QA Substitution Request 4_final.pdf

S-10700-00013306 CMPS Structural Upgrades Page 1 of 1

Q&A / MATERIAL SUBSTITUTION REQUEST #4

All substitution requests received before 4/30/25 2:00pm. All material/product information attached hereto.

REQUESTED MATERIAL/PRODUCT A&E / DAS ANSWERS

1 SRS 4000 Concrete Guard A&E: Approved

2 SRS-600 UNI Carbon Fiber Fabric A&E: Approved

3 SRS-1000 Structural Epoxy Adhesive A&E: Approved

4 SRS-2100 Concrete Repair Paste A&E: Approved

Environmentally Friendly Restricts Water Ingress Improves Structural Integrity

Inhibits Chloride Mitigation Extremely Durable Improves Structural Integrity

KEY BENEFITS

SRS 4000 Concrete Guard is a clear, water-based solution that enhances concrete strength and reduces porosity. Ideal for weak and contaminated surfaces. Improves durability and adhesion for materials like Carbon Fiber and surface coatings.

Increased Strength:

STRENGTHEN & RESTORE

CONCRETE GUARD

Powered By

Comprehensive Protection: Reduced Porosity:

1-888-292-2592 Structuralrs.comMADE IN THE USA

Enhanced Adhesion:

Provides a stronger surface for the adhesion and application of carbon fiber and coatings.

Chemically active ingredients work to protect and extend the lifespan of concrete structures.

Enhances compressive, tensile, and flexural strength of the concrete.

Decreases concrete porosity, improving overall durability.

TECHNICAL PERFORMANCE

SRS-4000 Concrete Guard is a clear water-based formulation containing chemically active ingredients designed to enhance concrete performance. By reacting with the cement phase of the concrete, SRS-4000 significantly increases compressive, tensile, and flexural strength while reducing porosity.

Concrete is inherently strong in compression but weak in tensile and flexural strength. SRS-4000 addresses this by reinforcing the concrete's tensile strength, which is critical for the durability and performance of bonded surface-applied materials such as polymer fiber-reinforced laminates (FRP) and surface coatings. By enhancing the tensile strength, SRS-4000 ensures better adhesion and effectiveness of these materials, contributing to the overall longevity and integrity of concrete structures.

CONCRETE GUARD

STRENGTHEN & RESTORE

PHYSICAL PROPERTIES

Compressive Strength:

• Compressive Strength By Core Compression

ASTM C-42:

• Before Application: 3400 psi

• After Application: 4300 psi

• Surface Strength By Schmidt Hammer

Method:

• Before Application: 38

• After Application: 45

• Relative Compressive Strength By Capo Pull-Off Method ASTM C900: (Measures dynamic force need to pull a 1X1inch concrete plug for the surface. Force measured in kilo Newtons kN can be converted into compressive strength by relative comparison. Can be considered as the best measure of overall strength of the concrete.)

• Before application: 24 kN force or 3400 psi relative compressive

• After application: 30 kN force or 4500 psi relative compressive

Tensile Strength:

• Measures the force required to pull a 1 inch steel disc glued to concrete surface where failure is the concrete surface reported as pounds per square inch (psi) as run by ASTM C1538:

• Before application: 333 psi

• After Application: 495 psi

• Measure the force required to pull-off a 2 in2 piece of FRP from a concrete surface as run by ASTM D7522 for FRP Bond Strength:

• Before Application: 105 psi

• After Application: 355 psi

Boiling point: 212F Specific gravity: 1.094 Flashpoint: none pH: 12(+/-.5) Appearance and odor: clear liquid with mild chemical odor Shelf life: 24 months in an unsealed factory container Storage: protect from freezing

Flexural Strength:

• Laboratory test measuring the force placed in middle of concrete bar to cause fracture AS run by ASTM C78:

• Before Application: 1066 psi •. After Application: 1277 psi

1-888-292-2592 Structuralrs.comMADE IN THE USA

CAUTION AND FIRST AIDCONCRETE GUARD

APPLICATION PROCEDURE

Surface preparation: Prior to applying SRS- 4000 Concrete Guard the surface must be clean, sound, and reasonably dry.

Application: SRS-4000 Concrete Guard is applied by roller, brush or spray onto the concrete surface. When spraying, use conventional airless spray system or hand-pressure equipment. A minimum of two applications is usually required. Apply liberally until substrate is saturated. Spread with squeegee, brush or roller until adsorbed. Waiting time between applications, will vary depending on environmental conditions and absorbency of substrate, is typically one hour.

