2-REEVES COUNTY BID PACKET 26-002 Asphalt.pdf

Purchasing Department 1714 Schmidt Dr.

Pecos, TX 79772

NOTICE TO INTERESTED PARTIES

The Purchasing Department is receiving sealed bids at 1714 Schmidt Dr. Pecos, Texas 79772 before 11:00 A.M (CST) Friday, February 13, 2026 to be opened at the Purchasing Department Office at 11: 05 AM (CST) on the same day.

Mark Sealed Envelope:

“ITB NO. 26-002”

Asphalt

Proposals should be typed or printed in ink. Proposals shall be placed in a sealed envelope, with the cover page manually signed by a person having the authority to bind the firm in a contract and marked clearly on the outside as shown above. Facsimile transmittals and email submitted bids will not be accepted. Loss runs and history for insurance proposals are provided where available.

Do not contact the requesting department. Any questions or additional information required by interested vendors must be emailed to bidquestions@reevescounty.org before Tuesday, February 10, 2026. Bid number and title must be on the “Subject Line” of the email. Attempts to circumvent this requirement may result in rejection of the bid as non-compliant.

Any changes in the specifications will be posted on the Bonfire portal as an addendum. It shall be the bidder’s responsibility to check the portal prior to the opening date to verify whether any addendums have been posted.

Reeves County appreciates your time and effort in preparing a bid. All proposals must be received in the Purchasing Agent’s Office before opening date and time. Bids received after the deadline will not be considered for the contract, and shall be considered void and unacceptable.

Award of the proposals is tentatively scheduled for 10:00 a.m. (CST), in Commissioners’ Court, Monday, February 23, 2026, Third Floor Courtroom of the Reeves County Courthouse. You are invited to attend.

Reeves County has united with Bonfire Interactive, an online E-bidding and procurement software platform, for vendor registration, solicitation notification and electronic bid submission.

The vendor registration portal is now open allowing vendors to register for bid alerts.

Note that vendors who are not registered with Bonfire will not be notified of Reeves County solicitations and will not be able to access solicitations until registration is complete.

Lucero Sandoval Purchasing Agent mailto:bidquestions@reevescounty.org

26-002 2

INVITATION TO BID

No. 26-002

ASPHALT

SCHEDULE

Notices Published: January 29, 2026 & February 5, 2026 Questions Due: February 10, 2026 Proposals Due: February 13, 2026 before 11 AM CST Tentative Award Date: February 23, 2026 Issued by: Lucero Sandoval, Purchasing Agent

The County of Reeves does not discriminate on the basis of race, color national origin, sex, religion, age and disability in employment or the provision of services.

The County reserves the right to terminate this process at any time and no guarantee is expressed or implied that obligates the County to contract for the proposed project.

OFFERORS NOTE

1. Carefully read all instructions, requirements and specifications.

2. Fill out all forms properly and completely.

3. Submit bids/proposals with all appropriate required documents.

26-002 3

VENDOR ACKNOWELEDGEMENT

ITB 26-002

ASPHALT

Submissions will be accepted as hard copy or electronically via Bonfire Portal

The undersigned hereby certifies that he/she understands the specifications and any addendums, has read the document in its entirety and the prices submitted in this bid/proposal have been carefully reviewed and are submitted as correct and final. If Bid/Proposal is accepted, proposer further certifies and agrees to furnish any or all products/services upon which prices are extended at the price offered, and upon conditions in the specifications of the Invitation for Bid/Proposal.

The undersigned hereby certifies the foregoing proposal submitted by the company listed below hereinafter called "Bidder" is the duly authorized agent of said company and the person signing said proposal has been duly authorized to execute the same. Bidder affirms that they are duly authorized to execute this contract; this company, corporation, firm, partnership or individual has not prepared this bid in collusion with any other Bidder; and that the contents of this bid as to prices, terms or conditions of said bid have not been communicated by the undersigned nor by any employee or agent to any other person engaged in this type of business prior to the official opening of this bid.

Company Name

Address of Principal Place of Business

City, State, Zip

Remittance Address

City, State, Zip

Phone of Principal Place of Business

Active Sam Registration Y N

Acknowledgement of Addenda

(Please circle EACH acknowledged Addendum(s)) #1 #2 #3 #4 #5

Authorized Representative Name

Email Address of Representative

Authorized Representative Title

Authorized Signature

Date

***THIS MUST BE THE FIRST PAGE ON ALL BIDS***

26-002 4

PURPOSE OF BID/PROPOSAL

The purpose of this specification is to receive fixed prices and delivery response times for various types of Asphalt for Road & Bridge. Reeves County reserves the right to award the bid by line item to whichever bidder makes the lowest and best bid for that particular item. By entering a bid, vendors acknowledge they will accept any item of the bid awarded to them.

SCOPE OF WORK

It is the intention of these specifications that the successful contractors shall furnish and deliver aggregate to Reeves County Road & Bridge. The County reserves the right to order such materials as may be required during the said period, it also reserves the right not to order any materials bid upon by the contractor if it is found that the County does not require such materials during the period of time covered by this agreement.

LENGTH OF BID

Contract shall begin upon the effective date of the ordinance awarding the contract, January 1, or whichever is later, and terminate on March 28, 2026.

At the County’s option, this Contract may be renewed under the same terms and conditions for two (2) additional one (1) year periods. Renewals shall be in writing and signed by the Purchasing Department or her designee, without further action by the Reeves County Commissioners, subject to and contingent upon appropriation of funding therefore.

County shall also have the right to extend this contract under the same terms and conditions beyond the original term or any renewal thereof, on a month to month basis, not to exceed 3 months. Said month to month extensions shall be in writing, signed by the County’s Purchasing Agent or her designee, and shall not require County Commissioner approval, subject to and contingent upon appropriation of funding therefore.

PRICING

All prices are fixed for the duration of the contract. There shall be no increase in price should an extension be granted.

If during the life of this contract, the successful bidder’s net prices to other customers for items awarded herein are reduced below the contracted price, it is understood and agreed that the benefits of such reduction shall be extended to Reeves County. In the event bidder breaches this condition, the price of the item shall be reduced to the bidder’s current prices on orders by others, or in the alternative, Reeves County may cancel this contract without liability to bidder for breach or bidder’s actual expense.

LOWEST PRICE

In determining the lowest and best bid for a contract for the purchase of road construction material, the commissioners’ court may consider the pickup and delivery locations of the bidders and the cost to the county of delivering or hauling the material to be purchased. The commissioners’ court may award contracts for the purchase of road construction material to more than one bidder if each of the selected bidders submits the lowest and best bid for a particular location or type of material.

BONDS

Bonds will not be required for this bid as items shall be paid net 30 terms after delivery is complete.

