03 60 00 - Grouting.pdf

03 60 00 – GROUTING

Herbert, Rowland & Grubic, Inc. 03 60 00 - 1 009280.0426

SECTION 03 60 00 – GROUTING

PART 1 - GENERAL

1.1 SUMMARY

A. Related Requirements:

1. Section 03 10 00 – Concrete Forming and Accessories: Form materials, waterstops, and accessories as required to form cast-in-place concrete and maintain structural integrity until stripping.

2. Section 03 30 00 – Cast-in-Place Concrete: Cast-in-place or in-situ concrete for structural building frames, slabs on fill or grade, and other concrete components.

1.2 REFERENCE STANDARDS

A. ASTM International:

1. ASTM C33 - Standard Specification for Concrete Aggregates.

2. ASTM C40 - Standard Test Method for Organic Impurities in Fine Aggregates for Concrete.

3. ASTM C150 - Standard Specification for Portland Cement.

4. ASTM C191 - Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle.

B. U. S. Army Corps of Engineers Concrete Research Division (CRD):

1. CRD-C621 - Non-Shrink Grout.

1.3 DELIVERY, STORAGE, AND HANDLING

A. Section 01 61 00 – Product Requirements: Requirements for transporting, handling, storing, and protecting products.

B. Inspection: Accept materials on Site in manufacturer's original packaging and inspect for dam-age.

C. Store materials according to manufacturer instructions.

Herbert, Rowland & Grubic, Inc. 03 60 00 - 2 009280.0426

D. Protection:

1. Protect materials from moisture and dust by storing in clean, dry location remote from construction operations areas.

2. Provide additional protection according to manufacturer instructions.

1.4 AMBIENT CONDITIONS

A. Section 01 50 00 – Temporary Facilities and Controls: Requirements for ambient condition con-trol facilities for product storage and installation.

B. Maximum Conditions: Do not perform grouting if temperatures exceed 90 degrees F.

C. Minimum Conditions: Maintain minimum temperature of 40 degrees F before, during, and after grouting, until grout has set.

PART 2 - PRODUCTS

2.1 PORTLAND CEMENT GROUT

A. Portland Cement: Comply with ASTM C150, Type II and I/II.

B. Water:

1. Potable.

2. No impurities, suspended particles, algae, or dissolved natural salts in quantities capable of causing:

a. Corrosion of steel.

b. Volume change increasing shrinkage cracking.

c. Efflorescence.

d. Excess air entraining.

C. Fine Aggregate:

1. Washed natural sand.

2. Gradation:

a. Comply with ASTM C33.

b. Represented by smooth granulometric curve within required limits.

3. Free from injurious amounts of organic impurities according to ASTM C40.

D. Mix:

1. Portland cement, sand, and water.

Herbert, Rowland & Grubic, Inc. 03 60 00 - 3 009280.0426

2. Do not use ferrous aggregate or staining ingredients in grout mixes.

2.2 NONSHRINK CEMENTITIOUS GROUT

A. Description:

1. Pre-mixed and ready-for-use formulation requiring only addition of water.

2. Nonshrink, non-corrosive, nonmetallic, non-gas forming, and no chlorides.

B. Performance and Design Criteria:

1. Certified to maintain initial placement volume or expand after set, and to meet following minimum properties when tested according to CRD-C621 for Type D nonshrink grout:

a. Setting Time:

1) Initial: Approximately two hours.

2) Final: Approximately three hours.

3) Comply with ASTM C191.

b. Maximum Expansion: 0.10 to 0.40 percent.

c. Compressive Strength:

1) One-Day: 4,000 psi.

2) Seven-Day: 7,000 psi.

3) 28-Day: 10,000 to 10,800 psi.

4) Comply with CRD-C621.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Section 01 73 00 – Execution Requirements: Requirements for installation examination.

B. Verify areas to receive grout.

3.2 PREPARATION

A. Section 01 73 00 – Execution Requirements: Requirements for installation preparation.

B. Remove defective concrete, laitance, dirt, oil, grease, and other foreign material from concrete surfaces by brushing, hammering, chipping, or other similar means until sound and clean con-crete surface is achieved.

C. Roughen concrete lightly, but not to interfere with placement of grout.

D. Remove foreign materials from metal surfaces in contact with grout.

Herbert, Rowland & Grubic, Inc. 03 60 00 - 4 009280.0426

E. Align, level, and maintain final positioning of components to be grouted.

F. Saturate concrete surfaces with clean water, and then remove excess water.

3.3 INSTALLATION

A. Mixing:

1. Mix grout components in proximity to Work area and transport mixture quickly and in manner not permitting segregation of materials.

B. Placing of Grout:

1. Place grout material quickly and continuously.

2. Do not use pneumatic-pressure or dry-packing methods.

3. Apply grout from one side only to avoid entrapping air.

4. Do not vibrate placed grout mixture or permit placement if area is being vibrated by nearby equipment.

5. Thoroughly compact final installation and eliminate air pockets.

6. Do not remove leveling shims for at least 48 hours after grout has been placed.

C. Curing:

1. Prevent rapid loss of water from grout during first 48 hours by use of approved membrane curing compound or by using wet burlap method.

2. Immediately after placement, protect grout from premature drying, excessively hot or cold temperatures, and mechanical injury.

3. After grout has attained its initial set, keep damp for minimum three days.

3.4 FIELD QUALITY CONTROL

A. Section 01 40 00 – Quality Requirements: Requirements for inspecting and testing.

END OF SECTION 03 60 00