When applying prior to installation of a repair mortar, concrete overlay, coating or membrane, care must be taken to remove any SRS-4000 Concrete Guard residue before the mortar or concrete is applied. This can be achieved by rinsing with water, pressure washing or grit blasting. After application, allow substrate to dry before applying coating or membrane.

Distribution rate: should be about 100-120 sf/gal. It can be adjusted depending on project requirements.

Inhalation: If breathing is difficult due to inhalation of vapor or mist, move person to fresh air and administer oxygen. If breathing has stopped give artificial respiration. Keep person warm, quiet, and get medical attention. Eye Contact: Rinse eyes with cool water for 15 minutes. Hold eyelids open during flushing with water. Get medical attention.

Ingestion: If swallowed, immediately drink two glasses of water and induce vomiting. Get medical attention immediately. Do not give anything to an unconscious or convulsing person. For additional information on personal protective equipment, first aid, and emergency procedures, refer to the product Material Safety Data Sheet (MSDS) on the job site or contact the company at the address or phone number given below.

Disposal of container: Triple rinse inside of container, seal opening and dispose of properly.

Handling: SRS-4000 Concrete Guard is to be applied by professional contractors only. All applicators should wear OSHA and NIOSH recommended protective equipment. Do not use or dilute the product in closed areas without adequate ventilation. Immediately close the container after removal of the solution. Avoid contact with skin, eyes and clothing. Do not smoke, eat or drink during application. Wash thoroughly after handling. Keep out of reach of children. Do not inhale or ingest or modify the solution. Refer to MSDS.

Clean Up: In case of spills or leaks, wear suitable protective equipment. Contain spill and collect with absorbent material or process and transfer to a suitable container, ventilate area. Avoid contact. Dispose of in accordance with current, applicable local, state and federal regulations.

Precautions: KEEP OUT OF REACH OF CHILDREN. DO NOT SWALLOW. Use with adequate ventilation. Avoid mist and direct contact with eyes, skin and clothing. Wear suitable protective goggles, gloves, and clothing. In case of insufficient ventilation, wear suitable respiratory equipment. If you feel ill, seek medical advice. Wash clothing prior to re-use.

1-888-292-2592 Structuralrs.comMADE IN THE USA

SRS-600UNI �Ii\) STRUCTURAL

� ...... , REINFORCEMENT SOLUTIONS

CARBON

FIBER

FABRIC

APPLICATIONS

·External Reinforcement of Existing Structures ·Increasing Load Capacity •Confinement •Shear Strengthening ·Flexural Strengthening ·Construction Error Corrections

A unidirectional, high-strength, non-corrosive carbon fiber fabric designed to be field laminated with SRS-1000 Epoxy adhesive to create a carbon fiber-reinforced polymer

(CFRP) composite for structural reinforcement and strengthening of concrete and masonry structures.

•Restoring Damaged/Deteriorated Structural Components •Bowed Wall Stabilization •Seismic Retrofit

ADAVANTAGES

·High Strength to Weight Ratio ·High Modulus of Elasticity •Conforms to Structure ·Easy Installation ·Ambient Cure ·Arrests Structure Movement •Low Aesthetic Impact ·Non-Corrosive •Compatible with Most Finish Coatings

TVPICAL FIBER PROPERTIES

Tensile Strength - 711 ksi (4900 MPa) Tensile Modulus - 33.4 Msi (230 GPa) Elongation - 2.1 0%

Density - .065 lbs/inA3 (1.80 g/cmA3)

CURED LAMINATE PROPERTIES

WITH SRS-100(1:POXV ADHESIVE

PROPERTY

Tensile Strength Tensile Modulus Tensil % Enlongation Nominal Ply Thickness Tensile Strength per in. Width Tensile Strength per 6

Strap

AVE ULTIMATE

195,000 psi (1,352 MPa) 12 Msi (86 GPa) 2 %

0.039 in (0.991 mm) 7,605 lbs/in (1.33 kN/mm) 45,630 lbs (203 kN)

The information provided on this product data sheet represents average values which have been obtained through certified testing performed in a third-party laboratory. As part of the quality assurance program at SRS, these values are verified regularly to ensure that the products being sold are represented accurately by the values on this sheet.

There may be some variation in test results due to epoxy mixing methods, degree of saturation, sample preparation, and curing conditions.

