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	SECTION 07160
	HYDROPHYLIC CRYSTALLINE WATERPROOFING
	** NOTE TO SPECIFIER ** Kryton International, Inc.; Crystalline Waterproofing. . This section is based on the products of Kryton International, Inc., which is located at: 1645 E. Kent Ave. Vancouver, BC, Canada V5P 2S8. Tel: (800) 267-8280 Tel: (604) 324-8280. Fax: (604) 324-8899. Email: info@kryton.com. Web: 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 the following products for new construction: . - KIM (Krystol Internal Membrane) - waterproofing admixture for concrete. - Krystol Broadcast - waterproofing dry shake treatment for concrete flatwork. - Krystol Waterstop System - system for waterproofing non-moving construction joints consisting of Krystol Waterstop Grout (KWG) Krystol Waterstop Treatment (KWT). - Crack Repair System consisting of Krystol Plug, Krystol T1/T2 and Krystol Baricote. . Two versions of the admixture are available: KIM (Krystol Internal Membrane), which typically provides 2-5 percent air entrainment, and KIM-HS with minimal air entrainment. Throughout this specification the admixture is called KIM, but may refer to KIM or KIM-HS depending on the requirements of the project. Edit this specification for KIM or KIM-HS as appropriate. . KIM produces waterproof concrete able to resist high hydrostatic pressure and can replace the use of conventional waterproofing membranes for below grade concrete. Krystol chemicals remain active for the life of the concrete, and allow for "self-sealing" of cracked, leaking concrete up to 0.5mm. KIM also promotes increased workability and higher compressive strength. KIM is approved for use by NSF International for use in potable water and ICC-ES for use as a Chemical Admixture for Concrete. . The Krystol Waterstop System for non-moving construction joints can be installed using one of two methods: Internal installation for wall-to-slab joints where the system is completely encased by concrete, and external installation for wall-to-wall, slab-to-slab, or slab-to-wall joints where the concrete is cast with a keyway built into the formwork leaving an open space which is later packed with the Waterstop materials. The components of the internal system are color coded to allow for easy visual inspection prior to being covered with concrete. . The combined system of KIM admixture and the Krystol Waterstop System can produce watertight structures while saving time and money compared to traditional membranes and joint systems. . Krystol Broadcast is intended for concrete flatwork and is best suited for thick slabs that will be power troweled during final finishing. Krystol Broadcast results in a smooth surface finish suitable for typical traffic or the application of common floor finishes. .Krystol waterproofing products can be used above and below grade, and are especially useful for reservoirs, sewage and water treatment plants, secondary containment units, tunnels and subway systems, underground vaults, foundations, parking structures, swimming pools, precast concrete components or any application that requires waterproof, durable concrete. . Krystol treated concrete should be cured for a minimum of 28 days before applying any coating. The coating contractor is ultimately responsible for assessing the suitability of the concrete for painting and performing all necessary surface preparation.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Concrete Waterproofing Admixture Systems.
		B.	Concrete Waterproofing Surface Treatments.
		C.	Concrete Crack Repair Systems.
		D.	Waterstop Systems.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 03300 - Cast-In-Place Concrete; Concrete walls and slabs to receive waterproofing.
		B.	Section 03400 - Precast Concrete; Precast concrete to receive waterproofing.
		C.	Section 07920 - Joint Sealants; Backer rods, joint fillers and related repair materials.
	1.3	REFERENCES
	** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
		A.	AASHTO T277 - Standard Method to Test for Rapid Determination of Chloride Permeability of Concrete.
		B.	ACI 305R - Hot Weather Concreting; 1999.
		C.	ACI 306R - Cold Weather Concreting; 1988.
		D.	ACI 308 - Standard Practice for Curing Concrete; 1992 (Reapproved 1997).
		E.	ASTM C 39/C 39M - Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens; 1999.
		F.	ASTM C 309 - Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete; 1998a.
		G.	ASTM C 666 - Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing; 1997.
		H.	ASTM E 329 - Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction; 1998a.
		I.	BS 5075-2: 1998 - Concrete Admixtures: Specification for Air Entraining Admixtures.
		J.	COE CRD-C 48 - Standard Test Method for Water Permeability of Concrete; 1992.
		K.	NSF 61 - Drinking Water System Components - Health Effects; 2000a.
	1.4	PERFORMANCE REQUIREMENTS
		A.	Addition of waterproofing admixture to a pre-approved mix design must be performed by a concrete ready-mix supplier approved by the manufacturer. Addition by a non-approved concrete supplier must be under direct supervision of a manufacturer's representative or independent materials engineering company.
