hot mix asphalt temperature

Temperature Range for Hot Mix Asphalt | Top West Asphalt

What is the proper temperature range for hot mix asphalt? Hot mix asphalt gets its name from the fact that it is mixed, transported to the job site, and poured at a high temperature. Exactly what that temperature is varies according to the exact grade of asphalt. More viscous asphalt requires higher temperatures. In general, though, the minimum temperature ranges from approximately 107 C to 121 C.

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FHWA Hot Mix Asphalt Pavement Guidelines

Because the contractor is responsible for compacting the pavement, then the contractor should have the authority to dictate factors such as mix temperature (165 °C is the maximum), rolling trains, patterns, or passes. References: 1. Standard Construction Specifications 2.

EDC-1: Warm Mix Asphalt | Federal Highway Administration

Lower Temperatures, Lower Costs, More Opportunities.

Understanding the differences between hot mix asphalt and ...

Hot mix asphalt or HMA is the designation given to asphalt mixtures that are heated and poured at temperatures between 300 and 350 degrees Fahrenheit.

Hot Mix vs Cold Mix Asphalt - Advantages and Disadvantages

Hot mix asphalt is heated at the production facility to a temperature of 300 to 350 degrees before being shipped and laid at the job site. Hot-mix asphalt cools quickly to allow for quicker installation.

What’s the Difference Between Hot, Warm, and Cold Mix …

Hot mix asphalt is heated and poured at temperatures ranging from 300 to 350 degrees Fahrenheit. Chances are, this is the asphalt that has been used on projects around your home in the past and on the streets, highways, and interstates around it.

Feeling the heat | Asphalt magazine

“If the mix is allowed to cool to below 180°F to 190°F before the proper density is reached, the mix will be so stiff that additional compaction efforts can actually crush the aggregate in the mix.”

What is the temperature of asphalt at the time of lying ...

Hot mixed asphalt is manufactured at temperatures between270°F and325°F. Depending on the environmental conditions and the distance from the hot mix plant to the project, hot mix asphalt can lose between5°F and25°F. The temperature of the mix on the base after it has passed through...

Why Tracking Temperatures is Key to Successful Asphalt …

Nov 20, 2019 · Hot mix asphalt is manufactured at temperatures between 270° F and 325° F. Depending on the environmental conditions and the distance from …

Asphalt Pavement Construction - Asphalt InstituteAsphalt ...

Mixes must be placed and compacted before they cool to 185 o F, so the minimum temperature will depend on the temperature of the layer upon which it is being placed as well as ambient conditions. Generally, agency specifications will spell out a minimum acceptable temperature for the mix.

How to Successfully Achieve Cold Weather Asphalt Paving

Oct 02, 2014 · When placing hot-mix asphalt (HMA), ensure that the mix temperature is a minimum of 290 degrees F at the mid-depth of the mat behind the screed when …

Asphalt Paving: Temperature & Timing - Alpha Paving

Jan 15, 2020 · When it arrives at the job site, hot-mix asphalt is normally between 275 and 300 degrees Fahrenheit. For the initial rolling, the temperature of the mix needs to be between 220 and 290 degrees Fahrenheit. If the mix temperature falls below approximately 185 degrees Fahrenheit before the final compaction, it will be too stiff to compact properly.

Compacting Hot-Mix Asphalt Pavements: Part I | Roads & …

Dec 28, 2000 · An asphalt- mix must be fully compacted before it cools to a temperature of about 175 F. At temperatures above this value, the mix is normally still warm enough for the compaction equipment to reorient the aggregate particles

Warm Mix Asphalt - EAPA

Hot Mix Asphalt is produced and mixed at temperatures roughly between 120 and 190 °C The production temperatures of Hot Mix Asphalt depend on the bitumen used. The lower mixing and paving temperatures, obtained by the use of Warm Mix Asphalt, minimise fume and odour emissions and creates cooler working conditions for the asphalt workers.

Hot Mix Asphalts 101 - New Jersey

Asphalt? Tire rubber is an engineering tool to: – Reduce cracking – Naturally increase asphalt content and asphalt film thickness (providing an increase in durability) – High asphalt binder viscosity prevents bleeding, flushing and drain-down – Asphalt enhancement due to rubber increases both the high and low temperature performance

Why Is Asphalt Temperature Important? | Lone Star Paving

May 22, 2019 · Asphalt Mix Temperature. Not surprisingly, hot-mix asphalt is delivered to job sites at high temperatures. It usually arrives at temps between 275 and 300 degrees Fahrenheit. Letting asphalt significantly cool down before application is not recommended. If the mix falls below 185 degrees, it becomes too rigid to properly compact over the paving surface.