Silence of Specification: The apparent silence of these specifications as to any detail or to the apparent omission of a detailed description concerning any point, shall be regarded as meaning only the best commercial practices are to prevail. All interpretations of these specifications shall be made based on this statement.

26-002 5

SPECIFICATIONS

All items shall follow TXDOT Requirements as noted after page 5. NO substitutes allowed.

An analysis shall be provided for each item vendor intends to bid on to verify stockpiles can meet requirements and shall be tested again upon award at the expense of the vendor OR prior to first pickup or delivery.

DELIVERY

All products shall be shipped F.O.B. Reeves County, Texas and delivered to the location designated by the Road and Bridge Administrator or personnel.

The bid shall be based on a transport load of 5,500 gallons. Freight shall be based on a full load even if a full load is not ordered.

The vendor shall provide all equipment necessary to transport, store, sample, heat, and incorporate asphalts, oils, and emulsions. The vendor shall provide pump and deliver the asphalt to the specified work site of the day, County wide, at the time requested, 7:00 am and no later than 9:00 am, where it shall be transferred to County owned equipment for the application process, 2-hour time allowance for transfer. The County shall provide storage facility for excess asphalt or emulsion.

RESPONSE TIME

Response time shall be interpreted as the time between when an order is placed with contractor and point of delivery to location specified.

Response times are to ensure no delays occur during projects and County can complete projects in a timely and efficient manner.

ESTIMATED QUANTITIES

The quantities of products shown on Bid Price Sheet are approximate amounts only and are to be used only for calculation of total bid. The quantities are determined from past purchasing history and, as far as can be determined, are realistic. Actual quantities ordered may be higher or lower than estimated quantities.

INVOICES

The Vendor shall submit an accurate invoice within five (5) working days from the date of delivery of the products. Invoices shall be sent to the requesting department via email.

ADDITIONAL FEES

The successful bidder will not be allowed to add minimum invoice fees or surcharge fees to invoice purchase totals. If fuel surcharges are to be charged, the calculation method of the surcharge and the fuel price that triggers the surcharge must be stated on the bid document.

If any charges for demurrage, diversion, pumping, return freight, restocking, etc. are to be added to bid price, they must be stated as a fee or percentage of the bid and attached to this bid sheet. Price shall be bid F.0.B. Destination, Reeves County, Texas, location as specified by the Road and Bridge Administrator on the day of delivery.

INFRIDGEMENTS CLAUSE

As part of this contract for sale, bidder agrees to ascertain whether goods manufactured in accordance with the specifications attached to this agreement, will give rise to the rightful claim of any third person by way of infringement or the like. Reeves County makes no warranty that the production of goods according to the specification will not give rise to such a claim, and in no event shall Reeves County be liable to the bidder for indemnification in the event that bidder issued on the grounds of infringement or the like.

2024 Specifications 300

Item 300 Asphalts, Oils, and Emulsions

1. DESCRIPTION

Provide asphalt cements, cutback and emulsified asphalts, performance-graded asphalt binders, and other miscellaneous asphalt materials as shown on the plans.

2. MATERIALS

Provide asphalt materials that meet the stated requirements when tested in conformance with the referenced Department, AASHTO, and ASTM test methods. Use asphalt containing recycled materials only if the recycled components meet the requirements of Article 6.9., “Recycled Materials.” Provide asphalt materials that the Department has preapproved for use in accordance with Tex-545-C.

Inform the Department of all additives or modifiers included in the asphalt binder as part of the facility quality plan, as required by Tex-545-C, and provide that information to Department personnel. The Department reserves the right to prohibit the use of any asphalt additive or modifier.

Limit the use of polyphosphoric acid to no more than 0.5% by weight of the asphalt binder.

The use of re-refined engine oil bottoms is prohibited.

Acronyms used in this Item are defined in Table 1.

Table 1 Acronyms

Acronym Definition Test Procedure Designations

Tex Department T or R AASHTO

D ASTM

Polymer Modifier Designations P polymer-modified SBS styrene-butadiene-styrene block co-polymer TR tire rubber modifier (obtained from ground truck and passenger vehicle post-consumer tires) AC asphalt cement AE asphalt emulsion AE-P asphalt emulsion prime A-R asphalt-rubber ARA emulsified asphalt recycling agent C cationic CRM crumb rubber modifier CSS cationic slow setting EAP&T emulsified asphalt prime and tack EBL emulsified bonding layer FDR full-depth reclamation H-suffix harder residue (lower penetration) HA hot-applied HF high float HRSS hard residue surface sealant HY high yield https://ftp.txdot.gov/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph545.pdf https://ftp.txdot.gov/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph545.pdf

Acronym Definition MC medium-curing MS medium-setting MSCR multiple stress creep recovery NT non-tracking PCE prime, cure, and erosion control PG performance grade RC rapid-curing RS rapid-setting S-suffix stockpile usage SCM special-use cutback material SS slow-setting SY standard yield TRAIL tracking resistant asphalt interlayer

2.1. Asphalt Cement. Provide AC that is homogeneous, water-free, and non-foaming when heated to 347°F, and in accordance with Table 2.

Table 2

Asphalt Cement

Property Test Procedure

Viscosity Grade

AC-0.6 AC-1.5

Min Max Min Max Viscosity T 202

140°F, poise 40 80 100 200 275°F, poise 0.4 – 0.7 –

Penetration, 77°F, 100g, 5 sec. T 49 350 – 250 – Flash point, C.O.C., °F T 48 425 – 425 – Solubility, % T 44 99.0 – 99.0 – Spot test Tex-509-C Neg. Neg.

Tests on residue from RTFOT: T 240

Viscosity, 140°F, poise T 202 – 400 – 1,000 Ductility,1 77°F T 51 100 – 100 –

5 cm/min., cm

1. If AC-0.6 or AC-1.5 ductility at 77°F is less than 100 cm, material is acceptable if ductility at 60°F is more than 100 cm.

