Tuckpointing SOW~1.docx

Statement of Work (SOW) Peoria Army Aviation Support Facility Tuck Pointing and Clay Masonry Unit Replacement

The State of Illinois, Department of Military Affairs, Peoria Army Aviation Support Facility, located at 2323 Airport Road, Peoria, IL 61 607-1464 requires Tuck Pointing an d Clay Masonry Unit Replacement on building 22 - Flight Operations Facility to restore weather tightness and integrity of building.

Vendor to replace fractured and/or spalled clay masonry units, cut and repaint existing mortar joints and replace deteriorated lintels on the Flight Operations Building located on the Peoria Army Aviation Flight Facility #3.

· Vendor to provide all material, tools and equipment to complete the masonry restoration of the Flight Operations Building. Vendor to color match replacement clay masonry units and mortar color to existing material on building.

· Vendor to perform all brick work, repaint, install sealant, wash down, or wet surfaces when temperatures are at or above 45° Fahrenheit.

· Vendor to protect existing windows, roofing, HVAC systems and roof accoutrements from damage during masonry restoration. Vendor will coordinate with on-site maintenance personnel to shut down HVAC systems during point grinding to prevent mortar dust from entering system. Outside HVAC units will be tarped to protect from excessive dust. Vendor to protect roof membrane and flashing from damage, use plywood panels to protect roofing from punctures and other damage.

· Where materials are attached to the masonry (such as signs, antenna mounts, and downspouts) temporarily remove item sufficiently to allow access to the masonry for required work. Reattach or re-install at end of project. Vendor to provide new attachment hardware where missing or unable to reuse hardware due to damage.

· Vendor to remove the damaged or fractured existing mortar joints to a minimum depth of 1 inch, or as much as may be necessary to reach sound material. Take care to avoid damaging existing masonry units or enlarging width of joints.

· Replace existing masonry units damaged by spalling and chipping caused by weathering, wear & tear, or routing operations. Replace lintels that are damaged by rust and warping to restore structural strength. Lintels replaced will be same size and dimensions of existing material.

· Thoroughly remove loose material from joints using a hose stream under normal pressure or by low pressure compressed air. Final preparation of the joint shall be done by hand.

· Mortar should be mixed carefully to obtain uniformity of visual and physical characteristics, and comply with ASTM-C270.

· Material proportions by volume to produce type N minimum strength: One part cement, one part lime, 6 parts sand. Thoroughly mix lime, Portland cement and sand prior to adding water. Add one half the water volume and mix for 5 minutes. Remaining water should be added in small amounts until desired consistency is reached. Mortar should be used within 30 minutes of final mixing. Re-tempering is not permitted.

· After carefully routing and cleaning joints, wet joints thoroughly and then apply fresh repainting mortar. Allow water to soak into joints, but joints shall not be visibly wet with standing water during tuck pointing.

· Fill mortar joints in layers not over 1/4" thick with each layer applied with pressure as soon as previous layer has partially dried. Do not tool each layer smooth; leave surface rough to help bond of subsequent layers. Compress the final packing as much as possible to completely fill joint. Compact joints solidly before final tooling.

· Tool joints concave to match existing. Take care to not spread mortar over edges of brick onto exposed surfaces. Do not featheredge mortar. Cure mortar by maintaining in a damp condition for 5 days. Allow mortar to fully harden for 10 days after completion of work. Thoroughly clean exposed masonry surfaces of excess mortar and foreign matter using stiff nylon or bristle brushes and cleaning agent.

· Promptly as work proceeds and upon completion, remove excess mortar, smears, efflorescence and droppings.

· Before cleaning verify that all mortar joints in area to be cleaned have been repainted and are sufficiently hard for cleaning. Test areas to be cleaned to determine the most effective cleaning method starting with the gentlest means possible utilizing brush and water wash at low to medium pressure. If alkaline or acidic cleaning methods are necessary, mask off areas below to protect finishes that may be damaged by chemical cleaners. Start cleaning at the lowest designated wall area and proceed to the top of the wall always keeping surfaces wet below the area being cleaned and rinse frequently to reduce the potential for streaking. After the designated area has been cleaned, wash down the wall areas below.

The use of abrasive cleaning will not be permitted.

· Acceptable manufacturers of cleaning agents:

a. ProSoCo

b. Hydrozo

c. Diedrich Technologies

· Expansion joint sealant material shall be a one component exterior type urethane non-sag (gun) grade with elasticity to provide +25% movement capability. Color of sealant shall match existing mortar color. Comply with Federal Specification TT-S-00230C, Type II, Class A. Acceptable manufacturers:

a. Tremco, DyMonic

b. SIKA Corporation, Si kafl ex-l a.

c. Sonneborn Building Products, Sonolastic NP-1.

· Backer rod shall be round polyethylene closed-cell foam of such diameter to assure compression when placed, and be compatible with the sealant selected.

· At end of each day's work, sweep up and remove sand, mortar droppings, dust, dirt, debris, and rubbish.

· At completion of this work, remove all construction aids and insure that all sand, mortar droppings, debris, and rubbish have been removed.

The work will take place at the Peoria Army Aviation Support Facility, located at 2323 Airport Road, Peoria, IL 61607-1464.

A non-mandatory site visit is scheduled for October 8, 2019 at 10:00 am. The site visit is encouraged for vendor to understand the project scope.

Points of Contact for this action are as follows:

Ron Jeanblanc, Facilities Manager Department of Military Affairs, Galesburg Readiness Center 362 N. Linwood Road Galesburg, IL 61401 Office: (309) 567-4218 Cell: (217) 685-0943 Email: ron.a.jeanblanc.nfg.mil@m ail.mil