04_01_00_MaintenanceofMasonry.doc
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- SIMPLIFIED ACQUISITION OF BASE ENGINEERING REQUIREMENTS (SABER) Federal contract opportunity
- Solicitation number
- FA6656-12-R-0003
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Specification 04 01 00 Maintenance of Masonry for FA6656-12-R-0003
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| PROJECT NAME | FIRM NAME |
| City, State | Date, 2009 |
04 01 00-2
SECTION 04 01 00
MAINTENANCE OF MASONRY
| GENERAL | |
| SUMMARY | |
| Provide masonry restoration and cleaning. | |
| SUBMITTALS | |
| Product Data: Submit manufacturer's product data and installation instructions for each material and product used. |
| Mortar Mix: Submit for approval mortar mix proposed for use. | |
| QUALITY ASSURANCE | |
| Perform test cleaning to demonstrate/select appropriate cleaning materials, mixes, and methods. | |
| Comply with governing codes and regulations. Provide products of acceptable manufacturers which have been in satisfactory use in similar service for three years. Use experienced installers. Deliver, handle, and store materials in accordance with manufacturer's instructions. | |
| Mock-Ups: Provide mock-up as required to demonstrate quality of workmanship for each type of repointing and cleaning. | |
| PROJECT CONDITIONS | |
| Protect persons and property from injury and damage from cleaning operations. Do no work when winds prevent control of sand, cleaners or rinse water. Dispose of run-off in a legal manner. For chemical cleaning, clean only when ambient 40 degrees F temperature and above will be maintained during cleaning and seven days after. | |
| PRODUCTS | |
| MATERIALS | |
| Masonry Restoration: | |
| Manufacturers: ProSoCo, Inc.; or approved equal. | |
| Application: Repointing mortar joints. | |
| Application: Repair of damaged clay masonry. | |
| Application: Repair of damaged stone masonry. | |
| Application: Repair of damaged terracotta. | |
| Application: Re-anchoring veneer. | |
| Application: Stone consolidation treatment. | |
| Materials: Masonry repair anchors and stone consolidation treatment. | |
| Materials: Repointing mortar. | |
| Strength: Suitable for project conditions. | |
| Appearance: Match existing. | |
| Portland cement: ASTM C 150, Type I. | |
| Hydrated Lime: ASTM C 207, Type S. | |
| Aggregate for Mortar: ASTM C 144. | |
| Colored Mortar Aggregate: Colored sand. | |
| Colored Mortar Pigment: Iron oxides and chromium oxides. | |
| Aggregate for Grout: ASTM C 404. | |
| Masonry Cleaning: | |
| Manufacturers: Diedrich Chemical Restoration Technologies; Hydrochemical Techniques; National Restoration; ProSoCo, Inc.; or approved equal. | |
| Application: Removal of plant growth. | |
| Application: Water washing and cleaning exposed masonry surfaces. | |
| Application: Chemical cleaning exposed masonry surfaces. | |
| Materials: Compatible with existing materials; visual matching. | |
| Materials: Medium pressure water and steam. | |
| Materials: Alkaline prewash cleaner, chemical paint remover, and chemical cleaner. | |
| EXECUTION | |
| INSTALLATION | |
| Chemical Cleaning: | |
| Comply with cleaning chemical manufacturer's instructions, recommendations, and precautions. | |
| Protect adjacent surfaces with masking agent or other effective means. | |
| Clean surfaces in strict conformance with approved field tests and match mock-up panels. | |
| Provide uniform final appearance. | |
| Repointing: | |
| Obtain materials from one source to maintain color/texture/quality consistency. | |
| Work only when ambient 40 degrees F to 80 degrees F temperature will be maintained until 72 hours after completion. | |
| Remove old mortar by hand chisel and mallet, unless Contractor can demonstrate that power tools will not damage masonry. | |
| Rake out old mortar to depth equal to 2-1/2 times joint width and in no case less than 1/2 inch or depth required to expose sound mortar. | |
| Do not damage masonry units. | |
| Rinse joints and install pointing mortar in 1/2 inch deep layers. | |
| Tool joints to match existing and cure mortar for not less than 72 hours. | |
| After pointing, clean masonry using Tampico fiber brushes and running water. | |
| Schedule: [Refer to Drawings for extent.] [Following are examples only.] | |
| Repointing Mortar Joints: [10 percent of exterior wall.] | |
| Repair of Damaged Clay Masonry: [Spalled masonry units.] | |
| Repair of Damaged Stone Masonry: [Cracked or spalled stone.] | |
| Repair of Damaged Terracotta: [10 percent custom replacement units, 30 percent patch and repair.] | |
| Re-anchoring Veneers: [List areas]. | |
| Stone Consolidation Treatment: [List areas]. | |
| Masonry Cleaning Schedule: [List areas]. |
END OF SECTION
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