2.2. Polymer-Modified Asphalt Cement. Provide polymer-modified AC that is smooth, homogeneous, and meets the requirements shown in Table 3. Supply samples of the base AC and polymer additives if requested.

http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph501.pdf

Table 3 Polymer-Modified Asphalt Cement

Property Test Procedure

Polymer-Modified Viscosity Grade

AC-12-5TR NT-HA1 AC-15P AC-20XP AC-10-2TR AC-20-5TR

Min Max Min Max Min Max Min Max Min Max Min Max

Polymer TR – SBS SBS TR TR Polymer content, % (solids basis) Tex-533-C or Tex-553-C

5.0 – – – 3.0 – – – 2.0 – 5.0 –

Dynamic shear, G*/sin δ, 82°C, 10 rad/s, kPa

T 315 – – 1.0 – – – – – – – – –

Dynamic shear, G*/sin δ, 64°C, 10 rad/s, kPa

T 315 – – – – – – 1.0

– – – 1.0 –

Dynamic shear, G*/sin δ, 58°C, 10 rad/s, kPa

T 315 1.0 – – – – – – – 1.0 – – –

Viscosity 140°F, poise T 202 1,200 – – – 1,500 – 2,000 – 1,000 – 2,000 – 275°F, poise

275°F, Pa-s T 202 T 316

4.0

8.0

8.0

10.0

Penetration, 77°F, 100 g, 5 sec. T 49 110 150 – 25 100 150 75 115 95 130 75 115 Elastic recovery, 50°F, % Tex-539-C 55 – – – 55 – 55 – 30 – 55 – Polymer separation Tex-540-C None – None None None None Flash point, C.O.C., °F T 48 425 – 425 – 425 – 425 – 425 – 425 – Tests on residue from RTFOT aging and pressure aging:

T 240 and R 28

Creep stiffness T 313 S, -18°C, MPa – 300 – – – 300 – 300 – 300 – 300 m-value, -18°C 0.300 – – – 0.300 – 0.300 – 0.300 – 0.300 –

1. This is a hot-applied TRAIL product.

2.3. Cutback Asphalt. Provide cutback asphalt that meets the requirements shown in Tables 4, 5, and 6 for the specified type and grade. Supply samples of the base AC and polymer additives if requested.

Table 4

Rapid-Curing Cutback Asphalt

Property Test Procedure

Type–Grade

RC-250

Min Max Kinematic viscosity, 140°F, cSt T 201 250 400 Water, % D95 – 0.2 Flash point, T.O.C., °F T 79 80 – Distillation test: T 78

Distillate, percentage by volume of total distillate to 680°F to 437°F 40 75 to 500°F 65 90 to 600°F 85 –

Residue from distillation, volume % 70 – Tests on distillation residue:

Viscosity, 140°F, poise T 202 600 2,400 Ductility, 5 cm/min., 77°F, cm T 51 100 – Solubility, % T 44 99.0 – Spot test Tex-509-C Neg.

http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph533.pdf https://ftp.txdot.gov/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph553.pdf http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph539.pdf http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph540.pdf

Table 5 Medium-Curing Cutback Asphalt

Property Test Procedure

Type–Grade

MC-30 MC-800 MC-3000

Min Max Min Max Min Max Kinematic viscosity, 140°F, cSt T 201 30 60 800 1,600 3,000 6,000 Water, % D95 – 0.2 – 0.2 – 0.2 Flash point, T.O.C., °F T 79 95 – 140 – 149 – Distillation test: T 78

Distillate, percentage by volume of total distillate to 680°F to 437°F – 35 – – – – to 500°F 30 75 – 40 – 15 to 600°F 75 95 45 85 15 75

Residue from distillation, volume % 50 – 75 – 80 – Tests on distillation residue:

Viscosity, 140°F, poise T 202 300 1,200 300 1,200 300 1,200 Ductility, 5 cm/min., 77°F, cm T 51 100 – 100 – 100 – Solubility, % T 44 99.0 – 99.0 – 99.0 – Spot test Tex-509-C Neg. Neg. Neg.

Table 6 Special-Use Cutback Asphalt

Property Test Procedure

Type–Grade

SCM I

Min Max Kinematic viscosity, 140°F, cSt T 201 500 1,000 Water, % D95 – 0.2 Flash point, T.O.C., °F T 79 175 – Distillation test: T 78

Distillate, percentage by volume of total distillate to 680°F to 437°F – – to 500°F – 0.5 to 600°F 20 60

Residue from distillation, volume % 76 – Tests on distillation residue:

Penetration, 100 g, 5 sec., 77°F T 49 180 – Solubility, % T 44 99.0 –

2.4. Emulsified Asphalt. Provide emulsified asphalt that is homogeneous, does not separate after thorough mixing, and meets the requirements for the specified type and grade shown in Tables 7, 8, 9, 10, and 10A–C.

Table 7

Emulsified Asphalt

Property Test Procedure

Type–Grade Rapid- Setting

Medium- Setting Slow-Setting

HFRS-2 MS-2 SS-1 SS-1H

Min Max Min Max Min Max Min Max

Viscosity, Saybolt Furol T 72 77°F, sec. – – – – 20 100 20 100 122°F, sec. 150 400 100 300 – – – –

Sieve test, % T 59 – 0.1 – 0.1 – 0.1 – 0.1 Miscibility T 59 – – Pass Pass Cement mixing, % T 59 – – – – – 2.0 – 2.0 Demulsibility, 35 mL of 0.02 N CaCl2, % T 59 50 – – 30 – – – –

Storage stability, 1 day, % T 59 – 1 – 1 – 1 – 1 Freezing test, 3 cycles1 T 59 – Pass Pass Pass Distillation test: T 59

Residue by distillation, % by wt. 65 – 65 – 60 – 60 – Oil distillate, % by volume of emulsion – 0.5 – 0.5 – 0.5 – 0.5

Tests on residue from distillation:

Penetration, 77°F, 100 g, 5 sec. T 49 100 140 90 160 90 160 40 100 Solubility, % T 44 97.5 – 97.5 – 97.5 – 97.5 – Ductility, 77°F, 5 cm/min., cm T 51 100 – 100 – 100 – 80 – Float test, 140°F, sec. T 50 1,200 – – – – – – –

1. Applies only when the Engineer designates material for winter use.

Table 8 Cationic Emulsified Asphalt

Property Test Procedure

Type–Grade Rapid- Setting

Medium- Setting Slow-Setting

CRS-2 CMS-2 CSS-1 CSS-1H

Min Max Min Max Min Max Min Max

Viscosity, Saybolt Furol T 72

77°F, sec. – – – – 20 100 20 100 122°F, sec. 150 400 100 350 – – – – Sieve test, % T 59 – 0.1 – 0.1 – 0.1 – 0.1 Cement mixing, % T 59 – – – – – 0.2 – 0.2 Coating ability and water resistance:

T 59

Dry aggregate/after spray – Good/Fair – – Wet aggregate/after spray – Fair/Fair – – Demulsibility, 35 mL of 0.8% Sodium dioctyl sulfosuccinate, % T 59 70 – – – – – – –

Storage stability, 1 day, % T 59 – 1 – 1 – 1 – 1 Particle charge T 59 Positive Positive Positive Positive Distillation test:

T 59

Residue by distillation, % by wt. 65 – 65 – 60 – 60 – Oil distillate, % by volume of emulsion

– 0.5 – 7 – 0.5 – 0.5

Tests on residue from distillation:

Penetration, 77°F, 100 g, 5 sec. T 49 90 160 90 200 90 160 40 110 Solubility, % T 44 97.5 – 97.5 – 97.5 – 97.5 – Ductility, 77°F, 5 cm/min., cm T 51 100 – 100 – 100 – 80 –

