SECTION 02221 BUILDING DEMOLITION

This spec was part of the Des Plaines, IL River WRF project that bid Feb 26, 2015.

SECTION 02221 BUILDING DEMOLITION

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes:
1. Demolishing designated structures.
2. Demolishing designated foundations.
3. Demolishing designated slabs-on-grade.
4. Disconnecting and capping designated utilities.
5. Filling designated underground tanks.
6. Removing designated items for reuse and Owner’s retention.
7. Protecting items designated to remain.
8. Removing demolished materials.

1.2 SUBMITTALS

A. Demolition Schedule: Indicate overall schedule, description of demolition removal procedures and interruptions required for utility and building services for review and approval by Owner.

B. Shop Drawings:
1. Submit under provisions of Section 01330 – Submittal Procedures.
2. Indicate location and construction of temporary work.

1.3 CLOSEOUT SUBMITTALS

A. Section 01700 - Execution Requirements: Requirements for submittals.

B. Project Record Documents: Accurately record actual locations of capped utilities, concealed utilities discovered during demolition, subsurface obstructions, and limits of buried structure removal.

1.4 QUALITY ASSURANCE

A. Conform to applicable code for demolition work, safety of adjacent structures, dust control, products requiring electrical disconnection and re-connection, and disposal of demolition wastes.

B. Conform to applicable code for procedures when hazardous or contaminated materials are discovered.

C. Obtain required permits from authorities having jurisdiction.
A.
1.5 SEQUENCING

A. Section 01100 - Summary of Work: Requirements for sequencing.

B. All asbestos removal activities must be completed prior to commencing demolition work.

1.6 SCHEDULING

A. Section 01323 - Network Analysis Schedules: Requirements for scheduling.

B. Schedule Work to precede site excavation work and new construction.

C. Cooperate with Owner in scheduling noisy operations and waste removal that may impact Owners operation and adjoining property owners.

D. Coordination:
1. Perform demolition work in a manner which does not interfere with the Owner’s operations.
2. Coordinate demolition work so that new construction may proceed without undue delay.

1.7 ASBESTOS REMOVAL

A. Provide personnel certified to conduct and supervise asbestos removal activities.

B. Comply with federal and state regulations covering the removal and disposal of asbestos- containing materials.

C. See Asbestos Building Inspection reports for the site attached to this section. Asbestos- containing materials were found only in the floor tile in Bldg 15 Battery A Control Building, described as Category I non-friable. See attached testing reports.


PART 2 PRODUCTS

2.1 FILL MATERIALS

A. Fill Material: Specified in Section 02320.


PART 3 EXECUTION

3.1 EXAMINATION

A. Make arrangements with building owners and occupants to survey interior and exterior of existing buildings.

B. Survey and record condition of existing facilities to remain in-place that may be affected by the demolition work. After work is completed, restore facilities to original condition at no additional cost to the Owner.
A.
3.2 PREPARATION

A. Obtain written release from Owner before beginning demolition for each structure.

B. Notify affected utility companies before starting work to permit them to disconnect, remove, or relocate services at existing facilities. Comply with their requirements.

C. Reroute or shut off electrical, HVAC, process, and plumbing services outside the area of demolition.

D. Mark location and termination of utilities.

E. Salvage items specified for reuse in the Work or specified to be delivered to the Owner.

F. Erect and maintain temporary barriers and security devices around perimeter of demolition site, including warning signs and lights, and similar measures, for protection of the public, Owner, and existing improvements indicated to remain.

G. Drain or pump out basins to be demolished or abandoned. Dispose of liquid wastes properly.

H. Erect and maintain temporary partitions to prevent spread of dust, odors, and noise to permit continued Owner occupancy.

I. Schedule completion of asbestos removal prior to demolition.

3.3 DEMOLITION REQUIREMENTS

A. Use of explosives is not permitted without prior approval by Owner.

B. Conduct demolition to minimize interference with adjacent structures and plant operations.

C. Do not close or obstruct roadways, sidewalks, or hydrants without permits.

D. Provide appropriate temporary signage including signage for exit or building egress.

E. Do not close or obstruct building egress path.

F. Protection:
1. Structural stability of structures adjacent to or affected by demolition work shall be the Contractor’s responsibility.
2. Prevent movement or settlement of adjacent structures. Provide bracing and shoring as required.
3. Maintain in service and protect from damage existing facilities, utilities, and equipment to remain.
4. Existing landscaping materials, trees, appurtenances, structures, and utilities indicated to remain.
5. Erect and maintain weatherproof closures for exterior openings.
1.
G. Cease operations immediately when adjacent structures appear to be in danger. Notify Architect/Engineer. Do not resume operations until directed.

H. Conduct operations with minimum interference to public or private accesses. Maintain egress and access at all times.

I. Obtain written permission from adjacent property owners when demolition equipment will traverse, infringe upon, or limit access to their property.

J. Sprinkle Work with water to minimize dust. Provide hoses and water connections required for this purpose.

3.4 DEMOLITION

A. Conduct demolition work as shown on the Drawings.

B. Disconnect, remove and cap designated utilities within demolition areas. Remove utilities and piping to limits shown on the Drawings. Plug or seal permanently with steel cap, concrete plug, or other approved method. Remove abandoned utilities and underground piping within influence zone of proposed piping and structures.

C. Remove foundation walls and footings to minimum of two feet below finished grade within area of new construction unless shown otherwise on the Drawings.

D. Remove concrete slabs-on-grade.

E. Empty underground tanks located within demolition area.

F. Fill underground tanks with fill material as specified in Section 02320. Disconnect and remove piping.

G. Carefully remove building components indicated to be reused.
1. Disassemble components as required to permit removal.
2. Package small and loose parts to avoid loss.
3. Mark components and packaged parts to permit reinstallation.
4. Store components, protected from construction operations, until reinstalled.

H. Backfill areas excavated, open pits, and holes resulting from demolition, in accordance with Section 02320.

I. Rough grade and compact areas affected by demolition to maintain site grades and contours as shown on the Drawings.

J. Continuously clean up and remove demolished materials from site. Do not allow materials to accumulate on site.

K. Remove demolished materials from site except where specifically noted otherwise. Do not burn or bury materials on site.

L. Remove temporary Work.
A.
3.5 SALVAGE

A. Salvage materials indicated on the Drawings.

B. Owner has first right to building components, piping, valves, wire and equipment being removed.
1. Coordinate with Owner to identify items to be removed and delivered to Owner

C. Tag components and equipment Owner designates for salvage.

D. Protect designated salvage items from demolition operations until items can be removed.

E. Package small and loose parts to avoid loss.

F. Mark equipment and packaged parts to permit identification and consolidation of components of each salvaged item.

G. Remove and dispose of all piping, valves and equipment from site not required by Owner.

3.6 DISPOSAL

A. All waste materials from demolition work shall be removed from the site and disposed of in accordance with all applicable laws and regulations.


END OF SECTION