effective asphalt content formula

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effective asphalt content formula -

The formula is: baP be = P b - (s P 100) P (Eq. Percent of Effective (asphalt) Binder (Pbe) P be is the total asphalt binder content of a paving mixture minus the portion of asphalt binder that is lost by absorption into the aggregate particles, expressed as a percentage of the mass of aggregate. There are sure to be several other reasons that ...

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effective asphalt content formula - Brian McKnight

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Asphalt Content - an overview ScienceDirect Topics

Effective asphalt content is calculated by subtracting the amount of absorbed asphalt from the total asphalt content. The absorptiveness of an aggregate is obviously an important consideration in determining the asphalt content of a mixture.

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DETERMINING THE ASPHALT BINDER CONTENT OF HOT

2012-11-20  corrected asphalt binder content. Pb = BC – MC – Cf (if not input in the furnace controller) where: Pb = the corrected asphalt binder content as a percent by mass of the HMA BC = asphalt binder content shown on printed ticket MC = moisture content of the companion HMA sample, percent, as

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VOLUMETRIC ANALYSIS OF HMA MIXTURES

2006-11-9  Effective Asphalt Content The effective asphalt content is the total asphalt content minus the percent lost to absorption? P be = P b-P ba 100 P s

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Volumetrics in Asphalt Mixtures

2019-3-18  Effective asphalt content is the volume of asphalt not absorbed by the aggregate; the amount of asphalt that effectively forms a bonding film on the aggregate surfaces. Effective asphalt content is calculated by subtracting the amount of absorbed asphalt from the total asphalt content. The absorptiveness of an aggregate is obviously an important consideration in determining the asphalt content

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5.17.04 CALCULATIONS FOR THE MARSHALL MIX DESIGN

2021-5-10  aggregate particles, and is the asphalt content on which service performance of an asphalt paving mixture depends. The formula is: baP be = P b - (s P 100) P (Eq. 5, Figure 1) Where: P be = effective asphalt content, percent by total weight of mixture. P b = asphalt, percent by total weight of mixture. P ba = absorbed asphalt, percent by weight of aggregate. P s = aggregate, percent by total

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5.10.4. CALCULATIONS FOR THE MARSHALL MIX DESIGN

2021-5-10  It is the portion of the total asphalt content that remains as a coating on the outside of the aggregate particles, and is the asphalt content on which service performance of an asphalt paving mixture depends. The formula is: be b ba P = P - ( s P 100) P (Eq. 5, Figure 1) Where: Pbe = effective asphalt content, percent by total weight of mixture.

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HMA Weight-Volume Terms and Relationships –

Weight of effective asphalt binder: V eff: equals: Effective volume of aggregate = (V T – V AC) W ba: equals: Weight of absorbed asphalt binder: W agg: equals: Weight of aggregate: G sa: equals: Apparent specific gravity of the aggregate: G b: equals: Asphalt binder specific gravity: P b: equals: Asphalt content by weight of mix (percent) G sb: equals: Bulk specific gravity of the aggregate: P s

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Volumetric Design for Hot-Mix Asphalt (HMA)

2020-4-17  Effective Asphalt Content (P be) – The total asphalt content of a paving mixture minus theportion of asphalt that is lost by absorption into the aggregate particles (Note 1). 4. Summary of the Practice 4.1 Materials Selection – Binder and aggregate and RAP stockpiles are selected that meet the

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SPECIAL BULLETIN 3-A QUALITY OF ASPHALT PAVEMENT

effective asphalt cement content and the film thickness without compromising other performance ... Once the job mix formula (JMF) and aggregate proportions are locked in, the air voids content for acceptance in the field is reduced from the 4 per cent value used for design to a lower value.

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See Figure 12 Effective Asphalt Content Pbe the total ...

See Figure 12 Effective Asphalt Content Pbe the total asphalt content of a from CE 354 at Massachusetts Institute of Technology

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Balanced Asphalt Mixture Design – A Formula for Success

2020-1-28  •Asphalt cement 12 to 15% / Sand 70 to 83% / Pulverized carbonite of lime 5 to 15% 1905 •Clifford Richardson, New York Testing Company •Surface sand mix: 100% passing No. 10, 15% passing No. 200, 9 to 14% asphalt •Asphaltic concrete for lower layers, VMA terminology used, 2.2% more VMA than current day mixes or ~0.9% higher binder content

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WAQTC TM 13 (16)

2018-10-8  Percent of Effective (asphalt) Binder (Pbe) P be is the total asphalt binder content of a paving mixture minus the portion of asphalt binder that is lost by absorption into the aggregate particles, expressed as a percentage of the mass of aggregate. It is the portion of the asphalt binder content that remains as a coating on the

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Binder Content – Pavement Interactive

Asphalt binder content affects HMA mixture performance in the areas of stiffness, strength, durability, fatigue life, raveling, rutting and moisture damage. Therefore, it is important in HMA quality assurance, pavement forensic investigations and HMA research. The ignition test is the most common method used to determine HMA asphalt binder content.