Table 9 Polymer-Modified Emulsified Asphalt

Property Test Procedure

Type–Grade Rapid-Setting

HFRS-2P

Min Max

Viscosity, Saybolt Furol T 72 122°F, sec. 150 400

Sieve test, % T 59 – 0.1 Demulsibility, 35 mL of 0.02 N CaCl2, % T 59 50 – Storage stability, 1 day, % T 59 – 1 Distillation test:1 T 59

Residue by distillation, % by wt. 65 – Oil distillate, % by volume of emulsion – 0.5

Tests on residue from distillation:

Polymer content, wt. % (solids basis) Tex-533-C 3.0 – Penetration, 77°F, 100 g, 5 sec. T 49 90 140 Solubility, % T 44 97.0 – Viscosity, 140°F, poise T 202 1,500 – Float test, 140°F, sec. T 50 1,200 – Ductility,2 39.2°F, 5 cm/min., cm T 51 50 – Elastic recovery,2 50°F, % Tex-539-C 55 –

1. Exception to T 59: Bring the temperature on the lower thermometer slowly to 350 ± 10°F. Maintain at this temperature for 20 min. Complete total distillation in 60 ± 5 min. from the first application of heat.

2. HFRS-2P must meet one of either the ductility or elastic recovery requirements.

http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph533.pdf http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph539.pdf

Table 10 Polymer-Modified Cationic Emulsified Asphalt

Property Test Procedure

Type-Grade Rapid-Setting Medium-Setting Slow-Setting

CRS-2P CHFRS-2P CRS-2TR CMS-1P3 CMS-2P3 CSS-1P

Min Max Min Max Min Max Min Max Min Max Min Max

Viscosity, Saybolt Furol T 72 77°F, sec. – – – – -- -- 10 100 – – 20 100 122°F, sec. 150 400 100 400 150 500 – – 50 400 – –

Sieve test, % T 59 – 0.1 – 0.1 -- 0.1 – 0.1 – 0.1 – 0.1 Demulsibility, 35 ml of 0.8% sodium dioctyl sulfosuccinate, % T 59 70 – 60 – 40 -- – – – – – –

Storage stability, 1 day, % T 59 – 1 – 1 -- 1 – 1 – 1 – 1 Particle charge T 59 Positive Positive Positive Positive Positive Positive Distillation test1: T 59

Residue by distillation, % by weight 65 – 65 – 65 -- 30 – 60 – 62 – Oil distillate, % by volume of emulsion

– 0.5 – 0.5 -- 3 – 0.5 – 0.5 – 0.5

Tests on residue from distillation:

Polymer content, wt. % (solids basis) Tex-533-C or Tex-553-C 3.0 – 3.0 – 5.04 -- – – – – 3.0 –

Penetration, 77°F, 100 g, 5 sec. T 49 90 150 80 130 90 150 30 – 30 – 55 90 Viscosity, 140°F, poise T 202 1,300 – 1,300 – 1,000 -- – – – – – – Solubility, % T 44 97.0 – 95.0 – 98 -- – – – – 97.0 – Ductility, 77°F, 5 cm/min., cm T 51 – – – – 40 -- – – – – 70 – Float test, 140°F, sec. T 50 – – 1,800 – -- -- – – – – Ductility,2 39.2°F, 5 cm/min., cm T 51 50 – – – -- -- – – – – – – Elastic recovery,2 50°F, % Tex-539-C 55 – 55 – -- -- – – – – – –

Tests on residue from evaporative recovery:

R 78, Procedure B

Nonrecoverable creep compliance of residue, 3.2 kPa, 52°C, kPa-1 T 350

– – – – – – – 2.0 – 4.0 – –

1. Exception to T 59: Bring the temperature on the lower thermometer slowly to 350 ± 10°F. Maintain at this temperature for 20 min.

Complete total distillation in 60 ± 5 min. from the first application of heat.

2. CRS-2P must meet one of either the ductility or elastic recovery requirements.

3. With all precertification samples of CMS-1P or CMS-2P, submit certified test reports showing the type and percent of rejuvenator and/or latex added. Submit samples of these raw materials if requested by the Engineer.

4. Modifier type is TR. Determined in accordance with Tex-553-C.

Table 10A Non-Tracking Tack Coat Emulsion1

Property Test Procedure

NT-HRE NT-RRE NT-SRE

Min Max Min Max Min Max

Viscosity, Saybolt Furol, 77°F, sec. T 72 15 – 15 – 10 100 Storage stability, 1 Day, % T 59 – 1 – 1 – 1 Settlement, 5-day, % T 59 – 5 – 5 – 5 Sieve test, % T 59 – 0.30 – 0.30 – 0.1 Distillation test:2 T 59

Residue by distillation, % by wt. 50 – 58 – 50 – Oil distillate, by volume of emulsion – 1.0 – 1.0 – 1.0

Test on residue from distillation:

Penetration, 77°F, 100 g, 5 sec.

Solubility, % Dynamic shear, G*/sin(δ), 82°C, 10 rad/s, kPa

97.5

T 49 T 44 T 315

97.5 1.0

97.5

1. These are emulsion-based TRAILs. Due to the hardness of the residue, these emulsions should be heated to 120–140° F prior to thorough mixing as the emulsion is being prepared for testing.

2. Exception to T 59: Bring the temperature on the lower thermometer slowly to 350 ± 10°F. Maintain at this temperature for 20 min. Complete total distillation in 60 ± 5 min. from first application of heat.

https://ftp.txdot.gov/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph533.pdf https://ftp.txdot.gov/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph553.pdf https://ftp.txdot.gov/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph539.pdf https://ftp.txdot.gov/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph553.pdf

Table 10B Spray-Applied Underseal Membrane Polymer-Modified Emulsions

Property Test Procedure

EBL

Min Max

Viscosity @ 77°F, SSF T 72 20 100 Storage Stability1, % T 59 – 1 Demulsibility2

Anionic emulsions — 35 mL of 0.02 N CaCl2, % Cationic emulsions — 35 mL 0.8% sodium dioctyl sulfosuccinate, %

T 59 55 –

Sieve Test3, % T 59 – 0.05 Distillation Test4

Residue by distillation, % by wt.

Oil portion of distillate, % by vol.

T 59

0.5

Test on Residue from Distillation Elastic Recovery @ 50°F, 50 mm/min., % Tex-539-C 60 – Penetration @ 77°F, 100 g, 5 sec, 0.1 mm T 49 80 130

1. After standing undisturbed for 24 hr., the surface must be smooth, must not exhibit a white or milky colored substance, and must be a homogeneous color throughout.

