Addendum 1
1 MB Posted
- Attached to
- 2021 Millen CDBG
- Solicitation number
- 2022-003
- Issued by
- Seminole County, Georgia
About this file
This Addendum Number 1, dated September 19, 2022, pertains to the Parker Engineering Project PE21101 for the 2021 Millen CDBG in the City of Millen, Georgia. The addendum addresses contractor questions regarding acceptable materials for manhole rehabilitation and monolithic liner portions of the project. Specifically, the Owner/Engineer approved three Vortex product alternatives: Quadex I&I Guard-PRF (Vortex) as an acceptable infiltration control grout material for manhole rehabilitation; Quadex Hyperform (Vortex) as an acceptable patching material equal to Strong-Seal for manhole rehabilitation; and Quadex QM-1S (Vortex) as an acceptable cementitious resurfacer equal to SewperCoat or Strong-Seal MS-2A for the monolithic liner portion. Bidders are required to acknowledge receipt of this addendum by inserting its number in their bid form Section 00400, with failure to do so potentially resulting in disqualification.
The addendum includes technical data sheets for the approved Vortex products detailing their specifications, performance characteristics, application methods, and warranty information. I&I Guard-PRF is a two-part polyurethane grout with a 3-5 second reaction time designed to stop high-flow infiltration up to 50 gallons per minute. Hyperform is a one-component rapid-setting patching material achieving compressive strengths exceeding 7,000 psi at 28 days, supplied in 60-pound bags. QM-1s Restore is a Portland cement-based fiber-reinforced mortar achieving compressive strengths exceeding 9,000 psi at 28 days, designed for vertical and overhead repairs to concrete or masonry structures. All products include standard Quadex warranties covering defects in material and workmanship for one year from purchase.
Text of this file
ADDENDUM NUMBER 1
September 19th, 2022
Project: Parker Engineering Project Number: PE21101
2021 Millen CDBG City of Millen
ACKNOWLEDGE RECEIPT OF THIS ADDENDUM BY INSERTING ITS NUMBER IN
YOUR BID FORM – SECTION 00400. FAILURE TO DO SO MAY SUBJECT BONA FIDE
BIDDERS TO DISQUALIFICATION. THIS ADDENDUM FORMS A PART OF THE
BIDDING DOCUMENTS WHICH ARE HERBY MODIFIED IN THE FOLLOWING
RESPECTS:
I. CONTRACTOR QUESTIONS
A. Will the Owner/Engineer accept the Quadex I&I Guard-PRF (Vortex) as an acceptable infiltration control grout material for the manhole rehabilitation portion of this project?
Yes; Vortex products are acceptable.
B. Will the Owner/Engineer consider Quadex Hyperform (Vortex) as an acceptable patching material equal to the Strong-Seal for the manhole rehabilitation portion of this project?
C. Will the Owner/Engineer consider Quadex QM-1S (Vortex) as an acceptable cementitious resurfacer equal to SewperCoat or Strong-Seal MS-2A for the monolithic liner portion of this project?
END ADDENDUM #1
REV. 04-13-2021 1-855-WHYDIG1 | www.vortexcompanies.com
Fast Acting Grout for High Flow Leakage: 300ml x 300ml Cartridge
DESCRIPTION
I&I Guard®-PRF is a two-part poly urethane grout used to stop high flow infiltration. Easy injection method creating curtain of grout on the outside of underground structures. Super fast cure allows for immediate reduction in infiltration. Best when used in conjunction with Quadex® branded rehab systems.
ADVANTAGES
| • | Fast reacting |
| • | Easy to use cartridges |
| • | No mixing |
| • | Self contained packaging |
| • | Non Hazardous |
| • | No shrinkage |
| • | Expands 10 times liquid |
PHYSICAL PROPERTIES
| • | VOC content: 0% |
| • | Color: Amber |
| • | Specific gravity: 1.06 B side, 1.23 A side |
| • | Reaction time: 3-5 s |
| • | Expansion time: 30 s |
MIX RATIO
1 to 1 by volume
PACK AGING
300ml x 300ml Cartridge
* The values stated in inch-pound units are to be regarded as the standard. The values given in International System are for information only.
TECHNICAL DATA SHEET
APPLICATION INFORMATION
Stopping leaks in manholes, vaults, lift stations, pipelines, etc. Can be used to stop leaks up to 50 gallons | 189 liters per minute. Used primarily to stop high inflow and infiltration.
DIRECTIONS
1. Drill 5/8-inch | 15.88 mm completely through the structure.
| 2. | Remove nut from cartridge. |
| 3. | Slide nut onto static mixing tip. |
| 4. | Insert static mixing tip in to drilled hole. |
| 5. | Remove cap plug from cartridge hold the cartridge |
upright.
