13-Sec 13 11 13.1 Concrete Pool Repairs.pdf

Concrete Pool Repairs 07.24.2025

FANNY CHAPMAN

SECTION 13 11 13.1

SPECIFICATION FOR CONCRETE POOL REPAIRS

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 13 11 13.1 – Concrete Pool Repairs 08.26.2025

Part 1 – General

1.1 Summary

A. This specification describes the use of cementitious epoxy resin coating material with corrosion inhibitor as a bonding primer and reinforcement corrosion protection repair material to establish a bond between new polymer-modified cementitious, non-sag (“NS”) mortar for vertical and overhead repairs and self-leveling (“SL”) mortar for horizontal repairs the existing hardened Portland cement mortar or concrete. This specification also describes the patching and/or repair of vertical and horizontal surfaces with polymer-modified, Portland cement-based, fast-setting, non-sag, or self-leveling high performance mortars for horizontal, vertical, and overhead repairs.

1.2 Quality Assurance

A. Manufacturing qualifications: The manufacturer of the specified product shall be ISO 9001 certified and have in existence a recognized ongoing quality assurance program independently audited on a regular basis.

B. Contractor qualifications: Contractor shall be qualified in the field of concrete repair and protection with a successful track record of 5 years or more. Contractor shall maintain qualified personnel who have received product training by a manufacturer's representative.

C. Install materials in accordance with all safety and weather conditions required by the manufacturer, or as modified by applicable rules and regulations of Local, State and Federal authorities having jurisdiction. Consult Material Safety Data Sheets for complete handling recommendations.

1.3 Delivery, Storage, and Handling

A. All materials must be delivered in original, unopened containers with the manufacturer’s name, labels, product identification, and batch numbers. Damaged material must be removed from the site immediately.

B. Store all materials off the ground and protect them from rain, freezing, cold temperatures or excessive heat until ready for use.

1.4 Job Conditions

A. Environmental Conditions: Do not apply material if it is raining or snowing or if such conditions appear to be imminent. Minimum application temperature 45ºF (7ºC) and rising.

B. Protection: Precautions should be taken to avoid damage to any surface near the work zone due to mixing and handling of the specified material.

1.5 Submittals

A. Submit two copies of manufacturer’s literature, to include: Product Data Sheets, and appropriate Material Safety Data Sheets (MSDS) and Installation Instructions.

1.6 Warranty

A. Provide a written warranty from the manufacturer against defects of materials for a period of one

(1) year, beginning with date of final completion of the project.

FANNY CHAPMAN

SECTION 13 11 13.1

SPECIFICATION FOR CONCRETE POOL REPAIRS

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 13 11 13.1 – Concrete Pool Repairs 08.26.2025

Part 2 - Products

2.1 Manufacturer

A. Sika Armatec 110 EpoCem as manufactured by Sika Corporation, is considered to conform to the requirements of this specification;

B. SikaTop 122 Plus, as manufactured by Sika Corporation, is considered to conform to the requirements of this specification;

C. SikaTop 123 Plus, as manufactured by Sika Corporation, is considered to conform to the requirements of this specification;

D. Or submit technical product data sheets, test results and brochures for alternate products that are proposed to be considered and reviewed by the Owner and Engineer as an approved equal.

2.2 Materials

A. Epoxy resin/Portland cement adhesive shall be Sika Armatec 110 EpoCem, or approved equal.

1. Component “A” shall be an epoxy resin/water emulsion containing suitable viscosity control agents. It shall not contain butyl glycidyl ether.

2. Component “B” shall be primarily a water solution of a polyamine.

3. Component “C” shall be a blend of selected Portland cements and sands.

4. The material shall not contain asbestos.

B. Polymer-modified Portland cement mortars:

1. Component A shall be a liquid polymer emulsion of an acrylic copolymer base and additives

a. pH: 4.5-6.5

a. Film Forming Temperature: 73°F max.

b. Tear Strength: 950-psi min.

c. Elongation at Break: 500% min.

d. Particle Size: less than 0.1 micron

2. Component A shall contain an organic, penetrating corrosion inhibitor which has been independently proven to reduce corrosion in concrete via ASTM G3 (half-cell potential tests). The corrosion inhibitor shall not be calcium nitrite, and shall have a minimum of 5 years of independent field testing to document performance on actual construction projects.

3. Component B shall be a blend of selected Portland cements, specially graded aggregates, admixtures for controlling setting time, water reducers for workability, and an organic accelerator.