2. Material must meet demulsibility test for emulsions.

3. May be required by the Engineer only when the emulsion cannot be easily applied in the field.

4. The temperature on the lower thermometer should be brought slowly to 350 ± 10°F and maintained at this temperature for 20 min. The total distillation should be completed in 60 ± 5 min.

from the first application of heat.

Table 10C Full-Depth Reclamation Emulsion

Property Test Procedure

Standard Yield

(FDR EM-SY)

High Yield

(FDR EM-HY)2

Min Max Min Max Viscosity Saybolt Furol @ 77°F, sec.

Sieve test, % Cement mixing, % % Storage stability, 1 day, % Distillation test1:

Residue by distillation, % by wt.

Oil portion of distillate, % by vol.

T 72 T 59 T 59 T 59 T 59

0.1 2.0

0.5

0.1 2.0

0.5

Test on residue from distillation:

Penetration @ 77°F, dmm T 49 40 95 120 –

1. The temperature on the lower thermometer should be brought slowly to 350 ± 10°F and maintained at this temperature for 20 min. The total distillation should be completed in 60 ± 5 min. from the first application of heat.

2. Provide a manufacturer’s certificate of analysis (COA) with the type and percent of rejuvenator added.

2.5. Specialty Emulsions. Provide specialty emulsion that is either asphalt-based or resin-based and meets the requirements shown in Table 11 or Table 11A.

Table 11 Specialty Emulsions

Property Test Procedure

Type–Grade Medium-Setting Slow-Setting

AE–P EAP&T PCE1

Min Max Min Max Min Max

Viscosity, Saybolt Furol T 72 77°F, sec. – – – – 10 100 122°F, sec. 15 150 – – – –

Sieve test, % T 59 – 0.1 – 0.1 – 0.1 Miscibility2 T 59 – Pass Pass Demulsibility, 35 mL of 0.10 N CaCl2, % T 59 – 70 – – – – Storage stability, 1 day, % T 59 – 1 – 1 – – Particle size,5 % by volume < 2.5 µm Tex-238-F3 – – 90 – 90 – Asphalt emulsion distillation to 500°F followed by Cutback asphalt distillation of residue to 680°F:

T 59 and T 78

Residue after both distillations, % by wt. 40 – – – – – Total oil distillate from both distillations, % by volume of emulsion 25 40 – – – –

Residue by distillation, % by wt. T 59 – – 60 – – – Residue by evaporation,4 % by wt. T 59 – – – – 60 – Tests on residue after all distillation(s):

Viscosity, 140°F, poise T 202 – – 800 – – – Kinematic viscosity,5 140°F, cSt T 201 – – – – 100 350 Flash point C.O.C., °F T 48 – – – – 400 – Solubility, % T 44 97.5 – – – – – Float test, 122°F, sec. T 50 50 200 – – – –

1. Supply with each shipment of PCE:

a copy of a lab report from an approved analytical lab, signed by a lab official, indicating the PCE formulation does not meet any characteristics of a Resource Conservation Recovery Act (RCRA) hazardous waste;

a certification from the producer that the formulation supplied does not differ from the one tested and that no listed RCRA hazardous wastes or Polychlorinated Biphenyls have been mixed with the product; and a Safety Data Sheet.

2. Exception to T 59: In dilution, use 350 mL of distilled or deionized water and a 1,000-mL beaker.

3. Use Tex-238-F, beginning at “Particle Size Analysis by Laser Diffraction,” with distilled or deionized water as a medium and no dispersant, or use another approved method.

4. Exception to T 59: Leave sample in the oven until foaming ceases, then cool and weigh.

5. PCE must meet either the kinematic viscosity requirement or the particle size requirement.

http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/200-F_series/pdfs/bit238.pdf http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/200-F_series/pdfs/bit238.pdf

Table 11A Hard Residue Surface Sealant

Property Test Procedure HRSS Min Max

Viscosity, Krebs unit, 77°F, Krebs units D 562 45 75 Softening point, °F Tex-505-C1 250 – Uniformity D 2939 Pass2

Resistance to heat D 2939 Pass3 Resistance to water D 2939 Pass4

Wet flow, mm D 2939 – 0 Resistance to Kerosene (optional)5 D 2939 Pass6 Ultraviolet exposure, UVA-340, 0.77 W/m2, 50°C chamber, 8 hr. UV lamp, 5 min. spray, 3 hr. 55 min. condensation, 1,000 hr. total exposure7

G 154 Pass8

Abrasion loss, 1.6 mm thickness, liquid only, % ISSA TB-100 – 1.0 Residue by evaporation, % by weight D 2939 33 –

Tests on residue from evaporation:

Penetration, 77°F, 100 g, 5 sec. T 49 15 30 Flash point, Cleveland open cup, °F T 48 500 –

Tests on base asphalt before emulsification Solubility, % T 44 98 –

1. Cure the emulsion in the softening point ring in a 200 ± 5°F oven for 2 hr.

2. Product must be homogenous and show no separation or coagulation that cannot be overcome by moderate stirring.

3. No sagging or slippage of film beyond the initial reference line.

4. No blistering or re-emulsification.

5. Recommended for airport applications or where fuel resistance is desired.

6. No absorption of Kerosene into the clay tile past the sealer film. Note sealer surface condition and loss of adhesion.

7. Other exposure cycles with similar levels of irradiation and conditions may be used with Department approval.

8. No cracking, chipping, surface distortion, or loss of adhesion. No color fading or lightening.

2.6. Diluted Emulsions. Provide emulsified asphalt that is homogeneous, does not separate after thorough mixing, and meets the requirements for the specified type and grade shown in Tables 12 and 12A, where the suffixes 50/50, 40/60, and 30/70 mean 50% emulsion diluted with 50% water; 40% emulsion diluted with 60% water, and 30% emulsion diluted with 70% water, respectively. For example, CSS-1H 40/60 means 40% CSS-1H diluted with 60% water and AE-P 30/70 means 30% AE-P diluted with 70% water.