		B.	Concrete waterproofing admixture must comply with CAN/CSA A266 - 1-M in the latest addition as both a WR type water reducing admixture and optionally as an air entraining admixture and ASTM C 494 and as a Type D, water-reducing set retarding admixture.
		C.	Waterproofing admixture must be certified by the International Code Council (ICC) as a Chemical Admixture Used in Concrete (AC198).
		D.	Waterproofing admixture must hold a valid Agrement Certificate from the British Board of Agrement.
		E.	The waterproofing materials must not contain chlorides or hydrophobic materials such as oils, stearates, silanes, silicate salts or other hydrophobic treatment. Manufacturer must certify in writing the absence of these materials.
	1.5	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		B.	Product Data: Manufacturer's data sheets on each product to be used, including:
			1.	Preparation instructions and recommendations.
			2.	Storage and handling requirements and recommendations.
			3.	Installation methods.
		C.	Certificates of Conformance or Compliance: Submit a copy of the manufacturer's certification, attesting that materials meet the requirements specified.
		D.	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.
			1.	Accompany test results with 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.	Shop Drawings: Submit shop drawings detailing the appropriate joining procedures. Coordinate shop drawings with the Contract Documents.
		F.	References: Submit documentation of over 15 years of successful use accompanied by a list of projects of similar type and scope.
	1.6	QUALITY ASSURANCE
		A.	Manufacturer Qualifications: All primary products specified in this section will be supplied by a single manufacturer with a minimum of fifteen (15) years experience.
		B.	Installer Qualifications: All products listed in this section are to be installed by installers approved by the manufacturer or manufacturer's representative. Installers must have a minimum of five (5) years demonstrated experience in installing products of the same type and scope as specified. All concrete containing waterproofing admixtures must be supplied by a single concrete supplier. All jointing must be installed by a single installer. All repair of concrete cracks and defects must be performed by a single installer.
		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(s), installers of adjacent work or work penetrating waterproofing, site supervisor, manufacturer's representative and project engineer/architect.
	1.7	DELIVERY, STORAGE, AND HANDLING
		A.	Store products in manufacturer's original unopened packaging until ready for installation.
		B.	Store and dispose of hazardous materials, and materials contaminated by hazardous materials, in accordance with requirements of local authorities having jurisdiction.
	1.8	PROJECT CONDITIONS
		A.	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 absolute limits.
	1.9	WARRANTY
		A.	At project closeout, provide to Owner or Owner's Representative an executed copy of the manufacturer's standard warranty document authorized by manufacturer's representative.
	** NOTE TO SPECIFIER ** KIM treated concrete with the Krystol Waterstop System installed in all non-moving joints carries a 25 year material warranty. Krystol Broadcast treated slabs with the Krystol Waterstop System carries a 10 year material warranty. Delete one of the next two paragraphs,
			1.	Duration: Ten (10) years from date of substantial completion.
			2.	Duration: Twenty-Five (25) years from date of substantial completion.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Kryton International Inc., which is located at: 1645 E Kent Ave. N. ; Vancouver, BC, Canada V5P 2S8; Toll Free Tel: 800-267-8280; Tel: 604-324-8280 ; Fax: 604-324-8899 ; Email: request info; Web: www.kryton.com
	** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
		B.	Substitutions: Not permitted.
		C.	Requests for substitutions will be considered in accordance with provisions of Section 01600.
	2.2	SCOPE / APPLICATION
	** NOTE TO SPECIFIER ** Retain only applications specified on this project and delete all others.
		A.	Crystalline waterproofing admixture - Furnish labor, materials, equipment and services as necessary for the supply and use of KIM - hydrophilic, crystalline admixture that when added to the plastic mix will permanently waterproof hardened concrete by way of chemically promoting the growth of insoluble hydration crystals in the capillary pores.