Section 02741 - Hot Mix Asphalt (HMA)

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SECTION 02741. HOT MIX ASPHALT (HMA) PART 1 GENERAL. 1.1 SECTION INCLUDES. A. Products and procedures for placing and compacting a surface course of one or more layers of HMA comprised of aggregate, asphalt binder, hydrated lime, and other additives.

Mixing and Compaction Temperatures of Asphalt Binders in ...

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A Guide to Asphalt Driveways

Asphalt driveway material is similar to what you see road crews laying on roads. Also called hot mix or hot mix asphalt, it is an aggregate of stone and sand, along with a slurry of asphalt, a tar-like material made from petroleum. The asphalt is heated to over 300 F to liquefy it.


The plant discharge temperature for any mixture shall not be more than 315F ° whenever PG 64-22 or PG 70-22 binders are used or not more than 325F whenever ° PG 76-22 binder is used.

Project Organization, Mix Design, and Quality Control

contain coarse aggregate with a nominal maximum size larger than 25 mm (1 in.). As seen in Figure 1-1a, these mixes have a higher percentage of

Compacting Hot-Mix Asphalt Pavements: Part II | Roads ...

Dec 28, 2000 · Editor's note: This is the second installment of a two-part series on asphalt compaction. In the August issue, Scherocman, a consulting engineer

Frequently Ask Questions | Asphalt Enterprises Atlanta, GA

Assuming that the initial asphalt pavement was designed and constructed properly, the primary cause of failure is the penetration of water into the asphalt base.

Hot Mix Asphalt (HMA)

Hot mix asphalt (HMA) is known by many different names, such as hot mix, asphalt , asphalt or blacktop. It is a combination of stone, sand or gravel bound together by asphalt cement.

Hot Mix Asphalt (HMA) for local agency applications | WSDOT

Hot Mix Asphalt (HMA) is a combination of aggregate and asphalt binder mixed at an elevated temperature to form a hard, strong pavement construction material.

Asphalt QMS - 2016

6-24 6.9 Replaced ± 15° F with ± 25° F (mix temperature range at the plant). 6-24 6.9 Replaced +15 °F to -25 °F with ± 25° F (mix temperature range at the roadway). Section 7: Asphalt Mixture Sampling and Testing Page No. Subsection Change

Compaction of Hot Mix Asphalt Concrete

Definitions and Discussion Hot mix asphalt is composed of asphalt, mineral aggregate and air. Compaction is the process by which the asphalt and aggregate

Hot Mix Asphalt (HMA)

Hot mix asphalt (HMA) is known by many different names, such as hot mix, asphalt , asphalt or blacktop. It is a combination of stone, sand or gravel bound together by asphalt cement. After it is mixed at a high temperature, laid and compacted, the result is …

Warm Mix Asphalt vs. Hot Mix Asphalt. What is it ...

Jan 09, 2017 · WMA production methods use temperatures 30 to 120 degrees Fahrenheit lower than traditional hot-mix asphalt. Because less energy is needed to heat the asphalt mix, less fuel is needed to produce WMA. Fuel consumption during WMA manufacturing is typically reduced by 20% In …

Hot Mix Asphalt | Asphalt Calculator | Calculate Aggregate ...

Asphalt cement acts as the glue to hold the pavement together. Our HMA is mixed at our asphalt production facilities located throughout northern New England. Placed and compacted at elevated temperatures, hot mix asphalt pavements are typically applied in multiple layers, with the lower layers acting to support the top layer, known as the surface or friction course.

Hot-Mix Asphalt Laydown and Compaction

mix to a windrow on the roadway in front of the paver. The windrow can be formed in one of two ways. First, a spreader box or windrow sizer can be used. In this case, the mix is deposited into the box and is uniformly metered out onto the roadway as the truck moves for­ …

Hot Mix Asphalt | Southern Crushed Concrete

Hot mix asphalt is typically comprised of stone, sand or gravel bound together by asphalt cement; production of hot mix asphalt occurs with elevated temperatures (above 300°F). Choosing hot mix asphalt for your paved road or surface has its advantages; it is known for its smoothness and safety advantages with improved skid resistance...

Hot Mix Asphalt (HMA) Selection Guidance - December …

Stress Mixtures, increase the high temperature binder by one grade and add the polymer. The increase in the high temperature number results in an asphalt binder with improved high temperature stiffness or rutting resistance for both the leveling and top course. Example: For a high stress application for a mixture type 5E3 placed in an


13.6 DESIGN MIX FORMULA (DMF)/JOB MIX FORMULA (JMF) (Rev. 09-29-09) The DMF is the format by which the ontractoc r communicates its design for each HMA mixture to District Testing. ITM 583, Certified Hot Mix Asphalt Producer Program, is the primary document that includes requirements related to the development of DMFs.


