12-Sec 03 62 13 Grouting.pdf

Concrete Pool Repairs

07.24.2025

FANNY CHAPMAN

SECTION 03 62 13

GROUTING

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

Section 03 62 13 - Grouting 08.26.2025

Part 1 - General

1.1 System description

This specification describes the grouting of cavities, voids, key ways, etc. with a portland cement, non-shrink, non-metallic grout.

1.2 References

The following standards are applicable to this section:

ASTM C-266 – Time of Set

ASTM C-939 – Fluidity

ASTM C-109 – Compressive Strength

ASTM C-940 - Expansion

ASTM C-1090 – Shrinkage

ASTM C-1107 – Standard Specification for Non-shrink Grouts

1.3 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 grouting 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. Store and apply materials in accordance with all safety and weather conditions required by 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.

1.4 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 from rain, freezing or excessive heat until ready for use.

C. Condition the specified product as recommended by the manufacturer.

1.5 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. When the work is scheduled to occur during cool or cold weather, implement ACI 308R-16 “Guide to Cold Weather Concreting” procedures and precautions including but not limited to providing tents, tarps, heat, humidity, and overall concreting/grouting environment for proper preparation, placement, curing and protection of cementitious materials, concrete, grout, mortar and any other temperature sensitive materials or installations. Follow manufacturer’s instructions for cold or hot weather installation of grout materials. If there is a discrepancy between ACI and the manufacturer’s recommendations, the most stringent criteria will apply. This work is incidental to the contract and there will be no additional payment for cold weather procedures and precautions.

FANNY CHAPMAN

SECTION 03 62 13

GROUTING

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

Section 03 62 13 - Grouting 08.26.2025

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.

1.6 Submittals

A. Submit electronic copies of manufacturer's literature, to include but not limited to the following: Product Data Sheets (PDS), appropriate Safety Data Sheets (SDS), catalog cuts, brochures, and all related submittals.

B. Submit copy of Certificate of Approved Contractor status by manufacturer.

1.7 Warranty

Provide a written warranty from the manufacturer against defects of materials for a period of one (1) year, beginning with date of substantial completion of the project.

Part 2 - Products

2.1 Manufacturer

SikaGrout®-212, as manufactured by Sika® Corporation, is considered to conform to the requirements of this specification.

2.2 Materials

A. The material shall be a blend of selected portland cements, specially graded aggregates, admixtures for controlling setting time and water reducers for workability.

B. The material shall be non-combustible both before and after cure

C. The material shall be supplied in a factory-blended bag

Portland cement grout:

D. The portland cement grout shall be a non-shrink, non-metallic composition containing a blend of selected portland cements, plasticizing/water-reducing admixtures and shrinkage compensating agents. The shrinkage agents shall compensate for shrinkage in both the plastic and hardened state.

E. Materials for forming, as required for the designated work, shall be approved by the Engineer.

2.3 Performance Criteria

The grout shall not exhibit bleeding. The grout shall be segregate.

The grout shall be pumpable through standard grout pumping equipment. The grout shall not produce a vapor barrier.

The grout shall exhibit positive expansion when tested in accordance to ASTM C-827.

The grout shall conform to United States Army Corps of Engineers Specification CRD C-621. The grout shall conform to ASTM C-1107.

The material shall be approved by the United States Department of Agriculture.

FANNY CHAPMAN

SECTION 03 62 13

GROUTING

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

Section 03 62 13 - Grouting 08.26.2025

Typical Properties of the mixed polymer-modified, portland cement mortar:

1 Yield 0.44 ft3 (0.01 m3) at fluid consistency

2 Color Gray powder

3 Mixing Ratio Plastic - 6 pt

Flowable – 6.5 pt

Fluid – 8.5 pt

4 Application Thickness Min: 1/2" (12.7 mm)

Max: 4" (101.6 mm)

5 Application Temp < 45 °F (7 °C)

6 Flowability (ASTM C-14371 ASTM C-9392) Plastic1: 100–124 %

Flowable1: 124–145 %

Fluid2: 20–40 sec

7 Set time (ASTM C-266) flowable consistency Initial: 4.0–5.0 h

Final: 5.5–6.5 h

8 Compressive Strength (ASTM C-109) Plastic

1 day - 4,500 psi (31 MPa) 7 days - 6,100 psi (42 MPa) 28 days - 7,500 psi (51.7 MPa) Flowable 1 day - 3,500 psi (24.1 MPa) 7 days - 5,700 psi (39.3 MPa) 28 days - 6,200 psi (42.7 MPa) Fluid 1 day - 2,700 psi (18.6 MPa) 7 days - 5,500 psi (37.9 MPa) 28 days - 5,800 psi (40 MPa)