		B.	Crystalline waterproofing dry shake - Furnish labor, materials, equipment and services as necessary for the supply and application of Krystol Broadcast - hydrophilic crystalline dry-shake containing a fugitive dye for waterproofing concrete flatwork by promoting the growth of insoluble hydration crystals in the capillary pores.
		C.	Crystalline waterproofing joint system - Furnish labor, materials, equipment and services as necessary for the supply and installation of the Krystol Waterstop System consisting of Krystol Waterstop Grout and Krystol Waterstop Treatment, for all non-moving construction joints to provide waterproofing by growth and penetration of insoluble hydration crystals into the capillary pores.
		D.	Crystalline crack repair system - Furnish labor, materials, equipment and services as necessary for the repair of concrete cracks and defects utilizing the Krystol Crack Repair System consisting of the crystalline components; Krystol Plug, Krystol Bari-cote, Krystol T1 and Krystol T2.
		E.	Provide all written materials, concrete mix design and site services necessary to complete the installation as herein specified.
	** NOTE TO SPECIFIER ** Delete the entire next article if Waterproofing Admixture Treatments are not required. Retain only products to be used on this project.
	2.3	CONCRETE WATERPROOFING ADMIXTURE SYSTEMS
		A.	KIM - Krystol Internal Membrane: Permanent, self-sealing, corrosion-free, concrete waterproofer used for the treatment of concrete and concrete products to protect against water intrusion, leakage, cracking, chemical attack, and corrosion of reinforcing steel.
	** NOTE TO SPECIFIER ** Select Admixture type. KIM entrains 2-5 percent air. KIM HS has minimal air entrainment properties and is designed for applications where air entrainment is not required. Delete one of the next two paragraphs.
			1.	Type: KIM (K-300).
			2.	Type: KIM HS (K-301).
			3.	Physical Properties:
				a.	Color: Gray.
				b.	Texture: Powder.
				c.	Particle Size: 40-150 Microns.
				d.	Relative Bulk Density: 1.4.
				e.	Specific Gravity: 2.8.
			4.	Performance when supplied mixed into concrete by an approved ready-mix supplier according to the manufacturers written instructions:
				a.	Krystol Growth: Evidenced by scanning electron microscope photographs comparing KIM treated concrete to untreated concrete.
				b.	Permeability: No measurable leakage when tested in accordance with COE CRD-C 48 at 140 m (460 feet) of head or 1400 kPa (203 psi).
				c.	Chemical Resistance: Minimum 20 percent less weight loss compared to untreated specimen after exposure to 5 percent sulfuric acid for 70 days.
				d.	Compressive Strength: At least 10 percent increase in strength compared to samples prepared without admixture, when tested at equal air and slump in accordance with ASTM C 39/C 39M after 28 days.
				e.	Chloride Penetration Resistance: Rating of Low to Very Low for KIM treated concrete when tested using AASHTO T277.
				f.	Drying Shrinkage: Minimum 20 percent reduced drying shrinkage compared to untreated concrete when tested according to BS 1881-5.
				g.	Self Sealing: Enhanced autogenous crack sealing of concrete compared to untreated concrete up to 0.5mm (0.02 inches).
				h.	Carbonation Resistance: No increase in rate of carbonation compared to untreated concrete when exposed to a 4 percent carbon dioxide atmosphere for 28 days.
				i.	Sulfate Resistance: Improved resistance to sulfate attack compared to untreated concrete when tested to the US Bureau of Reclamation Accelerated Method.
				j.	Potable Water Contact Approval: NSF certification for use on structures holding potable water, based on testing in accordance with NSF 61.
	** NOTE TO SPECIFIER ** Delete the entire next article if Waterproofing Surface Treatments are not required. Retain only products to be used on this project.