4. The materials shall be non-combustible, both before and after cure.

5. The materials shall be supplied in a factory-proportioned unit.

6. The polymer-modified, Portland cement mortar must be placeable from 1/8-in. to 1-in. in depth per lift for horizontal applications.

C. To prepare a polymer-modified Portland cement concrete: aggregate shall conform to ASTM C-33.

The factory- proportioned unit shall be extended with 42-lb. max. of a 3/8 in. (No.8 distribution per ASTM C-33, Table II) clean, well-graded, saturated surface dry aggregate, having low absorption and

FANNY CHAPMAN

SECTION 13 11 13.1

SPECIFICATION FOR CONCRETE POOL REPAIRS

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 13 11 13.1 – Concrete Pool Repairs 08.26.2025 high density. Aggregate must be approved for use by the Engineer.

2.3 Performance Criteria

1. Sika Armatec 110 EpoCem

A. Properties of the mixed epoxy resin/Portland cement adhesive.

1. Pot Life: 90 minutes @ 73° F

2. Contact Time: 95°F 6 hours

a. 80-95°F 6 Hours

b. 65-79°F 12 Hours

c. 50-64°F 16 Hours

d. 40-49°F wet on wet

3. Color: dark gray

B. Properties of the cured epoxy resin/Portland cement adhesive.

1. Compressive Strength (ASTM C-109)

a. 3 day: 4500 psi

b. 7 day: 6500 psi

c. 28 day: 8500 psi

C. Splitting Tensile Strength (ASTM C-496)

1. 28 days: 600 psi

D. Flexural Strength (ASTM C-348)

1. 1250 psi

E. Bond Strength ASTM C-882 at 14 days

1. Wet on Wet, 0-hr. open time: 2800 psi

2. 24-hr. open time: 2600 psi

F. Bond of Steel Reinforcement to Concrete (Pullout Test)

1. Sika Armatec 110 coated 625-psi

2. Epoxy coated 508 psi

3. Plain Reinforcement 573 psi

G. The epoxy resin/Portland cement adhesive shall not produce a vapor barrier.

H. Material must be proven to prevent corrosion of reinforcing steel when tested under the procedures as set forth by the Federal Highway Administration Program Report No.

FHWA/RD86/193. Proof shall be in the form of an independent testing laboratory corrosion report

2. SikaTop 122 Plus

A. Typical Properties of the mixed polymer-modified, Portland cement mortar:

1. Working Time: Approximately 30 minutes

2. Finishing Time: 50-120 minutes

3. Color: concrete gray when mixed

B. Typical Properties of the cured polymer-modified, Portland cement mortar:

1. Compressive Strength (ASTM C-109 Modified)

a. 1 day: 3000 psi min.

b. 7 day: 5500 psi min.

c. 28 day: 7000 psi min.

2. Flexural Strength (ASTM C-293) @ 28 days: 2000 psi

FANNY CHAPMAN

SECTION 13 11 13.1

SPECIFICATION FOR CONCRETE POOL REPAIRS

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 13 11 13.1 – Concrete Pool Repairs 08.26.2025

3. Splitting Tensile Strength (ASTM C-496) @ 28 days 750 psi

4. Bond Strength (ASTM C-882 Modified) @ 28 days: 2200 psi

5. The Portland cement mortar shall not produce a vapor barrier.

6. Density(wet mix): 136 lbs. / cu. ft. (2.18 kg/l)

7. Permeability (AASHTO T-277 @ 28 days

3. SikaTop 123 Plus

A. Typical Properties of the mixed polymer-modified, Portland cement mortar:

1. Working Time: Approximately 15minutes

2. Finishing Time: 20 - 60 minutes

3. Color: concrete gray

B. Typical Properties of the cured polymer-modified, Portland cement mortar:

1. Compressive Strength (ASTM C-109 Modified)

a. 1 day: 3500 psi min.

b. 7 day: 6000 psi min.

c. 28 day: 7000 psi min.

2. Flexural Strength (ASTM C-293) @ 28 days: 2000 psi

3. Splitting Tensile Strength (ASTM C-496) @ 28 days: 900 psi

4. Bond Strength (ASTM C-882 Modified) @ 28 days: 2200 psi

5. The Portland cement mortar shall not produce a vapor barrier.

6. Density (wet mix): 132 lbs. / cu. ft. (2.2 kg/l)

7. Permeability - AASHTO T-277 @ 28 days

Part 3 – Execution

Sika Armatec 110 EpoCem

3.1 Mixing and Application

A. Mixing the epoxy resin: shake contents of Components “A” and Component “B”. Completely empty both components into a clean, dry mixing pail. Mix thoroughly for 30 seconds using a jiffy paddle with a low- speed (400-600 rpm) drill. Slowly add the entire contents of Component “C” while continuing to mix for 3 minutes until uniform with no lumps. Mix only that quantity that can be applied within its pot life.