6. Attach cartridge to static mixing tip by tightening the nut.
| 7. | Use cartridge gun by pumping handle to dispense grout. |
| 8. | Continue to pump handle until the cartridge is empty or |
until you no longer pump handle.
SAFETY
Always use safety glasses and protective clothing including gloves when using this product.
STORAGE
Store between 40°F | 4.4°C and 100°F | 37.8°C.
DISPOSAL
Dispose of cartridge in adherence with local regulations.
REV. 08-27-2021 1-855-WHYDIG1 | www.vortexcompanies.com
Rapid Set High Early Strength Patching Material
DESCRIPTION
Hyperform® is a one component, rapid setting, high early strength patching material designed for repairing vertical and horizontal concrete and masonry structures.
TYPICAL PERFORMANCE CHARACTERISTICS*
• Compressive Strength (ASTM C39) 30 minutes >1,200 psi | 8.27 MPa 1 hour >2,500 psi | 17.24 MPa 1 day >4,000 psi | 27.58 MPa 28 days >7,000 psi | 48.26 MPa
• Bond Strength (ASTM C882) 28 day >3,000 psi | 20.68 MPa
• Shrinkage (ASTM C596) 28 Days ≤ 0.02%
* The values stated in inch-pound units are to be regarded as the standard. The values given in International System are for information only.
FEATURES AND BENEFITS
| • | Rapid-setting |
| • | High early and ultimate strengths |
| • | Non-Shrinking |
| • | No Calcium Chloride |
| • | Ready to use, just add water |
| • | Excellent resistance to freeze thaw |
RECOMMENDED FOR
| • | Filling large voids in manhole walls |
| • | Reconstructing inverts |
| • | Concrete repair and patching |
| • | Pipe repair |
PACK AGING
Hyperform is supplied in 60 lb. | 27.2 kg. poly-lined bags or 50 lb. | 22.68 kg. plastic pails.
YIELD
One 60 lb. | 27.2 kg. bag of Hyperform will yield approximately 0.48 cu. ft. | 0.013 cu. m. and will cover 11.5 sq.
ft. | 1.07 sq. m. at a 0.5 in. | 12.7 mm thickness.
APPLICATION INFORMATION
Prepare surface to be patched by removing all loose concrete by using an air or electric hammer. Next, sandblast or water blast surface to clean away all contaminants, such as oil, chemicals, or dust. Then rinse with potable water to remove all remaining dirt, sand and loose debris.
Mix Hyperform with clean potable water at a rate of 1.0 gallon | 3.78 liter per 60 lb. | 27.2 kg. bag. If needed, Hyperform can be extended with 3/8 in. | 9.5 mm aggregate at a rate of 25 lb.
| 11.34 kg. per bag.
PRECAUTIONS
Avoid eye contact or prolonged contact with skin. Wash thoroughly after use. Persons using Hyperform should wear necessary eye protection, dust mask and rubber gloves.Read all product labels and technical literature.
WARRANTY
Quadex, LLC warrants its products to be free of defects in material and workmanship. Unless superseded by project specifications and terms agreed upon in writing between installer and Quadex prior to bid, if within one year from purchase, any Quadex, LLC product is proven defective, the company will replace said product or refund its purchase price at its sole discretion. The company’s obligation shall be limited solely to such replacement or refund. There are no other warranties by Quadex, LLC, expressed or implied. There is no warranty if Quadex products are used contrary to Quadex, LLC’s written directions.
REV. 09-25-2021 1-855-WHYDIG1 | www.vortexcompanies.com
Portland-Based Structural Liner Mortar
DESCRIPTION
QM-1s Restore® is a Portland cement based, single component, high strength, fiber reinforced, shrinkage compensated cement mortar enhanced with a monocrystalline quartz aggregate.
QM-1s Restore was designed to structurally repair deteriorated metal, concrete and masonry structures. QM-1s Restore delivers a monolithic one pass vertical surface application up to three inches in thickness by low pressure spraying or centrifugally casting.
TYPICAL PERFORMANCE CHARACTERISTICS
• Compressive Strength 28 Day
(ASTM C39)
>9,000 psi
• Flexural Strength (ASTM C293) >1,000 psi
• Bond Strength (ASTM C882) >1,500 psi
• Freeze-Thaw (ASTM C666) No visible damage after 300 cycles
• Permeability (ASTM C1202) 350 Coulombs
• Density
132 +/- 5 PCF
• Shrinkage (ASTM C596) 0% @ 28 days
RECOMMENDED FOR
Vertical and overhead repairs to concrete or masonry sewer manholes, wetwells, metal pipes, water treatment facilities, tunnels, navigation locks, and dams.