	2.4	CONCRETE WATERPROOFING SURFACE TREATMENTS
		A.	Krystol Broadcast: Crystalline waterproofing treatment for concrete flatwork applied dry to the fresh concrete surface and troweled into the concrete during the final finishing. Penetrates deeply into the concrete mass protecting it against the passage of water.
				a.	Type: K-250.
				b.	Color: Gray.
				c.	Texture: Powder.
				d.	Particle Size: 40-150 Microns.
				e.	Relative Bulk Density: 1.3.
				f.	pH (When Mixed): 12-13.
				g.	Shelf Life: 2 Years.
				h.	Marker - contains green fugitive dye to verify uniform coverage and incorporation. Dye fades within 15-45 minutes exposure to UV and fresh concrete.
	** NOTE TO SPECIFIER ** Delete the entire next article if Crack Repair systems are not required. Retain only products to be used on this project.
	2.5	CONCRETE CRACK REPAIR SYSTEMS
		A.	Krystol T1 and Krystol T2: Cementitious, brush-applied, treatment for concrete. T1 is applied to the concrete followed by Krystol T2. Krystol reacts chemically within the concrete mass to form needle-like crystals which block the pores, voids and micro-cracks in concrete. Pre-saturation and subsequent re-wetting of the surface will cause deeper diffusion of the organic chemicals and formation of crystals at greater depth.
			1.	Krystol T1:
				a.	Type: K-210.
				b.	Color: Gray.
				c.	Texture: Powder.
				d.	Particle Size: 40-150 Microns.
				e.	Relative Bulk Density: 1.4.
				f.	pH (When Mixed): 12-13.
				g.	Rate of Penetration: 0.08 inches (2mm) per week.
				h.	Water Pressure Resistance: 492 foot (150m) Head.
				i.	Chloride Penetration - 0.625 inches (15 mm) below surface after 90 days ponding with aqueous Calcium Chloride: 0.009 percent.
			2.	Krystol T2:
				a.	Type: K-220.
				b.	Color: Gray.
				c.	Texture: Powder.
				d.	Particle Size: 40-150 Microns.
				e.	Relative Bulk Density: 1.35.
				f.	pH (When Mixed): 12-13.
				g.	Shelf Life: 2 Years.
		B.	Krystol Plug: Mixed with water, to immediately arrest the seepage or flow of water through concrete cracks. Sets to a completely waterproof seal within 2 minutes and continues to harden until its strength exceeds that of the concrete onto which it has been applied.
			1.	Type: K-620.
			2.	Color: Dark Gray.
			3.	Texture: Coarse Powder.
			4.	Relative Bulk Density: 1.4.
			5.	pH (When Mixed): 12-13.
			6.	Solubility in Water: Insoluble.
			7.	Compressive Strength (After 7 Days): 50 Mpa.
		C.	Krystol Bari-cote: Fast-setting waterproof grout for repairing leaking cracks, holes and joints in concrete. Contains special ingredients that react chemically with concrete to form needle shaped hydration crystals. These crystals grow deep into the capillary pores of the grout and surrounding concrete to block the passage of water.
			1.	Type: K-315.
			2.	Color: Gray.
			3.	pH (When Mixed): 12-13
			4.	Working Time: 30 minutes.
			5.	Setting Time: 60 minutes.
			6.	Water pressure resistance - (CRD C48-92): 200psi (1.38MPa).
			7.	Compressive Strength (ASTM C-109):
				a.	2 hours: 1000 psi (7 MPa).
				b.	6 hours: 1600 psi (11 MPa).
				c.	24 hours: 3000 psi (21 MPa).
				d.	7 days: 4400 psi (30 MPa).
				e.	28 days: 6500 psi (45 MPa).
	** NOTE TO SPECIFIER ** Delete the entire next article if Waterstop systems are not required. Retain only products to be used on this project.
	2.6	WATERSTOP SYSTEMS
		A.	Krystol Waterstop Grout: For creating concrete construction joints that are permanently waterproof. Combines chemically with water and concrete to form needle-shaped crystals that grow in all directions to fill any capillary pores, cracks and joints that can allow water to pass.
			1.	Type: K-322.
	** NOTE TO SPECIFIER ** Select Color depending on internal or external installation of Waterstop. Consult section 3.3-C and 3.3-D for selection of internal or external installation. Delete one of the next two paragraphs.