Per the recommendations in ACl-440.2, the ultimate tensile strengths provided represent the average test values minus three times the standard deviation which creates a 99.87% probability that the actual ultimate tensile properties will exceed the statistical based design values.

1-888-292-2592 www.structuralrs.com

DESIGN VALUE

169,000 psi (1,169 MPa)

1%

6,591 lbs/in (1.15kN/mm) 39,546 lbs (176 kN)

TYPICALDATA

Storage Conditions - Store in Dry Area at 40 deg - 95 deg F (4-35 C)

Shelf Life Carbon - 10 years/Epoxy- 2 Years in Unopened Container

Color Carbon - Black/Epoxy - Semi Transparent

Yellowish resin

Primary Fiber Direction - 0° Unidirectional

Areal Weight - 19.5 oz/SY 600 gsm

Made in USA

SRS-600UNI �Ii') STRUCTURAL

�..-., REINFORCEMENT SOLUTIONS

CARBON FIBER ROLL

KIT SIZES DESIGN

All applications containing SRS products must be designed

Roll Size (Width x Length)

·SRS-600UNI 6 11 x 75 LF (37.5 SF)

•SRS-600UNI 6 11 x 200 LF (100 SF)

•SRS-600UNI 12 11 x 100 LF (100 SF) by a registered design professional. The number of layers, dimensions, and detailing of SRS-600UNI shall be designed in accordance with ACI 440.2R or another recognized design guideline/code in order to meet the design performance specified for the application. Contact Structural Reinforcement

Solutions LLC for design and technical support.

SURFACE PREPERATION

The substrate in which the CFRP is being applied to must be clean and free of loose material or contaminants. In order to take advantage of the full bond strength properties of the epoxy, the substrate should be prepared per the requirements of the ICRI Technical Guideline No. 310-2R - 2013. The substrate should be prepared to a minimum concrete surface profile, CSP-3, as defined by ICRI 310-2R. Any voids, cracks, on variations in the surface of the concrete must be filled with an appropriate repair mortar or epoxy in order to provide a smooth surface to bond to. ACI 440.2R-08 provides additional details on the surface preparation requirements for CFRP systems

APPLICATION

Structural Reinforcement Solutions, LLC Carbon Fiber Strengthening Systems should only be installed by professional contractors who have been trained in the application of externally bonded carbon fiber reinforcement. Once the surface preparation has been completed and when cartridge epoxy is being used, the mixing nozzles provided will sufficiently mix the 2:1 epoxy components. If bulk epoxy is being used, follow the epoxy mixing instructions to sufficiently mix the epoxy components prior to the application. Once the epoxy has been mixed, a thin layer should be applied to the surface in which the CFRP is to be bonded. This epoxy should be worked into the substrate to ensure penetration into the pores of the substrate. The carbon fiber should then be laid into the epoxy and worked in to ensure a full saturation of the fabric. To aid in achieving a full saturation of the carbon fiber straps, they can be pre-saturated with epoxy and laid into the same initial layer of epoxy layer as described previously. No matter which way the straps are initially installed, a final layer of epoxy should be applied to the strap and worked in to ensure full saturation. Refer to the full set of installation instructions at www.structuralrs.com to ensure that the appropriate procedures are followed.

(LIMITED)

LIFETIME

WARRANTY

This product is covered by the Structural Reinforcement Solutions LLC

LIMITED LIFETIME WARRANTY, which is available at structuralrs.com or by calling Structural Reinforcement Solutions LLC at 888 292-2952.

FIRST AID

EYES: Wash fibers off skin with water and soap. If fibers are embedded in the skin, remove with tweezers. Discard clothing that may contain embedded fibers. Seek medical advice if exposure results in adverse effects.Eyes: Immediately flush with a continuous water stream for at least 20 minutes. Washing immediately after exposure is expected to be effective in preventing damage to the eyes. Seek medical advice.Inhalation:

If there is inhalation exposure to the fibers of this product, remove source of exposure and move victim to fresh air. If victim is not breathing, give artificial respiration. If there is breathing difficulty, give oxygen. Seek medical advice for any respiratory problems.Ingestion: Ingestion is not a likely means of exposure for this product. If ingestion does occur, DO

NOT INDUCE VOMITING. Nothing by mouth if unconscious. Seek medical advice.

Spill/Release and Cleanup Procedures:

In case of spill, collect (e.g., sweep up, vacuum, etc.) spilled material and either reuse or dispose of properly. Chopped or milled carbon fibers may be slippery if spilled posing an accident risk. Wear personal protective equipment as described in the MSDS during cleanup activities.

