density of hot mix asphalt type a

How much does density matter? | Asphalt magazine

The normal target in-place density on a "dense" hot-mix asphalt pavement is 92 to 93 percent of Gmm (or 7 to 8 percent air voids). If a pavement has low density (usually defined as less than 92 percent of Gmm), the air voids are interconnected and premature pavement distresses can result. These may be in the form of premature oxidation ...

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MATERIAL SPECIFICATION FOR HOT MIX ASPHALT - Road Authority

HOT MIX ASPHALT TABLE OF CONTENTS . 1150.01 SCOPE . 1150.02 REFERENCES . ... LS-264 Theoretical Maximum Relative Density of Bituminous Paving Mixtures . ... Sixth Edition Mix Design Methods for Asphalt Concrete and Other Hot-Mix Types : 1150.03 DEFINITIONS : For the purpose of this specification, the following definitions apply: ...

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Superpave Mix Design – Pavement Interactive

Density and Voids Analysis All mix design methods use density and voids to determine basic HMA physical characteristics. Two different measures of densities are typically taken: Bulk specific gravity (G ). Theoretical maximum specific gravity (TMD, G mm ). These densities are then used to calculate the volumetric parameters of the HMA.

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HMA Mix Design Fundamentals – Pavement Interactive

Mix design is a process to manipulate three variables: (1) aggregate, (2) asphalt binder content and (3) the ratio of aggregate to asphalt binder with the objective of obtaining an HMA that is deformation resistant, fatigue resistant, low temperature crack resistant, durable, moisture damage resistant, skid resistant and workable.

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HOT MIX ASPHALT PAVEMENT DESIGN GUIDE

Hot mix asphalt is composed of aggregate bound togetherinto a solid mass by asphalt cement. The aggregates total ninety-three (93) to ninety-seven (97) percent by weight ofthe total mixture and are mixed with three (3) to seven (7) percent asphalt cement. It is manufactured in a central mixing plant where the asphalt and aggregates are heated,pr...

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Graniterock: Technical Reports

Type A hot mix requires that at least 90% of the coarse aggregate and 70% of Fine aggregate used contains crushed particles while Type B hot mix only requires 25% and 20% respectively. The angular rock particles in a crushed aggregate results in a higher stability hot mix than those hot mixes containing uncrushed round gravel type aggregates.

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Volumetric Design for Hot-Mix Asphalt (HMA)

Bulk Specific Gravity of Compacted Hot Mix Asphalt Using Saturated Surface-Dry Specimens Theoretical Maximum Specific Gravity and Density of Hot Mix AsphaltPaving Mixtures Specific Gravity of Semi-Solid Bituminous Materials 1This Standard Operating procedure is based on AASHTO T 323-04 R 76 T 275

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Marshall Mix Design – Pavement Interactive

The Marshall mix design method consists of 6 basic steps: Aggregate selection. Asphalt binder selection. Sample preparation (including compaction) Stability determination using the Hveem Stabilometer. Density and voids calculations. Optimum asphalt binder content selection.

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Density of In-Place Hot Mix Asphalt (HMA) Pavement by Electronic ...

This procedure covers the in-place density determination of Hot Mix Asphalt (HMA) in accordance with AASHTO T343using an electronic surface contact device / gauge. This field operating procedure is derived from AASHTO T343. The gauge measures density and relative compaction of HMA pavements by measuring changes in the electromagnetic field res...

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VDOT Mixes & Guidelines – ia Asphalt Association

In most instances, only one surface mix lift will be placed on a project. SM-9.5A This mix is a 'fine' to 'medium' (3/8 inch (9.5 mm) nominal maximum aggregate size) surface mix generally placed at 1 ½ inches (40 mm) in thickness. The 'A' designation corresponds to the Performance Graded (PG) asphalt binder of PG 64S-22 required in the mix.