			2.	Color: Red (K-322i) for internal jointing.
			3.	Color: Gray (K322x) for external jointing.
			4.	Texture: Powder.
			5.	Relative Bulk density 1.4.
			6.	PH (when mixed): 12-13.
			7.	Vertical Water Column Resistance: 1,148 feet (350m).
			8.	Working Time: 25 Minutes.
			9.	Hardening Time: 1-2 hours.
			10.	Compressive strength (ASTM C-109):
				a.	2 hours: 4.8 MPa.
				b.	48 hours: 20.7 MPa.
				c.	7 days: 43.4 MPa.
				d.	28 days: 46.2 MPa.
				e.	Lineal change 24 hours: +0.21 percent.
				f.	3 days: +0.32 percent.
				g.	7 days: +0.32 percent.
				h.	28 days: +0.32 percent.
		B.	Krystol Waterstop Treatment: For creating concrete construction joints that are permanently waterproof. Combines chemically with water and concrete to form needle-shaped crystals that grow in all directions to fill any capillary pores, cracks and joints that might otherwise allow water to pass.
			1.	Type: K-321.
			2.	Color: Gold / Yellow.
			3.	Texture: Powder.
			4.	Relative Bulk density 1.48.
			5.	PH (when mixed): 12-13.
			6.	Vertical Water Column Resistance: 1,148 feet (350m).
			7.	Working Time: 45 Minutes.
			8.	Hardening Time: 2-4 hours.
			9.	Penetration - Crystal growth to a minimum depth of 4 inches from the treated surface.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Do not begin installation until work areas have been properly prepared.
		B.	If surface preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
	3.2	PREPARATION
		A.	Prepare materials using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
		B.	Safety precautions must conform to the manufacturer's MSDS and all local regulations.
		C.	All work surfaces must be clean and free of laitance, oil, dirt, paint or other foreign material.
		D.	All work surfaces must be thoroughly soaked with clean water to a surface saturated dry condition (SSD) when installing the Krystol Waterstop System or components of the Krystol Crack Repair System.
	3.3	APPLICATION
		A.	Waterproofing Admixture: KIM
			1.	Comply with requirements of Section 03300.
			2.	Comply with Kryton Technical Bulletins #301-307 where applicable.
	** NOTE TO SPECIFIER ** KIM and KIM-HS admixtures normally function as set retarders. The amount of retardation will depend upon many factors including the concrete mix design, batching procedures, temperature conditions and compatibility with other chemical admixtures. KIM acts as an air entrainer. If air entrainment is not required, use KIM-HS. Trial batches are recommended.
			3.	Safety precautions shall conform to the manufacturer's MSDS, printed literature and all current regulations.
			4.	Design concrete mixture in accordance with the standard recommended practices for selecting proportions for concrete; ACI 211.
			5.	Add KIM to the pre-approved mix design in the plastic state at a rate of 2 percent of the cementitious content (including all supplementary cementitious materials) to a maximum of 8 Kg per cubic meter (13.5 lbs per cubic yard) at the ready-mix plant or when pre-approved by the manufacturer added at the job site. Measure KIM admixture in addition to the total weight of the cementitious materials.
			6.	Mix KIM into the concrete for a minimum of 10 minutes before placing.
			7.	Provide concrete with a maximum water-to-cementing materials ratio of 0.45 proportioned to meet all other structural and exposure criteria cited elsewhere in the documents. The Portland cement content shall not be less than 250 Kg per cubic meter (420 lbs per cubic yard).
			8.	Provide Shotcrete with a maximum water-to-cementing materials ratio of 0.40. Shotcrete shall be applied according to ACI 506R Guide to Shotcrete by an ACI approved nozzelman who is qualified in the shooting method employed and has passed jobsite prequalification testing.
			9.	Trial mixes made under typical project conditions are to be used to determine that the setting time, slump, air content and compressive strength of the concrete are suitable for the project.
