04 05 13 - Masonry Mortaring.pdf
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- West Pump Station Replacement Project
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- Chester County, Pennsylvania
About this file
This is a Masonry Mortaring specification document prepared by Herbert, Rowland & Grubic, Inc. for the West Pump Station Replacement Project in Chester County, Pennsylvania, administered by Northwestern Chester County Municipal Authority. The specification details the requirements for mortar materials and installation for masonry work as part of the broader pump station replacement project, which includes construction of a new suction lift style pump station with building and site improvements, demolition of the existing pump station, sanitary sewer piping and manholes, grinder pump installation, force main piping, fencing, pavement, and electrical connections. The project involves three separate bid contracts: WPS-1 for General Construction, WPS-2 for Electrical Construction, and WPS-3 for Mechanical Construction, with bids due online by May 20, 2026 at 10:00 AM local time on a lump sum basis. Bidding documents are available through the designated website https://pennbid.bonfirehub.com/, with prospective bidders urged to register as plan holders for access to updates, addenda, and official notifications.
The mortaring specification requires compliance with ASTM standards and The Masonry Society guidelines, with materials including Type I Portland cement, standard masonry aggregate compliant with ASTM C144, Type S hydrated lime, and potable water. The specification mandates Type S mortar mixes for both structural and non-structural masonry applications in accordance with ASTM C270, prohibits calcium chloride, and specifies Dry-Block water repellent as manufactured by Grace Construction Products. Installation must follow TMS 402/602 standards with field quality control including mortar mix establishment per ASTM C270, proper mixing procedures within specified timeframes, and adherence to cold and hot weather requirements. The manufacturer must demonstrate a minimum of three years' experience, provide product samples illustrating color and color range, submit manufacturer instructions and certifications, and provide qualifications documentation prior to project execution.
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Text version
04 05 13 – MASONRY MORTARING
Herbert, Rowland & Grubic, Inc. 04 05 13 - 1 000483.0450
SECTION 04 05 13 – MASONRY MORTARING
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes: Mortar for masonry.
B. Related Requirements:
1. Section 04 20 00 – Unit Masonry: Installation of mortar.
1.2 REFERENCE STANDARDS
A. ASTM International:
1. ASTM C5 - Standard Specification for Quicklime for Structural Purposes.
2. ASTM C91 - Standard Specification for Masonry Cement.
3. ASTM C144 - Standard Specification for Aggregate for Masonry Mortar.
4. ASTM C150 - Standard Specification for Portland Cement.
5. ASTM C199 - Standard Test Method for Pier Test for Refractory Mortars.
6. ASTM C206 - Standard Specification for Finishing Hydrated Lime.
7. ASTM C270 - Standard Specification for Mortar for Unit Masonry.
8. ASTM C387 - Standard Specification for Packaged, Dry, Combined Materials for
Concrete and High Strength Mortar.
9. ASTM C595 - Standard Specification for Blended Hydraulic Cements.
10. ASTM C780 - Standard Test Method for Preconstruction and Construction
Evaluation of Mortars for Plain and Reinforced Unit Masonry.
11. ASTM C1142 - Standard Specification for Extended Life Mortar for Unit Masonry.
12. ASTM C1314 - Standard Test Method for Compressive Strength of Masonry
Prisms.
13. ASTM C1329 - Standard Specification for Mortar Cement.
14. ASTM C1357 - Standard Test Methods for Evaluating Masonry Bond Strength.
B. The Masonry Society:
1. TMS 402/602 - Building Code Requirements and Specification for Masonry
Structures.
1.3 SUBMITTALS
A. Section 01 33 00 – Submittal Procedures: Requirements for submittals.
B. Samples: Submit two samples of mortar, illustrating mortar color and color range.
C. Manufacturer's Certificate: Certify that products meet or exceed specified requirements.
D. Manufacturer Instructions: Submit installation instructions.
E. Field Quality-Control Submittals: Indicate results of Contractor-furnished tests and inspections.
Herbert, Rowland & Grubic, Inc. 04 05 13 - 2 000483.0450
F. Qualifications Statement:
1. Submit qualifications for manufacturer.
1.4 QUALITY ASSURANCE
A. Comply with TMS 402/602.
1.5 QUALIFICATIONS
A. Manufacturer: Company specializing in manufacturing products specified in this Section with minimum three years' experience.
1.6 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 damage.
C. Store materials according to manufacturer instructions.
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.
1.7 AMBIENT CONDITIONS
A. Section 01 50 00 – Temporary Facilities and Controls: Requirements for ambient condition control facilities for product storage and installation.
B. Cold Weather Requirements: Comply with TMS 402/602 if ambient temperature or temperature of masonry units is less than 40 degrees F.
C. Hot Weather Requirements: Comply with TMS 402/602 if ambient temperature is greater than 100 degrees F or ambient temperature is greater than 90 degrees F with wind velocity greater than 8 mph.
PART 2 - PRODUCTS
2.1 MATERIALS
A. Portland Cement:
1. Comply with ASTM C150, Type I.
2. Color: Gray.
B. Mortar Aggregate:
1. Comply with ASTM C144.
2. Type: Standard masonry.
Herbert, Rowland & Grubic, Inc. 04 05 13 - 3 000483.0450
C. Hydrated Lime: Comply with ASTM C206, Type S.
D. Water: Clean and potable.
E. Water Repellents:
1. Type: Liquid.
2. Dry-Block, as manufactured by Grace Construction Products.
F. Calcium Chloride: Not allowed.
2.2 MIXES
A. Mortar Mixes:
1. Mortar for Structural Masonry: Comply with ASTM C270, Type S using proportion specification.
2. Mortar for Non-Structural Masonry: Comply with ASTM C270, Type S using proportion specification.
PART 3 - EXECUTION
3.1 PREPARATION
A. Section 01 73 00 – Execution Requirements: Requirements for installation preparation.
B. Mortar Mixing:
1. Thoroughly mix mortar ingredients according to ASTM C270 in quantities needed for immediate use.
2. Achieve uniformly damp sand immediately before mixing process.
3. Add mortar color and admixtures to achieve uniform mix and coloration.
4. Re-temper only within two hours of mixing.
3.2 INSTALLATION
A. According to TMS 402/602.
3.3 FIELD QUALITY CONTROL
A. Section 01 40 00 – Quality Requirements: Requirements for inspecting and testing.
B. Establish mortar mix according to ASTM C270.
END OF SECTION 04 05 13
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