FEATURES AND BENEFITS
• Quality controlled, one-component blend for uniform results
• High early and ultimate compressive, flexural and bond strengths
| • | Resistant to sulfate attack |
| • | Low permeability |
PACK AGING
QM-1s Restore is supplied in 60 lb. | 27.2 kg. poly-lined bags.
YIELD
One 60 lb. | 27.2 kg. bag of QM-1s Restore will yield approximately 0.51 cu.ft. | 0.014 cu.m. and will cover 12.2 sq.ft | 1.13 sq.m. at a 1/2-inch | 12.7 mm thickness.
1-855-WHYDIG1 | www.vortexcompanies.comREV. 09-25-2021
PROCEDURE
Prepare surface to be patched by removing unsound concrete, dirt, dust, oil and other debris using high pressure (min 3,500 psi | 241.3 bar) water blasting. Then rinse with potable water to remove all remaining dirt, sand and loose debris. This will provide a clean, damp surface to facilitate bond.
Use approximately .70 to 1.0 gallons (2.64 to 3.78 liters) of potable water per 60 lb. | 27.2 kg. bag of QM-1s Restore®. First add water to mixer, start the mixer and add QM-1s Restore until mortar is completely mixed.
Apply QM-1s Restore by low pressure spraying on vertical or overhead surfaces to a monolithic thickness of 1/2 to 3-inches | 12.7 to 76.2mm in one pass, trowel to smooth surface.
CURING
Cure in accordance with current ACI and manufacturer recommendations.
WARRANTY
Quadex, LLC warrants its products to be free of defects in material and workmanship. Unless superseded by project specifications and terms agreed upon in writing between installer and Quadex prior to bid, if within one year from purchase, any Quadex, LLC product is proven defective, the company will replace said product or refund its purchase price at its sole discretion. The company’s obligation shall be limited solely to such replacement or refund. There are no other warranties by Quadex, LLC, expressed or implied.
There is no warranty if Quadex products are used contrary to Quadex, LLC’s written directions.
PRECAUTIONS
Avoid eye contact or prolonged contact with skin. Wash thoroughly after use. Persons using QM-1s Restore should wear necessary PPE consisting at minimum of eye protection, dust mask and rubber gloves. Read all product labels and technical literature.
REV. 08-27-2021 1-855-WHYDIG1 | www.vortexcompanies.com
Fast Setting Cementitious Waterstop
DESCRIPTION
Quad-Plug® is a blend of special cements and admixtures which are designed to instantly stop running water or seepage in all types of concrete and masonry structures.
TYPICAL PERFORMANCE CHARACTERISTICS*
• Compressive Strength (ASTM C39) 30 min. >1,500 psi | 10.34 MPa
• Bond Strength (ASTM C882) 28 day >500 psi | 3.45 MPa
* The values stated in inch-pound units are to be regarded as the standard. The values given in International System are for information only.
PACK AGING
Quad-Plug is supplied in a 50 lb. | 11.34 kg. plastic pail.
YIELD
Quad-Plug will yield approximately 0.49 cu. ft. | 0.014 cu. m.
per pail.
APPLICATION INFORMATION
To Seal Running Water or Leaks Prepare crack or hole by chipping out loose material to a minimum depth and width of 0.75 in. | 19.05 mm. Using a rubber gloved hand, place a generous amount of dry Quad- Plug to active leak and maintain external pressure for 60 seconds. Repeat until leak stops.
WARRANTY
Quadex, LLC warrants its products to be free of defects in material and workmanship. Unless superseded by project specifications and terms agreed upon in writing between installer and Quadex prior to bid, if within one year from purchase, any Quadex, LLC product is proven defective, the company will replace said product or refund its purchase price at its sole discretion. The company’s obligation shall be limited solely to such replacement or refund. There are no other warranties by Quadex, LLC, expressed or implied.
There is no warranty if Quadex products are used contrary to Quadex, LLC’s written directions.
PRECAUTIONS
Avoid eye contact or prolonged contact with skin. Wash thoroughly after use. Persons using Quad-Plug should wear necessary eye protection, dust mask and rubber gloves. Read all product labels and technical literature.
RECOMMENDED FOR
| • | Sewer Pipes and Manholes |
| • | Concrete Tanks |
| • | Elevator Pits |
| • | Cisterns |
| • | Basements |
| • | Concrete & Masonry Walls |
FEATURES AND BENEFITS
| • | Stops running water immediately |
| • | Non-Shrink, expands as it sets |
| • | Contains no calcium chloride |
| • | Non-Metallic |
| • | Sulfate resistant |
| • | Easily applied |
| • | No Mixing |
Other files
| File | Type | Posted |
|---|---|---|
| Award Information | — | |
| Bid Document | — | |
| Addendum 2 | — |
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