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Low Asphalt Content Solutions - Quality in California

2012-7-9  If the plant is set higher than the actual moisture the computer will think that you are putting in less rock than you actual are and add less asphalt than you need per your mix formula. One way to check this is testing the feed aggregates for their moistures and comparing the combined moisture content to what is entered in the computer.

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Selection of Maximum Theoretical Specific Gravity for ...

At the asphalt content at which the mixture is considered saturated (i.e., zero voids), the effective specific gravity of the combined aggregates in the molded specimen is determined by the fol­ lowing formula: Gse = (100 - Pb)/[(100/Gmb) - (Pb!Gb)] where Gse = effective specific gravity of combined aggregates,

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Effective 07/01/11 - RTC Transit

2011-2-8  5. Unless otherwise specified, voids determinations and effective asphalt contents will be determined and reported in accordance with procedures described herein. C. The job-mix formula shall be selected in accordance with the following procedures: 1. Determine asphalt content required for 4 percent air voids, and 2.

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Four tips for controlling asphalt mix designs in the lab ...

If the asphalt binder content of the RAP is known or determined, then the effective specific gravity Gse of the RAP aggregate can be calculated (Equation 2) and used instead of the Gsb. The advantage of using Gse is it’s easy to determine Gmm, and it’s one of the most repeatable tests we have.

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Properties Considered in Mix Design Superpave Mix

2012-3-13  particles with an adequate film. Total binder content and effective binder content are the terms normally used. Total binder content is the amount of the binder that is required to be added to the HMA to produce the desired HMA qualities. Effective binder content is the volume of binder not absorbed by the aggregate, i.e., the amount of

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How do I calculate the percentage of asphalt in a mix?

2021-6-15  The percentage of asphalt is: % asphalt in mix = weight asphalt / total weight. The weight of the asphalt is the gallons of converted to pounds times the percentage of asphalt in the emulsion. Using just asphalt, as in hot mix, the percentage would be 100%. For emulsions you should check with supplier, but the range is typically 55-70% asphalt.

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WAQTC TM 13 (16)

2018-10-8  Percent of Effective (asphalt) Binder (Pbe) P be is the total asphalt binder content of a paving mixture minus the portion of asphalt binder that is lost by absorption into the aggregate particles, expressed as a percentage of the mass of aggregate. It is the portion of the asphalt binder content that remains as a coating on the

Get price

Balanced Asphalt Mixture Design – A Formula for Success

2020-1-28  •Asphalt cement 12 to 15% / Sand 70 to 83% / Pulverized carbonite of lime 5 to 15% 1905 •Clifford Richardson, New York Testing Company •Surface sand mix: 100% passing No. 10, 15% passing No. 200, 9 to 14% asphalt •Asphaltic concrete for lower layers, VMA terminology used, 2.2% more VMA than current day mixes or ~0.9% higher binder content

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See Figure 12 Effective Asphalt Content Pbe the total ...

See Figure 12 Effective Asphalt Content Pbe the total asphalt content of a from CE 354 at Massachusetts Institute of Technology

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Low Asphalt Content Solutions - Quality in California

2012-7-9  If the plant is set higher than the actual moisture the computer will think that you are putting in less rock than you actual are and add less asphalt than you need per your mix formula. One way to check this is testing the feed aggregates for their moistures and comparing the combined moisture content to what is entered in the computer.

Get price

Effective 07/01/11 - RTC Transit

2011-2-8  5. Unless otherwise specified, voids determinations and effective asphalt contents will be determined and reported in accordance with procedures described herein. C. The job-mix formula shall be selected in accordance with the following procedures: 1. Determine asphalt content required for 4 percent air voids, and 2.

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Determination of the Voids in the Mineral Aggregate (VMA)

effective specific gravity of the aggregate contained in the RAP for the purpose of the calculation in Subsection 3.2. The calculation for the effective specific gravity may be found in CP 56. NOTE 1: For more detailed information on VMA determination and related subjects, refer to the Asphalt Institute publication MS-4.

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Standard No.: Effective Date Current: March 20 ...

2020-9-14  4.5 Job Mix Formula (JMF) 4.5.1 Recommended asphalt cement content, % of total weight of bituminous mix 4.5.2 Asphalt cement contribution of the RAP, % of total weight of bituminous mix 4.5.3 Design combination (blend) of aggregates, % of total mass of the dry aggregates

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Four tips for controlling asphalt mix designs in the lab ...

If the asphalt binder content of the RAP is known or determined, then the effective specific gravity Gse of the RAP aggregate can be calculated (Equation 2) and used instead of the Gsb. The advantage of using Gse is it’s easy to determine Gmm, and it’s one of the most repeatable tests we have.

Get price

Properties Considered in Mix Design Superpave Mix

2012-3-13  particles with an adequate film. Total binder content and effective binder content are the terms normally used. Total binder content is the amount of the binder that is required to be added to the HMA to produce the desired HMA qualities. Effective binder content is the volume of binder not absorbed by the aggregate, i.e., the amount of

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