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SECTION 330 HOT MIX ASPHALT - GENERAL CONSTRUCTION REQUIREMENTS

cores, a nuclear density gauge, or other density measuring device, at a minimum frequency of once per 1,500 feet of pavement. 2. Mix Temperature: Determine the mix temperature at the roadway for the first five loads and one out of every five loads thereafter. 3. Mix Spread Rate: Monitor the mix spread rate at the beginning of each day's

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HOT MIX ASPHALT PAVEMENT DESIGN GUIDE

Hot mix asphalt is composed of aggregate bound together into a solid mass by asphalt cement. The aggregates total ... These parameters include the type of liquid asphalt which,in all but the most unusual ... dry weight density as determined by AASHTO Designation T-18O,Method C or D as applicable. (Note:There are areas in

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What is Hot Mixed Asphalt? | Kilgore Companies

There are two designs of Hot Mixed Asphalt depending on size: Standard HMA The Standard HMA has a maximum size of 3/8 inch (9 mm), with a water-to-cementitious material (w/c) ratio of around 0.50 to 0.60. It's effective for most residential streets, driveways, etc. Superpave HMA Superpave mixes have a maximum size of 1/4 inch (6 mm).

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DENSITY OF ASPHALT CONCRETE - HOW MUCH IS NEEDED? - Energy

mix production,creating an increase in dust,thus altering the properties of the compacted asphalt mixture. The density produced with a manual hammer has been shown to correlate with density in the field after traffic (7). Hence any other type of compaction (mechanical or otherwise) must be calibrated to produce a density

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Asphalt - Pavement & Materials - Pavements - Federal Highway Administration

Asphalt - Pavement & Materials - Pavements - Federal Highway Administration U.S. Department of Transportation Federal Highway Administration 1200 New Jersey Avenue, SE Washington, DC 20590 202-366-4000 About Programs Resources Briefing Room Contact Search FHWA Pavements Design & Analysis Materials Quality Assurance Sustainability

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Item 340 Dense-Graded Hot-Mix Asphalt (Small Quantity)

Item 340 Dense-Graded Hot-Mix Asphalt (Small Quantity) DESCRIPTION Construct a hot-mix asphalt (HMA) pavement layer composed of a compacted, dense-graded mixture of aggregate and asphalt binder mixed hot in a mixing plant. This specification is intended for small quantity (SQ) HMA projects, typically under 5,000 tons total production.

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Density of In-Place Hot Mix Asphalt (HMA) Pavement by Electronic ...

This procedure covers the in-place density determination of Hot Mix Asphalt (HMA) in accordance with AASHTO T343using an electronic surface contact device / gauge. This field operating procedure is derived from AASHTO T343. The gauge measures density and relative compaction of HMA pavements by measuring changes in the electromagnetic field

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Asphalt Calculator - How Much Asphalt Do I Need? - ToolCrowd

Warm Mix Asphalt– With warm mix asphalt, the aggregate, filler, and binder are heated at the production facility to a temperature usually between 30-120°F lower than an equivalent hot asphalt mixture, without degrading the quality or performance of the end product.

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TS 1151 Material Specification for Superpave and Stone Mastic Asphalt ...

Section 1151.03 of OPSS.MUNI 1151, the existing definition for Hot Mix Asphalt (HMA) types is deleted in its entirety and replacing it with the following: Hot Mix Asphalt (HMA) Types. means Superpave and SMA mixes, including Superpave 4.75, 9.5, 12.5, 12.5 FC1, 12.5 FC2, 19.0 and 25.0 and SMA 9.5, 12.5, and 19.0.

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SECTION 330 HOT MIX ASPHALT - GENERAL CONSTRUCTION REQUIREMENTS

This Section specifies the basic equipment and construction requirements for hot mix asphalt (including warm mix asphalt) pavements and bases. Establish and maintain a quality control system that provides assurance that all materials, products and completed construction submitted for acceptance meet Contract requirements.

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Density of In-Place Hot Mix Asphalt (HMA) Pavement by Electronic ...