B. Placement procedure:

� Apply to prepared surface with a stiff-bristle brush, broom or “hopper type” spray equipment.

� For hand-applied mortars - Place fresh, plastic concrete/mortar while the bonding bridge adhesive is “wet” or within open times indicated in section 2.03.

� Adhere to all limitations, instructions and cautions for the epoxy resin/Portland cement

FANNY CHAPMAN

SECTION 13 11 13.1

SPECIFICATION FOR CONCRETE POOL REPAIRS

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 13 11 13.1 – Concrete Pool Repairs 08.26.2025 adhesive in the manufacturer’s current printed literature.

3.2 Cleaning

A. The uncured epoxy resin/Portland cement adhesive can be cleaned from tools with water. The cured epoxy resin/Portland cement adhesive can only be removed mechanically.

B. Leave finished work and work area in a neat, clean condition without evidence of spillovers onto adjacent areas. Promptly remove excess material, spillovers, defective material or unacceptable material.

SikaTop 122 Plus

3.3 Surface Preparation

A. Areas to be repaired must be clean, sound, and free of contaminants. All loose and deteriorated concrete shall be removed by mechanical means. Mechanically prepare the concrete substrate to obtain a surface profile of +/- 1/16” (CSP 5 or greater as per ICRI Guidelines) with a new exposed aggregate surface. Area to be patched shall not be less than 1/8” in depth.

B. Coat all existing mating surfaces that are to be in contact with new cement concrete or repair mortar with epoxy bonding compound (adhesive) immediately prior to placing the new concrete or repair mortar. Clean the existing concrete thoroughly prior to the application of the epoxy bonding compound (adhesive). The cost of the epoxy bonding compound (adhesive) is incidental to the class of concrete or repair mortar for which it is applied. Provide Sika Armatec 110 EpoCem or approved equal.

C. Where reinforcing steel with active corrosion is encountered, sandblast the steel to a white metal finish to remove all contaminants and rust. Where corrosion has occurred due to the presence of chlorides, the steel shall be high pressure washed after mechanical cleaning. Prime steel with 2 coats of as directed by manufacturer. (See Spec Component SC- 201-0699). Furnish Sika Armatec 110 EpoCem as incidental to this repair product.

3.4 Mixing and Application

A. Mechanically mix in appropriate sized mortar mixer or with a Sika jiffy paddle and low speed (400- 600 rpm) drill. Pour approximately 4/5 gal Component A into the mixing container. Add Component B while continuing to mix. Mix to a uniform consistency for a maximum of three minutes. Add remaining Component A to mix if a looser -more flowable- consistency is desired. Should smaller quantities be needed, be sure the components are measured in the correct ratio and that Component B is uniformly blended before mixing the components together. Mix only that amount of material that can be placed in 30 minutes. Do not retemper material.

B. Mixing of the polymer-modified Portland cement concrete: Pour all (1-gallon) of Component A into the mixing container. Add Component B while continuing to mix. Add the correct amount of the pre-approved coarse aggregate, and continue mixing to a uniform consistency. Mixing time should be 3 minutes maximum.

C. Placement Procedure: At the time of application, the substrate should be saturated surface dry with no standing water. Mortar and/or concrete must be scrubbed into substrate filling all pores and voids.

While the scrub coat is still plastic, force material against edge of repair, working toward center. If repair area is too large to fill while scrub coat is still wet use Sika Armatec 110 EpoCem in lieu of scrub coat (See Spec Component SC-200). After filling, consolidate, then screed. Allow mortar or concrete to set to desired stiffness, then finish with trowel, manual or power, for smooth surface.

Broom or burlap drag for rough surface. Areas where the depth of the repair is less than 1- inch shall

FANNY CHAPMAN

SECTION 13 11 13.1

SPECIFICATION FOR CONCRETE POOL REPAIRS

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 13 11 13.1 – Concrete Pool Repairs 08.26.2025 be repaired with polymer-modified Portland cement mortar. In areas where the depth of the repair is greater than 1 inch, the repair shall be made with polymer-modified Portland cement concrete.

