MINISTRY OF HOUSING Western Sector Projects Sitework & Infrastructure OMRANIA and ASSOCIATES Project Specification

LIGHTWEIGHT INSULATING CONCRETE SECTION 03 52 16 - 1

SECTION 03 52 16

LIGHTWEIGHT INSULATING CONCRETE

PART 1: GENERAL

1.01 DESCRIPTION

A. Light weight insulating concrete fill over structural floors including, but not limited to the following:

1. Light weight concrete.

2. Accessories.

3. Perimeter joint filler.

1.02 RELATED SECTIONS

A. Section 01 33 00 Submittal Procedures.

B. Section 03 33 00 Cast In Place Concrete.

1.03 REFERENCES

A. ASTM A 496 Steel Welded Wire Mesh, for Concrete Reinforcement.

B. ASTM C 138 Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete.

C. ASTM C 150 Standard Specification for Portland Cement.

D. ASTM C 260 Air Entraining Admixtures for Concrete.

E. ASTM C 332 Lightweight Aggregate for Insulating Concrete

F. ASTM C 495 Test Method for Compressive Strength of Lightweight Concrete.

1.04 SUBMITTALS

A. Comply with Section 01 33 00.

B. Product Data for the proposed product, physical characteristics, thermal values, and product limitations.

C. Certificates: Certify that products meet specified requirements, density, indicated thickness and compressive strength.

D. Manufacturer's installation instructions.

1.05 QUALITY ASSURANCE

A. Installer: Company specialized in placing lightweight concrete fill material specified in this Section with minimum three years of documented experience approved by the manufacturer.

MINISTRY OF HOUSING Western Sector Projects Sitework & Infrastructure OMRANIA and ASSOCIATES Project Specification

LIGHTWEIGHT INSULATING CONCRETE SECTION 03 52 16 - 2

1.06 PRE-INSTALLATION MEETING

A. Convene two weeks prior to commencing work of this Section.

1.07 ENVIRONMENTAL REQUIREMENTS

A. Follow manufacturer's recommendations, with regard to ambient temperature.

PART 2: PRODUCTS

2.01 ACCEPTABLE MANUFACTURERS

Not Used.

2.02 MATERIALS

A. Cement: ASTM C 150, Portland Type I-Normal, gray color.

B. Lightweight Aggregate: ASTM C 332; Group I Perlite.

C. Concrete Materials: Aggregate required by manufacturer and water.

2.03 ACCESSORIES

A. Reinforcement: Perlite concrete shall be reinforced with deformed welded wire mesh A193, conforming to ASTM A 496.

B. Perimeter Joint Filler: Glass fiber strips, compressible to 50% original thickness under load of 1.2 N/mm with full recovery.

2.04 CONCRETE MIX

A. Provide aggregate concrete mix to comply with the following:

Compressive Strength to ASTM C 495

N/mm

Wet Density to ASTM C 138

kg/m2

Dry Density kg/m3

3

30 1312 + 80 1040

B. Slump: Maximum allowable slump 100 mm.

PART 3: EXECUTION

3.01 EXAMINATION

A. Coordination and Meetings: Convene site meeting to verify existing conditions prior to starting work.

3.02 PREPARATION

A. Install 20 mm thick expansion joint filler at:

MINISTRY OF HOUSING Western Sector Projects Sitework & Infrastructure OMRANIA and ASSOCIATES Project Specification

LIGHTWEIGHT INSULATING CONCRETE SECTION 03 52 16 - 3

1. Perimeter of floor decking.

2. Around penetrations through deck.

3. Every 30 m of deck surface dimension.

4. Each change of deck direction

3.03 INSTALLATION

A. Deck surface; use mix to fill holes and breaks.

B. Place lightweight concrete and screed surface to achieve thicknesses as shown on the Drawings.

3.04 CURING

A. Cure in accordance with lightweight aggregate manufacturer's instructions.

B. Protect lightweight concrete from traffic and excess evaporation of surface moisture.

C. During low humidity conditions, sprinkle water over concrete surface to aid hydration and curing.

3.05 FIELD QUALITY CONTROL

A. Conduct field inspection and testing for dry density.

B. Take three test samples from each 25 m3

C. Take one additional test sample during hot weather concreting.

of lightweight concrete placed.

END OF SECTION