9 Flexural Strength (ASTM C-293) Plastic 28 days - 1,400 psi (9.6 MPa) Flowable 28 days - 1,200 psi (8.2 MPa) Fluid 28 days - 1,000 psi (6.8 MPa)

10 Splitting Tensile Strength (ASTM C-496) Plastic 28 days - 600 psi (4.1 MPa) Flowable 28 days - 575 psi (3.9 MPa) Fluid 28 days - 500 psi (3.4 MPa)

11 Tensile Adhesion Strength (ASTM C-882 modified)

Plastic 28 days - 2,000 psi (13.7 MPa) Flowable 28 days - 1,900 psi (13.1 MPa) Fluid 28 days - 1,900 psi (13.1 MPa)

12 Expansion (ASTM C-1090) Plastic 28 days +0.021 % Flowable 28 days +0.056 % Fluid 28 days +0.027 %

FANNY CHAPMAN

SECTION 03 62 13

GROUTING

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

Section 03 62 13 - Grouting 08.26.2025

Part 3 – Execution

3.1 Surface Preparation

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 CSP 4 or greater (as per ICRI Guidelines) with a new exposed aggregate surface, where applicable.

For under-slab grouting, drill port holes and vent holes for pressure grouting application of the grout.

Submit a sketch plan identifying proposed drill hole locations and identify proposed port and vent holes.

Submit equipment to be utilized for pressure grouting, pumping, etc.

3.2 Mixing and Application

A. Mixing of the portland cement grout: Mix manually or mechanically. Manually mix in a wheelbarrow or mortar box. Mechanically mix with a low-speed (400-600 rpm) drill and jiffy paddle or in an appropriate sized mortar mixer. Add an appropriate quantity of water to the mixing container to achieve the desired consistency. DO NOT OVERWATER While mixing the bag of powder is slowly added to the mixer. Mix to a uniform consistency for a minimum of 2 minutes. Mix temperature should be maintained at 70-75F, thus using cold or warm water accordingly.

B. Placement Procedure:

Spalls: Within 15 minutes of mixing, pour the grout into the prepared form. Work in a manner to avoid air entrapment. Vibrate the form as required to achieve flow and compaction. Flowable grout must be confined in either the horizontal or vertical direction, leaving a minimum of exposed surface. After the grout has achieved its final set, remove any forms and trim or shape exposed mortar/concrete to the desired profile, if required.

Cracks: Within 15 minutes of mixing pour the grout into prepared crack. Continue pouring until the crack has been completely filled.

C. Wet cure for a minimum of three (3) days.

D. Adhere to all limitation and cautions for the non-shrink, non-metallic portland cement grout in the manufacturers printed Product Data Sheet (PDS) and literature.

E. Consult the Sika Corp. technical department for specific instructions for pressure grouting and pumping applications.

3.3 Cleaning

A. The uncured non-shrink, non-metallic portland cement grout can be cleaned from tools with water. The cured non-shrink, non-metallic portland cement grout can only be removed mechanically.

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

FANNY CHAPMAN

SECTION 03 62 13

GROUTING

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

Section 03 62 13 - Grouting 08.26.2025

SikaGrout

-212 Form and Pump

1. Pre-wet surface to SSD.

2. Apply release agent to form or use plastic lined plywood.

3. Run bead of Sikaflex 1a around edge of form to prevent leakage, let cure, then anchor form. Fill with water to check for water tightness.

Let drain to no free standing water.

4. Pump SikaGrout-212 with a variable pressure pump. Continue pumping until a 3 to 5 psi increase in normal line pressure is 6 evident then STOP pumping. Form should not deflect.

5. Vibrate form while pumping.

6. Vent to be capped when steady flow is evident.

7. Strip form when appropriate

8. Dry pack anchor holes with SikaGrout-212.

END OF SECTION

NOTE: This sheet is provided for illustration purposes only. Actual pump and under-slab grouting apparatus and procedures will vary.

Submit detailed equipment list and identify procedures to be used for the under-slab pressure grouting operation.