Table 12 Cationic Diluted Emulsified Asphalt

Property Test Procedure

Type-Grade Diluted Slow-Setting

CSS-1H 50/50 CSS-1H 40/60 CSS-1H 30/70

Min Max Min Max Min Max

Viscosity, Saybolt Furol 77°F, sec. T 72 Report only Report only Report only

Distillation test T 59 Residue by distillation, % by wt. 30 – 24 – 18 –

Oil distillate, % by volume of emulsion – 0.5 – 0.5 – 0.5 Tests on residue from distillation:

Penetration, 77°F, 100 g, 5 sec. T 49 40 110 40 110 40 110 Solubility, % T 44 97.5 – 97.5 – 97.5 – Ductility, 77°F, 5 cm/min., cm T 51 80 – 80 – 80 –

Table 12A Diluted Specialty Emulsions

Property Test Procedure

Type-Grade Diluted Slow-Setting

AE-P 50/50 AE-P 40/60 AE-P 30/70

Min Max Min Max Min Max

Viscosity, Saybolt Furol T 72 122°F, sec. Report only Report only Report only

Asphalt emulsion distillation to 500°F followed by cutback asphalt distillation of residue to 680°F: T 59 and

T 78 Residue after both distillations, % by wt. 20 – 16 – 12 – Total oil distillate from both distillations, % by volume of emulsion

12.5 20 10.0 16 7.5 12

Tests on residue after all distillations:

Solubility, % T 44 97.5 – 97.5 – 97.5 – Float test, 122°F, sec. T 50 50 200 50 200 50 200

2.7. Recycling Agent. Recycling agent and emulsified asphalt recycling agent (ARA) must meet the requirements shown in Table 13. Additionally, recycling agent and residue from ARA, when added in the specified proportions to the recycled asphalt, must meet the properties shown on the plans.

Table 13 Recycling Agent and Emulsified Asphalt Recycling Agent

Property Test Procedure

Recycling Agent ARA-1 ARA-1P Min Max Min Max Min Max

Viscosity, Saybolt Furol, 77°F, sec. T 72 – – 15 100 15 110 Sieve test, % T 59 – – – 0.1 – 0.1 Miscibility1 T 59 – No coagulation – Residue by evaporation2, % by wt. T 59 – – 60 – – – Distillation test3:

Residue by distillation, % by wt.

Oil distillate, % by volume of emulsion

T 59

Penetration of distillation residue at 39.2°F, 100 g, 5 sec.

T 49 – – – – 110 190

Tests on recycling agent or residue from evaporation:

Flash point, C.O.C., °F T 48 400 – 400 – 400 – Kinematic viscosity T 201

140°F, cSt 75 200 75 200 – – 275°F, cSt – 10.0 – 10.0 – –

1. Exception to T 59: Use 0.02 N CaCl2 solution in place of water.

2. Exception to T 59: Maintain sample at 300°F until foaming ceases, then cool and weigh.

3. Exception to T 59: Bring the temperature on the lower thermometer slowly to 350 ± 10°F. Maintain at this temperature for 20 min. Complete total distillation in 60 ± 5 min. from first application of heat.

2.8. Crumb Rubber Modifier. CRM consists of automobile and truck tires processed by ambient temperature grinding.

CRM must be:

free of contaminants, including fabric, metal, and mineral and other non-rubber substances;

free-flowing; and non-foaming when added to hot asphalt binder.

Ensure rubber gradation meets the requirements of the grades shown in Table 14 when tested in accordance with Tex-200-F, Part I, using a 50-g sample.

http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/200-F_series/pdfs/bit200.pdf

Table 14 CRM Gradations

Sieve Size (% Passing)

Grade A Grade B Grade C Grade D Grade E Min Max Min Max Min Max

As shown on the plans

As approved

#8 100 – – – – – #10 95 100 100 – – – #16 – – 70 100 100 – #30 – – 25 60 90 100 #40 – – – – 45 100 #50 0 10 – – – – #200 – – 0 5 – –

2.9. Crack Sealer. Provide polymer-modified emulsified asphalt crack sealer meeting the requirements shown in Table 15. Provide rubber-asphalt crack sealer meeting the requirements shown in Table 16.

Table 15

Polymer-Modified Emulsified Asphalt Crack Sealer Property Test Procedure Min Max

Rotational viscosity, 77°F, cP D2196, Method A 10,000 25,000 Sieve test, % T 59 – 0.1 Storage stability, 1 day, % T 59 – 1 Evaporation Tex-543-C Residue by evaporation, % by wt. 65 – Tests on residue from evaporation:

Penetration, 77°F, 100 g, 5 sec. T 49 35 75 Softening point, °F T 53 140 – Ductility, 39.2°F, 5 cm/min., cm T 51 100 –

Table 16

Asphalt-Rubber Crack Sealer

Property Test Procedure Class A Class B Min Max Min Max

CRM content, Grade A or Grade B, % by wt. Tex-544-C 22 26 – – CRM content, Grade B, % by wt. Tex-544-C – – 13 17 Virgin rubber content1, % by wt. – – 2 – Flash point2, C.O.C., °F T 48 400 – 400 – Penetration3, 77°F, 150 g, 5 sec. T 49 30 50 30 50 Penetration3, 32°F, 200 g, 60 sec. T 49 12 – 12 – Softening point, °F T 53 – – 170 – Bond test, non-immersed, 0.5 in specimen, 50% extension, 3 cycles, 20°F4 D5329 – Pass

1. Provide certification that the Min % virgin rubber was added.

2. Agitate the sealing compound using a 3/8–1/2-in. (9.5–12.7-mm) wide, square-end metal spatula to bring the material on the bottom of the cup to the surface (i.e., turn the material over) before passing the test flame over the cup. Start at one side of the thermometer, move around to the other, and then return to the starting point using 8–10 rapid circular strokes. Accomplish agitation in 3–4 sec. Pass the test flame over the cup immediately after stirring is completed.

3. Exception to T 49: Substitute the cone specified in D217 for the penetration needle.

4. Allow no crack in the crack-sealing materials or break in the bond between the sealer and the mortar blocks more than 1/4 in. deep for any specimen after completion of the test.

2.10. Asphalt-Rubber Binders. Provide A-R binders that are mixtures of asphalt binder and CRM that have been reacted at elevated temperatures. Provide A-R binders meeting D6114 and containing at least 15% CRM by weight. Provide Type I or Type II, containing CRM Grade C, for use in hot-mix aggregate mixtures. Provide Type II or Type III, containing CRM Grade B, for use in surface treatment binder.

Ensure binder properties meet the requirements shown in Table 17.

http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph543.pdf http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph544.pdf http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph544.pdf

Table 17 A-R Binders

Property Test Procedure

Binder Type Type I Type II Type III

Min Max Min Max Min Max

Apparent viscosity, 347°F, cP D2196, Method A 1,500 5,000 1,500 5,000 1,500 5,000

Penetration, 77°F, 100 g, 5 sec. T 49 25 75 25 75 50 100 Penetration, 39.2°F, 200 g, 60 sec. T 49 10 – 15 – 25 – Softening point, °F T 53 135 – 130 – 125 – Resilience, 77°F, % D5329 25 – 20 – 10 – Flash point, C.O.C., °F T 48 450 – 450 – 450 – Tests on residue from RTFOT: T 240

Retained penetration ratio, 39.2°F, 200 g, 60 sec., % of original T 49 75 – 75 – 75 –

2.11. Performance-Graded Binders. Provide PG binders that are smooth and homogeneous, show no separation when tested in accordance with Tex-540-C, and meet the requirements shown in Table 18.