CAUTION

Protective Measures: The use of safety glasses and chemically resistant gloves is recommended. Use appropriate clothing to minimize skin contact. The use of NIOSH-approved respirator is required to protect respiratory tract when ventilation is not adequate to limit exposure below the PEL. Refer to Safety Data

Sheets (SDS) available at structuralrs.com/sds for detailed information.

1-888-292-2592 www.structuralrs.com Made in USA

SRS-1000

STRUCTURAL

EPOXY

ADHESIVE

A two-component, high modulus structural epoxy formula designed to provide maximum adhesion of SRS carbon fiber fabric to concrete substrates. SRS 1000 is specially formulated for long pot life, providing extended workability during CFRP application. The ultra-low viscosity formula is also ideal for gravity fed repair of fine to medium cracks in concrete.

APPLICATIONS

�In) STRUCTURAL

�� REINFORCEMENT SOLUTIONS

FEATURES & ADVANTAGES

·Ultra low viscosity formula optimized for carbon fiber saturation and bond strength to concrete substrates.

•Long pot life for extended workability and design strengths in CFRP applications.

·Pressure injection of fine to medium size cracks of approximately 1/8 in. to 1/4 in.

(3.2 mm to 6.4 mm) width.

•Self-leveling, low viscosity and surface tension allows product to deeply penetrate into cracks.

•Saturation and adhesion of carbon fiber fabric to concrete substrates •Repair of spalling concrete •Bonding fresh concrete to hardened concrete or a bonding agent for

APPROVALS AND

CERTIFICATIONS

repairing concrete spalls .... A_S_T_ M_C_8_8_1_/_A _A_S_H_T_O_M _2_3

5 •Gravity feed crack repair for horizontal applications Type I, 11*, IV & V* Grade 1•Low pressure crack injection for vertical, horizontal and overhead Class C. * With exceptions. structural repair

TECHNICAL

DATA

CURE SCHEDULE

Working Time:

60 °F (15 °C) - 45 min;

75 °F (24 °C) - 30 min;

100 °F (38 °C) - 22 min.

NOTE: Working and full cure times are approximate

LIMITATIONS

APPLICATION TEMPERATURE

60 °F and 95 °F (15 °C and 35 °C).

STORAGE AND SHELF LIFE

24 months when stored in unopened containers in dry conditions.

Store between 40 °F (4 °C) and 90 °F (35 °C).

COLOR AND RATIO

Part A (Resin) Clear:

Part B (Hardener) Amber, Mix

Ratio - 2:1 by volume, Mixed Color

- Amber.

Do not thin with solvents, as this may prevent cure. Not intended to repair cracks subject to movement. Product not designed to stop seeping or flowing water. New concrete should be a minimum of 28 days old prior to application

1-888-292-2592 www.structuralrs.com Made in USA

EPOXY

ADHESIVE

�In) STRUCTURAL

�� REINFORCEMENT SOLUTIONS

TABLE 1: SRS-1000 Structural Eooxv Adhesive oerformance to ASTM C881-151.2.3

PROPERTY CURE TIME ASTM STANDARD UNITS

Gel Time - 60 Gram Mass4 ---- min

Viscosity ---- C881 cP

Pot Lifes,6 ---- min

SAMPLE

CONDITl ONI NG

TEMPERATURE

CLASS C

75 °F

(24 °C)

1,336

1. Results based on testing conducted on a representative lot(s) of product. Average results will vary according to the tolerances of the given property. 2. Full cure time is listed above to obtain the given properties for each product characteristic. 3. Results may vary due to environmental factors such as temperature, moisture and type of substrate. 4. Gel time may be lower than the minimum required for ASTM C881. 5. Property not referenced in ASTM C881. 6. Pot life is measured as the workable and applicable time of 1.0 gallon (3.8 L) when mixed.