			10.	Follow ACI guidelines when placing concrete in extreme temperature conditions; follow ACI 305R for hot weather concreting and ACI 306R for cold weather concreting. Monomolecular films (evaporation retardants) are recommended for slabs during conditions prone to rapid evaporation (hot, dry, or windy conditions).
			11.	Notwithstanding other requirements, the concrete and jointing shall be cured and protected in accordance with CSA A23.1-21.1.4, ACI 308-92 or where applicable an international equivalent. If moist curing is not possible, use a curing compound complying with ASTM C309.
		B.	Waterproofing Dry Shake For Concrete Flatwork: Krystol Broadcast
			1.	Safety precautions shall conform to the manufacturer's MSDS and all local regulations.
			2.	Comply with Kryton Technical Bulletin #205.
			3.	Krystol Broadcast 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 percent.
			4.	Newly placed concrete should be free of bleed water and have reached sufficient strength to support the weight of a power trowel.
			5.	Float open surface, then immediately apply Krystol Broadcast evenly over the fresh concrete.
			6.	Coverage is 1Kg/sm.
			7.	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.
			8.	Visually check for uniform color distribution and intensity of the fugitive dye to ensure even application and incorporation of the Krystol Broadcast. Color will fade after 15-45 minutes from UV radiation and alkali conditions.
			9.	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.
	ATTENTION SPECIFIER*The use of "Internal" or "External" installation will depend on the design of the joint as described below. Note that Waterstop Grout Internal (K-322i) and Waterstop Grout External (K-322x) are separate products and are not interchangeable. For detailed installation procedures, consult Technical Bulletins #103 and #104.
		C.	Krystol Waterstop System For Non-Moving Construction Joints: Wall-To-Slab Joints (Internal Method):
			1.	Mix and install the Krystol Waterstop System in all non-moving construction joints according to Kryton Technical Bulletin #103.
			2.	Apply Krystol Waterstop Grout (K322i) in center of joint area in a triangular strip. If reinforcing bar is present, install as close to the center and possible.
			3.	Place plastic grout with 2 inch (50mm) margin trowel. Follow with Kryton Triangle Trowel or similar tool to form a continuous strip of peaked material.
			4.	The triangular strip of Grout will have straight angles and sides and measure 2 inches at the base by at least 1.25 inches in height (50x30mm). Usage is 15m installed material per 25Kg (1-pail).
			5.	Apply slurry of Krystol Waterstop Treatment after Grout has reached sufficient strength not be damaged by application of Treatment. Apply Treatment with a stiff bristled brush employing a circular, scrubbing motion to achieve maximum contact and penetration.
			6.	Spreading rate of Krystol Waterstop Treatment slurry is 1 Kg/sm (3 lineal meters per 1Kg for a 30 cm wide slurry). Apply Krystol Waterstop Treatment to the entire width of the joint and cover the previously installed Krystol Waterstop Grout.
			7.	Forms may be closed immediately after inspection. Protect the completed Krystol Waterstop System from rain, freezing or rapid evaporation for a minimum of 12 hours or until covered by concrete.
		D.	Krystol Waterstop System For Non-Moving Construction Joints: Wall-To-Wall, Slab-To-Slab And Slab-To-Wall Joints (External Method):
			1.	Mix and install the Krystol Waterstop System in all non-moving construction joints according to Kryton Technical Bulletin #104.
			2.	Krystol Waterstop Treatment:
				a.	Apply Krystol Waterstop Treatment to the entire contact area where the two pours will meet. Apply Treatment with a stiff bristled brush employing a circular, scrubbing motion to achieve maximum contact and penetration.
				b.	Spreading rate for slurry of Krystol Waterstop Treatment is 1 Kg/sm (3 lineal meters per 1Kg for a 30 cm wide slurry).
				c.	Protect application from rain, freezing conditions and rapid evaporation for 48 hours or until concrete is poured over it.