Hot mix asphalt is composed of aggregate bound together into a solid mass by asphalt cement. The aggregates total ninety-three (93) to ninety-seven (97) percent by weight of the total mixture and are mixed with three (3) to seven (7) percent asphalt cement.


HOT MIX ASPHALT SECTION 401 - PLANT PRODUCTION 401-1 DESCRIPTION. The contractor is responsible for Quality Control (QC). QC is defined as all ... Temperature Range P oC 110-150 110-150 120-165 NOTES: 1. All aggregate percentages are based on the total weight of the aggregate.


contained in the Material Safety Data Sheet (MSDS). The WSDOT specifications state PG64-22 asphalt at hot mix plants may be heated to a maximum temperature of 177°C (350°F). However, the preferred storage temperatures for

Section 400 Hot Mix Asphaltic Concrete Construction

Create a hole in each side of the bed so that the temperature of the loaded mixture can be checked. Ensure that the mixture is delivered to the roadway at a temperature within ± 20 °F (± 11 °C) of the temperature on the job mix formula.

Laboratory Mixing and Compaction Temperatures for …

Lab Mixing and Compaction Temperatures • Background – Modified Asphalt Binders in the Marshall Mix Design System • Produced higher air voids, lower density

Is Autumn Too Cold for Asphalt Paving and Asphalt Repairs ...

Compression becomes more difficult and stability degrades when the mix cools. The sweet spot for regular paving and applying Hot Mix Asphalt is about 20 degrees Celsius (70 degrees Fahrenheit). Under normal temperature conditions, you should expect to pay about $2.00 - $4.00 per square foot for …

Warm Mix Asphalt for Cold Weather Paving

4.3 Mixing temperatures for hot mix asphalt according to Alverk ’95 .....51 4.4 Placement temperatures for hot mix asphalt according to Alverk ’95.........................51 4.5 Pollutant measurements from Hofdi ltd. for 2003 and 2004 .......................................57

Asphalt Patching and Pothole Filling: Hot or Cold Patches ...

Hot Mix. This is the very best choice the homeowner can make when it comes to pothole repair. It is a permanent asphalt repair option that will see you well into long term asphalt upkeep and maintenance. If you are in the right season and have the financial means to afford it, hot mix is certainly the way to go when it comes to asphalt repair.

Item 341 Dense-Graded Hot-Mix Asphalt

Warm Mix Asphalt (WMA) is defined as HMA that is produced within a target temperature discharge range of 215°F and 275°F using approved WMA additives or processes from the Department’s MPL.

Warm Mix Asphalt | Asphalt Paving CT

Warm Mix Asphalt is the generic name of technologies that allow the producers of Hot Mix Asphalt to lower the temperatures at which the material is mixed and placed on the road. Reductions of 50 to 100 degrees Fahrenheit have been documented.

Chapter 4 Construction Details

The job mix formula is accepted if Form CEM-3513, “Caltrans Hot Mix Asphalt Verification,” was issued within 12 months of proposed HMA production. The resident engineer signs and returns Form CEM-3511. 2. The job mix formula must be verified if Form CEM-3513 was not issued within 12 months of proposed HMA production.

How to Asphalt Roller Patterns Achieve Density and Production

Especially for compaction, the variables of how much HMA is produced and when it is delivered influence the temperature of the asphalt when compacted. Mix temperature …




401.06 Asphalt Cements. The type and grade of asphalt cement will be specified in the Contract. The asphalt cement shall meet the applicable requirements of section 702.

Warm Mix Asphalt - West Virginia Paving

Warm-Mix Asphalt is a new product offered by West Virginia Paving at select plant locations as part of the West Virginia Paving "Green Initiative" plan. We here at West Virginia Paving feel that it...

Hot Mix Asphalt with Intelligent Compaction | Caltrans

Proper compaction of hot mix asphalt is one of the most important process in construction of a long lasting pavement. Pavement materials must be compacted to optimum densities to ensure adequate support, stability, and strength—achieving these densities uniformly is the …

How can I determine the appropriate curing time for ...

Is asphalt mastic a state of asphalt where bitumen and filler are considered as asphalt mastic or asphalt mastic is a type of asphalt where the is itself in a flowing ...

Warm Mix Asphalt Cost and Benefits

Mar 16, 2019 · Warm mix asphalt is a relatively new process of creating asphalt pavement that reduces greenhouse emissions and is safer for construction workers.

Chapter 2 - Findings | Evaluation of Indirect Tensile Test ...

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Cold Patch Asphalt, Cold Mix Asphalt Year-Round

While the prime purpose of cold patch asphalt is emergency pothole repair, UNIQUE Paving Materials’ UPM is a high-performance cold mix for year-round use!