D. As per ACI recommendations for Portland cement concrete, curing is required. Moist cure with wet burlap and polyethylene, a fine mist of water. Moist curing should commence immediately after finishing and continue for 48 hours. Protect newly applied material from rain, sun, and wind until compressive strength is 70% of the 28-day compressive strength. To prevent from freezing cover with insulating material. Setting time is dependent on temperature and humidity. The use of curing compounds, films, or materials other than water is not permitted.

E. Adhere to all procedures, limitations and cautions for the polymer-modified Portland cement mortar in the manufacturers current printed technical data sheet and literature.

3.5 Cleaning

A. The uncured polymer-modified Portland cement mortar can be cleaned from tools with water. The cured polymer - modified Portland cement mortar can only be removed mechanically.

B. Leave finished work and work area in a neat, clean condition without evidence of spillovers onto adjacent areas.

SikaTop 123 Plus

3.1 Surface Preparation

A. Areas to be repaired must be clean, sound, and free of contaminants. All loose and deteriorated concrete shall be removed by mechanical means. Mechanically prepare concrete substrate to obtain a surface profile of +/- 1/16” (CSP 5 or greater as per ICRI Guidelines) with a new exposed aggregate surface. Area to be patched shall not be less than 1/8” in depth.

B. Coat all existing mating surfaces that are to be in contact with new cement concrete or repair mortar with epoxy bonding compound (adhesive) immediately prior to placing the new concrete or repair mortar. Clean the existing concrete thoroughly prior to the application of the epoxy bonding compound (adhesive). The cost of the epoxy bonding compound (adhesive) is incidental to the class of concrete or repair mortar for which it is applied. Provide Sika Armatec 110 EpoCem or approved equal.

C. Where reinforcing steel with active corrosion is encountered, sandblast the steel to a white metal finish to remove all contaminants and rust. Where corrosion has occurred due to the presence of chlorides, the steel shall be high pressure washed after mechanical cleaning. Prime steel with 2 coats of as directed by manufacturer. (See Spec Component SC- 201-0699). Furnish Sika Armatec 110 EpoCem as incidental to this repair product.

3.2 Mixing and Application

A. Mechanically mix in an appropriate sized mortar mixer or with a Sika mud paddle and low speed (400-600 rpm) drill. Pour approximately 4/5 gal Component A into the mixing container. Add Component B while continuing to mix. Mix to a uniform consistency for a maximum of three minutes. Add remaining Component A to mix for desired consistency. Should smaller quantities be needed, be sure the components are measured in the correct ratio and that Component B is uniformly blended before mixing the components together. Mix only that amount of material that can be placed in 10 - 15 minutes. Do not retemper material.

B. Placement Procedure: At the time of application, the substrate shall be saturated surface dry with no standing water. Mortar must be scrubbed into substrate filling all pores and voids. While the scrub coat is still plastic, force material against edge of repair, working toward center. If repair

FANNY CHAPMAN

SECTION 13 11 13.1

SPECIFICATION FOR CONCRETE POOL REPAIRS

Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA

Section 13 11 13.1 – Concrete Pool Repairs 08.26.2025 area is too large to fill while scrub coat is still wet use Sika Armatec 110 EpoCem in lieu of scrub coat. (See spec component SC-200-0699) After filling, consolidate then screed. Allow mortar to set to desired stiffness then finish with trowel for smooth surface. Wood float or sponge float for a rough surface. Areas where the depth of the repair area to sound concrete is greater than 1-1/2”, the repair shall be made in two or more lifts of not more than 1-1/2” maximum thickness, up to a maximum total repair thickness of 3”. The top surface of each lift shall be scored to produce a rough surface for the next lift. The preceding lift shall be allowed to reach final set before applying fresh material. The fresh mortar must be scrubbed into the preceding lift.

C. As per ACI recommendations for Portland cement concrete, curing is required. Moist cure with wet burlap and polyethylene, a fine mist of water. Moist curing should commence immediately after finishing and continue for 48 hours. Protect newly applied material from rain, sun, and wind until compressive strength is 70% of the 28-day compressive strength. To prevent from freezing cover with insulating material. Setting time is dependent on temperature and humidity. The use of curing compounds, films, or materials other than water is not permitted.

D. Adhere to all procedures, limitations and cautions for the polymer-modified Portland cement mortar in the manufacturers current printed technical data sheet and literature.

3.3 Cleaning

A. The uncured polymer-modified Portland cement mortar can be cleaned from tools with water. The cured polymer-modified Portland cement mortar can only be removed mechanically.

B. Leave finished work and work area in a neat, clean condition without evidence of spillovers onto adjacent areas.

END OF SECTION