Maximum density to 0.1 lb/ft3. Percent compaction to 0.1%. Name and signature and STQP / WAQTC qualification number of the tester. Quality Assurance IDAHO FOP's 580.00 1/13 AASHTO T 343 PERFORMANCE EXAM CHECKLIST Density of In-Place Hot Mix Asphalt (HMA) Pavement by Electronic Surface Contact Devices FOP for AASHTO T 343

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Choosing the Right Asphalt Mix For the Right Road - NCDOT

From Chart, mix type should be C. "hourly ESALs" = (30 tractor trailers) + (45 single units)/3 = 45 From Chart, mix type should be C. Look at the thickness chart! A very rough guideline Each inch of ABC counts as ½ inch of asphalt. "hourly ESALs" = (30 tractor trailers) + (45 single units)/3 = 45

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Asphalt Pavement Construction - Asphalt Institute

Keep in mind that density is a relative term, compared to a target density of either lab compacted mix, a maximum theoretical density, or a control strip density. Procedures for using the three methods are spelled out on Page 7-17 to 7-21 of the new MS-22 and Page 241 of the old MS-22.

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Graniterock: Technical Reports

At Graniterock, all of our hot mix aggregates are crushed and thus qualify as for producing Type A asphalt hot mix. Type A has a Los Angeles Rattles Specification of 10% material breakdown at 100 revolutions and 45% at 500 revolutions. The Type B Specification has only a Specification for 50% breakdown at 500 revolutions.

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EDC-1: Warm Mix Asphalt | Federal Highway Administration

Warm Mix Asphalt (WMA) is the generic term for a variety of technologies that allow producers of Hot Mix Asphalt (HMA) pavement material to lower temperatures at which the material is mixed and placed on the road. It is a proven a technology that can: Reduce paving costs. Extend the paving season. Improve asphalt compaction.

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How to Calculate Asphalt Weight Per Yard - Home Guides

The equation is: 240 square feet x (2/12) feet = 40 cubic feet. 3. Multiply Volume by the Density. Asphalt Institute notes that the density of hot-mix asphalt is around 142 to 148 pounds per cubic ...

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SECTION 402 – HOT MIX ASPHALT, HMA, PAVEMENT

SECTION 402 – HOT MIX ASPHALT, HMA, PAVEMENT 402.01 Description. This work shall consist of one or more courses of HMA base, ... Mixture Type Type A Type B Type C Design ESAL 200,000 1,000,000 11,000,000 ... density of the HMA course is in accordance with 402.16. All partially completed sections of roadway that are 200 mm (8 in.) or less in ...

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SECTION 23 – ASPHALT CONCRETE TABLE OF CONTENTS

Mix designs for Type A, Type B, Open Graded, and ARHM must meet all of the requirements of Section 39-1.03B, "Hot Mix Asphalt Mix Design", of the State Specifications. The Contractor must submit a job mix formula and mix design to the Agency for approval. Mix designs must be accompanied by current test results that indi...

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SECTION 330 HOT MIX ASPHALT - GENERAL CONSTRUCTION REQUIREMENTS

the pavement. Monitor the roadway density with either 6 inch diameter roadway cores, a nuclear density gauge, or other density measuring device, at a minimum frequency of once per 1,500 feet of pavement. 2. Mix Temperature: Determine the mix temperature at the roadway for the first five loads and one out of every five loads thereafter. 3.

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Hot Mix Asphalt | Asphalt Calculator | Calculate Aggregate Tonnage

Hot mix asphalt (HMA) pavement refers to the bound layers of a flexible pavement structure. Asphalt pavement material is a precisely engineered product composed of about 95 percent stone, sand, and gravel by weight, and about 5 percent asphalt cement, a petroleum product. Asphalt cement acts as the glue to hold the pavement together.

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Marshall Mix Design – Pavement Interactive

All mix design methods use density and voids to determine basic HMA physical characteristics. Two different measures of densities are typically taken: Bulk specific gravity (G ). Theoretical maximum specific gravity (TMD, G mm ). These densities are then used to calculate the volumetric parameters of the HMA.

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Hot Mix Asphalt Gyratory Mix Design Procedure - North Dakota Department ...

For ND T 209, Theoretical Maximum Specific Gravity (Gmm) and Density of Hot Mix Asphalt (HMA), weigh out the appropriate amounts of the required aggregate size fractions and combine in a bowl to the proper batch weight. Typically, a batch weight of 2000 - 2500 grams of aggregate will provide enough material for the ND T 209 test.

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