Separation testing is not required if:

a modifier is introduced separately at the mix plant by injection in either the asphalt line or mixer, the binder is blended onsite in continuously agitated tanks, or binder acceptance is based on field samples taken from an in-line sampling port at the hot-mix plant after the addition of modifiers.

http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/500-C_series/pdfs/aph540.pdf

Table 18 Performance-Graded Binders

Property and Test Method Performance Grade

PG 58 PG 64 PG 70 PG 76 PG 82

-22 -28 -34 -16 -22 -28 -34 -16 -22 -28 -34 -16 -22 -28 -34 -16 -22 -28

Average 7-day Max pavement design temperature, °C1 58 64 70 76 82

Min pavement design temperature, °C1 -22 -28 -34 -16 -22 -28 -34 -16 -22 -28 -34 -16 -22 -28 -34 -16 -22 -28 Original Binder

Flash point, T 48, Min, °C 230 Viscosity, T 3162, 3: 135 Max, 3.0 Pa⋅s, test temperature, °C Dynamic shear, T 3154:

58 64 70 76 82 G*/sin(δ), Min, 1.00 kPa, Max,

2.00 kPa5, Test temperature @ 10 rad/sec., °C

Elastic recovery, D6084, 50°F, % Min6 – – 30 – – 30 50 – 30 50 60 30 50 60 70 50 60 70 Rolling Thin Film Oven (RTFO) (T 240)

Mass change, T 240, Max, % 1.0 Dynamic shear, T 315

58 64 70 76 82 G*/sin(δ), Min, 2.20 kPa, Max,

5.00 kPa5, Test temperature @ 10 rad/sec., °C

MSCR, T 350, recovery, 0.1 kPa, high PG temperature, % Min6 – – 20 – – 20 30 – 20 30 40 20 30 40 50 30 40 50

Pressure Aging Vessel (PAV) Residue (R 28) PAV aging temperature, °C 100 Dynamic shear, T 315

25 22 19 28 25 22 19 28 25 22 19 28 25 22 19 28 25 22 G*.sin (δ), Max, 5,000 kPa (Max, 6,000 kPa for δ ≥42°) Test temperature @ 10 rad/sec., °C

Creep stiffness, T 3137, 8

-12 -18 -24 -6 -12 -18 -24 -6 -12 -18 -24 -6 -12 -18 -24 -6 -12 -18S, Max, 300 MPa, m-value, Min, 0.300 Test temperature @ 60 sec., °C

Direct tension, T 3148 -12 -18 -24 -6 -12 -18 -24 -6 -12 -18 -24 -6 -12 -18 -24 -6 -12 -18Failure strain, Min, 1.0%

Test temperature @ 1.0 mm/min., °C

1. Pavement temperatures are estimated from air temperatures using an algorithm contained in a Department-supplied computer program, may be provided by the Department, or may be obtained by following procedures outlined in AASHTO M 323 and R 25.

2. This requirement may be waived at the Department’s discretion if the supplier warrants that the asphalt binder can be adequately pumped, mixed, and compacted at temperatures that meet all applicable safety, environmental, and constructability requirements. At test temperatures where the binder is a Newtonian fluid, any suitable standard means of viscosity measurement may be used, including capillary (T 201 or T 202) or rotational viscometry (T 316).

3. Viscosity at 135°C is an indicator of mixing and compaction temperatures that can be expected in the lab and field. High values may indicate high mixing and compaction temperatures. Additionally, significant variation can occur from batch to batch. Contractors should be aware that variation could significantly impact their mixing and compaction operations. Contractors are therefore responsible for addressing any constructability issues that may arise.

4. For quality control of unmodified asphalt binder production, measurement of the viscosity of the original asphalt binder may be substituted for dynamic shear measurements of G*/sin (δ) at test temperatures where the asphalt is a Newtonian fluid. Any suitable standard means of viscosity measurement may be used, including capillary (T 201 or T 202) or rotational (T 316) viscometry.

5. Max values for unaged and RTFO-aged dynamic shear apply only to materials used as substitute binders, as described in Item 341, “Dense-Graded Hot-Mix Asphalt,” and Item 344, “Superpave Mixtures.”

6. Elastic recovery (D6084) is not required unless MSCR (T 350) is less than the Min % recovery. Elastic recovery will be used for the acceptance criteria in this instance.

7. Silicone beam molds, as described in AASHTO TP 1-93, are acceptable for use.

8. If creep stiffness is below 300 MPa, direct tension test is not required. If creep stiffness is between 300 and 600 MPa, the direct tension failure strain requirement can be used instead of the creep stiffness requirement. The m-value requirement must be satisfied in both cases.

3. EQUIPMENT

Provide all equipment necessary to transport, store, sample, heat, apply, and incorporate asphalts, oils, and emulsions.

4. CONSTRUCTION

4.1. Typical Material Use. Use materials shown in Table 19, unless otherwise determined by the Engineer.

Table 19 Typical Material Use

Material Application Typically Used Materials Hot-mixed, hot-laid asphalt mixtures PG binders, A-R binder Types I and II

Surface treatment

PG 58-22, AC-15P, AC-20XP, AC-10-2TR, AC-20-5TR, HFRS-2, MS-2,

CRS-2, CRS-2TR, CMS-2P, HFRS-2P, CRS-2P, CHFRS-2P, A-R binder Types II and III

Surface treatment (cool weather) AC12-5TR, RC-250, MC-800, MC-3000, CMS-2P Precoating PG 58-22, PG 64-22, SS-1, SS-1H, CSS-1, CSS-1H Tack coat PG binders, SS-1H, CSS-1H, EAP&T, TRAIL, EBL

Fog seal SS-1, SS-1H, CSS-1, CSS-1H, CSS-1H 50/50, CSS-1H 40/60, CSS-1H

30/70, CMS-1P

Hot-mixed, cold-laid asphalt mixtures AC-0.6, AC-1.5, PG 58-22, CMS-2 Patching mix MC-800, SCM I Recycling AC-0.6, AC-1.5, recycling agent, ARA-1, ARA-1P

Crack sealing Polymer-modified AE crack sealant, asphalt-rubber crack sealers (Class A, Class B)

Microsurfacing CSS-1P Prime MC-30, AE-P, AE-P 50/50, AE-P 40/60, AE-P 30/70, EAP&T, PCE Curing membrane SS-1, SS-1H, CSS-1, CSS-1H, PCE Erosion control SS-1, SS-1H, CSS-1, CSS-1H, PCE FDR-foaming PG 64-22, FDR EM-SY, FDR EM-HY

4.2. Storage and Application Temperatures. Use storage and application temperatures in accordance with Table 20. Store and apply materials at the lowest temperature yielding satisfactory results. Follow the manufacturer’s instructions for any agitation requirements in storage. Manufacturer’s instructions regarding recommended application and storage temperatures supersede those shown in Table 19.

