data, surface preparation instructions and application instructions.

C. Certified Laboratory Test Reports – Before delivery of materials, copies of the reports of all tests specified herein or in reference publications shall be submitted to and approved by the contracting officer.

D. Test reports shall be accompanied by certificates from the manufacturer certifying that the previously tested material is of the same type, quality and make as that proposed for this project.

E. References: Product must have a history of over 10 years of successful use and must be accompanied by a list of job sites of a similar nature.

1.5 QUALITY ASSURANCE

A. Supply waterproofing and related materials manufactured by Kryton International Inc., 1645 East Kent Avenue, Vancouver BC, V5P 2S8.  Tel: (604) 324-8280 or other licensed manufacturing facility.

B. Installer/Applicator shall be an experienced installer approved by the manufacturer or by a non-approved installer under direct supervision a manufacturer’s representative or an independent materials engineering company.

C. Prior to installation, hold a meeting of all relevant parties required for successful installation of waterproofing products to verify installation methods and warranty requirements.  Relevant parties may include the waterproofing installer, installers of adjacent work or work penetrating waterproofing, manufacturer’s representative and project engineer/architect.

1.6 DELIVERY, STORAGE AND HANDLING

A. Deliver materials in manufacturer's original, unopened, undamaged packages bearing the manufacturer’s name, brand designation and batch number.

B. Store materials in a dry storage area to avoid contact with moisture..

1.7 WARRANTY

a. Provide manufacturer’s standard warranty document authorized by manufacturer’s representative for 10 year material warranty from date of substantial completion.

PART 2 - PRODUCTS

2.1 MANUFACTURER

A. Manufacturer: Kryton International Inc. located at: 1645 Kent Avenue East, Vancouver BC V5P 2S8; Toll Free Tel: 800-267-8280; Tel: 604-324-8280; Fax: 604-324-8899; Email: info@kryton.com; Web: www.kryton.com

B. Obtain all crystalline waterproofing products from a single source.

C. Substitutions:  Not permitted.

2.2 MATERIALS

A. Concrete Flatwork Waterproofing:  Dry shake application on fresh concrete, Krystol Broadcast, proprietary compound consisting of cement, quartz silica and active ingredients to promote growth and penetration of hydrophilic hydration crystals in the concrete capillaries.

B. Waterproofing material shall contain a non toxic, fugitive dye that provides visual verification of uniform coverage and incorporation of the waterproofing product.  The dye shall completely fade 15-45 minutes after application due to UV radiation and alkaline conditions.

C. Waterproofing materials shall not contain chlorides.

D. The waterproofing materials shall not provide waterproofing by way of hydrophobic ingredients such as oils, stearates, silanes, silicate salts or other hydrophobic treatment.  Manufacturer must certify in writing the absence of these materials.

E. Waterproofing materials shall be installed on concrete flatwork with a minimum design strength of 27 MPa, a water-to-cement ratio not above 0.5 and an air content not above 4.0%.

F. Waterproofing Treatment:  Provide installed products that comply with the following when installed according to the manufacturer’s written procedures to an approved concrete mix design.

1. Penetration:  At least 4 inches (100 mm) penetration of crystal material, evidenced by independent microscopic analysis.
2. Potable Water Contact Approval:  NSF certification for use on structures holding potable water, based on testing in accordance with NSF 61.

PART 3  EXECUTION

3.1 General

A. Safety precautions shall conform to the manufacturer’s MSDS and all local regulations.

B. Comply with Technical Bulletin #205.

C. Newly placed concrete should be free of bleed water and have reached sufficient strength to support the weight of a power trowel.

D. Float open surface, then immediately apply Krystol Broadcast evenly over the fresh concrete.

E. Coverage is 1Kg/m2.

F. As soon as the Krystol Broadcast powder has absorbed moisture from the concrete surface and the fugitive dye has started to dissolve, finish the concrete surface and incorporate the Krystol Broadcast into the surface during the finishing process.

G. Visually check for uniform colour distribution and intensity of the fugitive dye to ensure even application and incorporation of the Krystol Broadcast.  Colour will fade in 15-45 minutes from UV radiation and alkali conditions.

H. Moist cure concrete in accordance with ACI 308 for 5-7 days; if moist curing is not possible, use curing compound complying with ASTM C 309.

3.2      Construction Joints:

A. Construction joints are to be waterproofed using the Krystol Waterstop System consisting of Krystol Waterstop Grout and Krystol Waterstop Treatment as described in Section 03152 and Kryton Technical Bulletins #103 and #104.

3.3       FIELD QUALITY CONTROL

A. Manufacturer's Site Services:  Provide manufacturer's site services consisting of product recommendations and site visits to verify installation procedures when required by manufacturer.

B. Do not cover Krystol Broadcast treated concrete with other construction until it has been approved by the project architect/engineer.

*ATTENTION SPECIFIER*  Not all applications will be possible or relevant to water test.  Measure change in water level to determine if leaks exist if leaks cannot be directly observed.  Delete this section of not required.

1. Where applicable, water test structures capable of holding water for 24 hours after conclusion of curing period.  Repair identified leaks and repeat water testing until structure is watertight.

3.4       CLEANING AND PROTECTION

A. Do not apply paint or other coatings for at least 28 days.

END OF SECTION

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