			3.	Krystol Waterstop Grout:
				a.	Form a keyway to intersect the joints. A suitable keyway may be made from a dressed 2 by 2 by trimming one edge so it tapers to 1.25 inches (40x40mm tapered to 30mm). Do not use release agents on the keyway form.
				b.	Keyway may be pressed into horizontal surfaces at the joint or attached to vertical formwork prior to pouring concrete.
				c.	Remove keyway forming material from hardened concrete.
				d.	Keyway must be clean and of free of release agents, debris and laitance. Soak Keyway to Surface Saturated Dry Condition (SSD). Do not leave standing water.
				e.	Pack keyway with Krystol Waterstop Grout (K-322x) per manufacturer's written procedures. Usage is 7.5m installed material per 25Kg (1-pail).
				f.	Protect the application from rain, freezing conditions and rapid evaporation for 24 hours.
		E.	Krystol Crack Repair System For Cracks And Defects:
			1.	Repair leaking cracks that do not self-seal in the time required by other construction, or are larger than 0.5mm (0.02 inches) according to Kryton Technical Bulletin #101.
				a.	Mechanically chase out cracks to 1 inch (25mm) wide and 1.5 inches (38mm) deep. Careful attention must be taken to ensure the chase is square or "U" shaped and not "V" shaped.
				b.	Fill first 1/3 of chase with grouting mortar, Krystol Plug.
				c.	Fill second 1/3 of chase with dry pack of Krystol T1.
				d.	Fill final 1/3 of chase with waterproof cap, Krystol Bari-cote.
				e.	Apply a slurry coat of Krystol T1 over the repaired crack extending 150 mm (6 inches) on either side of the crack. After Krystol T1 has set, apply a slurry coat of Krystol T2 over the Krystol T1.
			2.	Rock Pockets, Honeycombing and tie Holes: Repair per Technical Bulletin #180.
				a.	Rout out defective areas to sound concrete.
				b.	Remove loose material and saturate with water.
				c.	If defect is actively leaking, install rapid setting grout, Krystol Plug to a max depth of 1/3 of the defect.
				d.	Fill defect with waterproof capping material, Krystol Bari-cote.
			3.	Pipe Penetrations: Repair as per Technical Bulletin #204A.
				a.	Mechanically chase out around the pipe to 1 inch (25mm) wide and 1.5 inches (38mm) deep. Alternatively, pre-form chase with a flexible forming material.
				b.	Metal pipes - remove all oil, corrosion or other surface contaminates. Sand blast to achieve a coarse surface profile.
				c.	PVC or ABS pipes - apply joint cement (glue) to surface of pipe and cast silica sand into the wet joint cement. Allow joint cement to harden and remove excess silica sand.
				d.	Fill the chase with Krystol Waterstop Grout (Gray)
				e.	Apply slurry of Krystol Waterstop Treatment over Krystol Waterstop Grout extending 150mm (6 inches) from the pipe.
	3.4	FIELD QUALITY CONTROL
		A.	Manufacturer's Site Services: Provide manufacturer's site services consisting of product recommendations and site visits to verify batching and installation procedures when required by manufacturer.
		B.	Do not cover the Krystol Waterstop System with concrete until it has been observed by manufacturer's field representative or Architect/Engineer.
		C.	Inspection in two stages:
			1.	Following the installation of Krystol Waterstop Grout, an inspector shall visually inspect the application to verify the presence of the "red" triangular strip in the correct location and proper dimensions (Technical Bulletin #103).
			2.	Following the installation of Krystol Waterstop Treatment, an inspector shall visually inspect the application to verify the presence of the "gold" slurry coat covering the entire contact area of the joint.
		D.	Where two stage inspections are not possible, a single inspection will verify the presence of the "gold" slurry of Krystol Waterstop Treatment covering the entire contact area of the joint.
		E.	For technical Bulletin #103, at or near the center of the joint shall be a raised triangle with the proper dimensions for Krystol Waterstop Grout. A small section of the "gold" treatment may be removed from the triangle to verify the presence of "red" Grout underneath.
	*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 if not required.
		F.	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.
	3.5	CLEANING AND PROTECTION
		A.	Protect waterproofed concrete from damage during construction.
		B.	When backfilling occurs less than 7 days after installation, use moist backfill material.
		C.	Concrete must be cured a minimum of 28 days before applying paint or other coatings. Surface preparation and application should follow guidelines supplied by the paint/coating's manufacturer.
	END OF SECTION