SPECS 040531 DIVISION 04 _ MASONRY - TUCK POINTING.docx
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- Z2DA--ICU-ENDO Window Replacement (436-24-120) Federal contract opportunity
- Solicitation number
- 36C25924R0048
About this file
This document outlines a federal contract opportunity for window replacement work at a Veterans Affairs medical center. The scope of work involves removing 15 existing windows on the third floor of Building 154 and replacing them with fixed casement aluminum windows. The contractor must follow infection control measures, phase the work, and coordinate with facility staff. The period of performance is 90 days from the notice to proceed. The contractor must provide a one-year warranty and develop a quality control plan. Work hours are limited to Monday through Friday from 7:00 AM to 5:00 PM, excluding federal holidays. The contracting agency is the Department of Veterans Affairs Veterans Health Administration VISN 19.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| S04 - Site Visit Log Attendance - 14 Feb 24_FE.pdf | ||
| S04 - Site Visit Meeting Doc_FE.docx | DOCX document | |
| S05 - RFIs Site Visit- Responses - ICU Endo Window Replacement - 436-24-120.docx | DOCX document | |
| S02 - 2_436.436-05-102.154.AE102.BUILDINGS 154 - FIRST FLOOR PLAN WINDOW DETAILS.pdf | ||
| 36C25924R0048 0003.docx | DOCX document | |
| 36C25924R0048 0002.docx | DOCX document | |
| 36C25924R0048 0001.docx | DOCX document | |
| PCRA - 436-24-120 Bldg 154 ICU-ENDO Window Replacement.pdf | ||
| SPECS BUILDING ICU-ENDO WINDOW REPLACEMENT.pdf | ||
| DWG SCHEM ICU-ENDO 3rd Floor.pdf | ||
| 36C25924R0048.docx | DOCX document | |
| S02 - ICRA ICU-ENDO WINDOW REPLACEMENT.docx | DOCX document | |
| SPECS 040513 DIVISION 04 _ MASONRY - MORTARING.docx | DOCX document |
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Text version
Environment of Care Phase II 436-SLP-104
SECTION 04 05 31
MASONRY TUCK POINTING
PART 1 GENERAL
1.1 DESCRIPTION
This section specifies requirements for tuck pointing of existing masonry.
1.2 RELATED WORK
Mortars: Section 04 05 13, MASONRY MORTARING.
1.3 APPLICABLE PUBLICATIONS
| A. | Publications listed below form a part of this specification to extent referenced. Publications are referenced in the text by basic designation only. |
| B. | American Society for Testing and Materials (ASTM): |
| C6707 | Brick and Structural Clay Tile, Sampling and Testing |
| C21607 | Facing Brick (Solid Masonry Units Made From Clay or Shale) |
| C270-07 | Mortar for Unit Masonry |
| C. | International Masonry Institute: Recommended Practices and Guide Specifications for Cold Weather Masonry Construction. |
PART 2 – PRODUCTS
2.1 TUCK POINTING MORTAR
Use of Type N mortar is required in compliance with ASTM-C270. Product is to be submitted for approval. Sand selection shall be made to ensure consistency in mortar coloration to match existing.
2.2 REPLACEMENT MASONRY UNITS
| A. | Face Brick: |
| 1. | ASTM C216, Grade SW, Type FBS. Brick shall be classified slightly efflorescent or better when tested in accordance with ASTM C67. |
| 2. | Face brick shall match facing brick of the existing building(s) that is being tuck pointed. Submit sample of brick in accordance with 01 33 23 SHOP DRAWING, PRODUCT DATA, and SAMPLES |
| B. | Other Units to match existing. |
PART 3 EXECUTION
3.1 CUT OUT OF EXISTING MORTAR JOINTS
| A. | Cut out existing mortar joints (both bed and head joints) and remove by means of a toothing chisel or a special pointer's grinder, to a uniform depth of to 19 mm (3/4inch), or until sound mortar is reached. Take care to not damage edges of existing masonry units to remain. |
| B. | Remove dust and debris from the joints by brushing, blowing with air or rinsing with water. Do not rinse when temperature is below freezing. |
3.2 JOB CONDITIONS
| A. | Protection: Protect newly pointed joints from rain, until pointed joints are sufficiently hard enough to prevent damage. |
| B. | Cold Weather Protection: |
| 1. | Tuck pointing may be performed in freezing weather when methods of protection are utilized. |
| 2. | Comply with applicable sections of "Recommended Practices for Cold Weather Construction" as published by International Masonry Industry All Weather Council. |
| 3. | Existing surfaces at temperatures to prevent mortar from freezing or causing other damage to mortar. |
3.3 INSTALLATION OF TUCK POINTING MORTAR
| A. | Immediately prior to application of mortar, dampen joints to be tuck pointed. Prior to application of pointing mortar, allow masonry units to absorb surface water. |
| B. | Tightly pack mortar into joints in thin layers, approximately 6 mm (1/4inch) thick maximum. |
| C. | Allow layer to become "thumbprint hard" before applying next layer. |
| D. | Pack final layer flush with surfaces of masonry units. When mortar becomes "thumbprint hard", tool joints. |
3.4 TOOLING OF JOINTS
| A. | Tool joints with a jointing tool to produce a smooth, compacted, concaved joint. |
| B. | Tool joints in patch work with a jointing tool to match the existing surrounding joints. |
3.5 REPLACEMENT OF MASONRY UNITS
| A. | Cut out mortar joints surrounding masonry units that are to be removed and replaced. |
| 1. | Units removed may be broken and removed, providing surrounding units to remain are not damaged. |
| 2. | Once the units are removed, carefully chisel out the old mortar and remove dust and debris. |
| 3. | If units are located in exterior wythe of a cavity or veneer wall, exercise care to prevent debris falling into cavity. |
| B. | Dampen surfaces of the surrounding units before new units are placed. |
| 1. | Allow existing masonry to absorb surface moisture prior to starting installation of the new replacement units. |
| 2. | Butter contact surfaces of existing masonry and new replacement masonry units with mortar. |
| 3. | Center replacement masonry units in opening and press into position. |
| 4. | Remove excess mortar with a trowel. |
| 5. | Point around replacement masonry units to ensure full head and bed joints. |
| 6. | When mortar becomes "thumbprint hard", tool joints. |
3.6 CLEANING
| A. | Clean exposed masonry surfaces on completion. |
| B. | Remove mortar droppings and other foreign substances from wall surfaces. |
| C. | First wet surfaces with clean water, then wash down with a solution of soapless detergent specially prepared for cleaning brick. |
| D. | Brush with stiff fiber brushes while washing, and immediately thereafter hose down with clean water. |
| E. | Free clean surfaces from traces of detergent, foreign streaks or stains. Protect materials during cleaning operations including adjoining construction. |
| F. | Use of muratic acid for cleaning is prohibited. |
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