Table 20 Storage and Application Temperatures

Type-Grade Application Storage

Max (°F)

Recommended Range (°F)

Max Allowable (°F)

AC-0.6, AC-1.5 200–300 350 350

AC-15P, AC-20-5TR, AC12-5TR, and AC10-2TR 300–375 375 360

RC-250 125–180 200 200

MC-30, AE-P 70–150 175 175

MC-800, SCM I 175–260 275 275

MC-3000 225–275 290 290

HFRS-2, MS-2, CRS-2, HFRS-2P, CRS-2P, CMS-2,

CRS-2TR 120–160 180 180

SS-1, SS-1H, CSS-1, CSS-1H, PCE, EAP&T, CSS-1P,

recycling agent, emulsified recycling agent, polymer-modified AE crack sealant

50–130 140 140

PG binders 275–350 350 350 Asphalt-rubber crack sealers (Class A, Class B) 350–375 400 – A-R binder Types I, II, and III 325–425 425 425

5. MEASUREMENT AND PAYMENT

The work performed, materials furnished, equipment, labor, tools, and incidentals will not be measured or paid for directly, but will be subsidiary to or are included in payment for other pertinent Items.

Item 316

Seal Coat

1. DESCRIPTION

Construct a surface treatment consisting of one or more applications of a single layer of asphalt material covered with a single layer of aggregate.

2. MATERIALS

Furnish materials of the type and grade shown on the plans in accordance with the following:

2.1. Asphalt. Furnish asphalt materials meeting the requirements of Item 300, “Asphalts, Oils, and Emulsions.”

Furnish Type II or Type III A-R binder in accordance with Section 300.2.9., “Asphalt-Rubber Binders,” as shown on the plans. Furnish a blend design for approval. Include in the design, at a minimum, the following:

manufacturer and grade of asphalt cement;

manufacturer and grade of crumb rubber;

manufacturer, type, and percentage of extender oil, if used;

test report on crumb rubber gradation in accordance with Tex-200-F, Part I;

design percentage of crumb rubber versus asphalt content;

blending temperature; and test results on the properties at reaction times of 60, 90, 240, 360, and 1,440 min. in accordance with

Section 300.2.9., “Asphalt-Rubber Binders.”

Furnish a new asphalt-rubber blend design if the grade or source for any of the components changes.

If a tack coat is specified when using asphalt-rubber, unless otherwise shown on the plans or approved, furnish CSS-1H, SS-1H, or a performance grade (PG) binder with a minimum high temperature grade of PG 58 for tack coat binder. Do not dilute emulsified asphalts at the terminal, in the field, or at any other location before use. If required, verify that emulsified asphalt proposed for use meets the minimum residual asphalt percentage specified in Item 300, “Asphalts, Oils, and Emulsions.”

2.2. Aggregate. Furnish aggregate meeting Item 302, “Aggregates for Surface Treatments,” of the type and grade shown on the plans. Unless otherwise shown on the plans, furnish aggregate with a minimum B Surface Aggregate Classification.

2.3. Materials Selections. Furnish asphalt and aggregate shown on the plans.

3. EQUIPMENT

3.1. Distributor. Furnish a distributor that will apply the asphalt material uniformly at the specified rate or as directed.

3.1.1. Transverse Variable Rate. When a transverse variable rate is shown on the plans, ensure that the nozzles outside the wheel paths will output a predetermined percentage more asphalt material by volume than the nozzles over the wheel paths. Use a dual spray bar distributor as desired to provide for a transverse variable rate.

http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/200-F_series/pdfs/bit200.pdf

3.1.2. Agitation for Asphalt-Rubber. If using asphalt-rubber, furnish a distributor capable of keeping the rubber in uniform suspension and adequately mixing the asphalt, rubber, and any additional additives.

3.1.3. Calibration.

3.1.3.1. Transverse Distribution. Furnish a distributor test report, less than 1 yr. old, when tested in accordance with Tex-922-K, Part III. The Department reserves the right to witness the calibration testing. Notify the Engineer 3 days before calibration testing.

Include the following documentation on the test report:

the serial number of the distributor, a method that identifies the actual nozzle set used in the test, and the fan width of the nozzle set at a 12-in. bar height.

When a transverse variable rate is required, and a single spray bar is to be used, perform the test using the type and grade of asphalt material to be used on the project. The Engineer may verify the transverse rate and distribution at any time. If verification does not meet the requirements, correct deficiencies and furnish a new test report.

3.1.3.2. Tank Volume. Furnish a volumetric calibration and strap stick for the distributor tank in accordance with Tex-922-K, Part I.

Provide documentation of distributor calibration performed not more than 5 yr. before the date first used on the project. The Engineer may verify calibration accuracy in accordance with Tex-922-K, Part II.

3.1.4. Computerized Distributor. When paying for asphalt material by weight, the Engineer may allow use of the computerized distributor display to verify application rates. Verify application rate accuracy at a frequency acceptable to the Engineer.

3.2. Aggregate Spreader. Use a continuous-feed, self-propelled spreader to apply aggregate uniformly at the specified rate or as directed. If racked in aggregate is specified on the plans, furnish a second aggregate spreader for the racked in aggregate to apply aggregate uniformly at the specified rate.

3.3. Rollers. Unless otherwise shown on the plans, furnish light pneumatic-tire rollers in accordance with Item 210, “Rolling.”

3.4. Broom. Furnish rotary, self-propelled brooms.

3.5. Asphalt Storage and Handling Equipment. When the plans or the Engineer allows storage tanks, furnish a thermometer in each tank to indicate the asphalt temperature continuously. Keep equipment clean and free of leaks. Keep asphalt material free of contamination.

3.6. Aggregate Haul Trucks. Unless otherwise approved, use trucks of uniform capacity to deliver the aggregate. Provide documentation showing measurements and calculation in cubic yards. Clearly mark the calibrated level. Truck size may be limited when shown on the plans.

3.7. Digital Distance Measuring Instrument. Furnish a vehicle with a calibrated digital distance measuring instrument accurate to ±6 ft. per mile.

4. CONSTRUCTION

4.1. General. Comply with the seal coat season as shown on the plans. Asphalt and aggregate rates shown on the plans are for estimating purposes only. Adjust the rates for existing conditions as directed.

http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/900-K_series/pdfs/cal922.pdf http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/900-K_series/pdfs/cal922.pdf http://ftp.dot.state.tx.us/pub/txdot-info/cst/TMS/900-K_series/pdfs/cal922.pdf

4.2. Temporary Aggregate Stockpiles. The Engineer will approve the location of temporary aggregate stockpiles on…