1-888-292-2592 www.structuralrs.com Made in USA

EPOXY

ADHESIVE

TECHNICAL

DATA

�In) STRUCTURAL

�� REINFORCEMENT SOLUTIONS

TABLE 1: SRS-1000 Structural Eooxv Adhesive oerformance to ASTM C881-151,2,3

SAMPLE CONDITIONING

TEMPERATURE

PROPERTY CURE TIME ASTM STANDARD UNITS

75 °F

(24 ·ci psi 11,783 Compressive Yield Strength

3,153

(MPa) D695

Compressive Modulus psi

7 day (MPa) psi 8,609 Tensile Strength

D638 (MPa)

Tensile Elongation % psi

59.4

1.8

1,800 2 day

12.4Bond Strength Hardened to (MPa)

Hardened Concrete psi 3,300 14 day

C882 22.8(MPa)

Bond Strength Fresh to psi

Hardened -----

Concrete 14 day (MPa)

Heat Deflection OF 121 7 day D648

Temperature ( °C) 49.4

Water Absorption 14 day D570 % 0.49

Linear Coefficient of

Shrinkage 48 hr D2566 % 0.003

1. Results based on testing conducted on a representative lot(s) of product. Average results will vary according to the tolerances of the given property. 2. Full cure time is listed above to obtain the given properties for each product characteristic. 3. Results may vary due to environmental factors such as temperature, moisture and type of substrate. 4. Gel time may be lower than the minimum required for ASTM C881. 5. Property not referenced in ASTM C881. 6. Pot life is measured as the workable and applicable time of 1.0 gallon (3.8 L) when mixed.

1-888-292-2592 www.structuralrs.com Made in USA

457,243

81.2

YOU ASKED AND

WE LISTENED.

Designed and Tested for Crack Repair, Void Filling & Port Setting Applications.

Introducing SRS-2100 Rapid cure concrete repair paste.

Structuralrs.com

• Tested to ICC-ES AC308 and ACI 355.4

• Performs in dry damp or water-filled conditions.

• Withstands Freeze Thaw Cycles

• Installation temperature range 14 °F to 104 °F (-10 °C to 40 °C)

• Full cure in 45 minutes at 70 °F (21 °C)

MADE IN THE USA

1) Product Testing Results based on representative lot(s). Average results will vary according to the tolerances of the given property.

2.) Full cure is listed above to obtain the given properties for each product characteristic.

3.) Result may vary due to environmental factors such as temperature, moisture, and type of substrate.

4.) Gel time may be lower than the minimum required for ASTM C881 Type I and IV 5.) Optional testing for Grade 3 systems

FEATURES & ADVANTAGES

• High strength, all weather formula for installations between 14 °F to 104 °F (-10 °C to 40 °C )

• Service temperature range between 14 °F to 248 °F (-10 °C to 120 °C)

• Sets in 6 mins at 70 °F (21 °C)

TECHNICAL

DATA

APPROVALS AND CERTICATIONS

• Tested to ICC-ES, AC308 and ACI 355.4

A high performance structural paste designed for concrete and masonry repair. The rapid cure two-component formula is ideal for filling voids in cracked concrete, setting injection ports and anchoring rebar. SRS-2100 is tested to ICC-ES, AC308 and ACI 355.4 to deliver ultimate versatility in wet or dry environments under a wide temperature range.

CONCRETE

REPAIR

PASTE

CURE SCHEDULE

1-888-292-2592

MADE IN THE USA

Structuralrs.com

APPLICATIONS

-2100

• For use in cracked, or un-cracked concrete in horizontal, vertical or overhead applications.

• Anchoring injection ports and rebar, void filling, and crack pasting in concrete and masony.

• Threaded rod anchoring and rebar doweling in wet or water-filled conditions

STORAGE AND SHELF LIFE

• Store between 41 °F (5 °C) and 77 °F (25 °C)

• 18 month shelf life when stored in unopened containers in dry conditions

COLOR AND RATIO

• Part A (Resin) light beige:

Part B (Hardener) Black, Mixed Ratio:

10:1 by volume. Mixed Color: Gray

APPLICATION TEMPERATURE

• 14 °F to 104 °F (-10 °C to 40 °C )

LIMITATIONS

Do not thin with solvents, as this will prevent cure

For anchoring applications, concrete should be a minimum of 21 days old prior to anchor installation per ACI 355.4

MATERIAL SPECIFICATION

Table #: SRS-2100 Cure Schedule 1,2,3,4 Table #: SRS-2001 performance to ASTM C881-151,2,3

1.) Working and full cure times are approximate, may be linearly interpolated between the listed temperatures 2.) For installations between 12 °F to 23°F (-10 0C to 24 0C) the cartridge temperature must be conditioned to between 70 °F to 75 °F(21 °C to 24 °C).

3.) Application Temperature: Substrate and ambient air temperature should be from 14 °F to 104 °F (-10 °C to 40 4.) Storage Temperature is 41 °F to 77 °F (5 °C to 25 °C).