mixing and compaction recommendations for

MIXING and COMPACTION RECOMMENDATIONS for WARM

MIXING and COMPACTION RECOMMENDATIONS for WARM MIX ASPHALT (WMA) with RECYCLED ASPHALT SHINGLES (RAS) FINAL REPORT . May 2017 . Submitted by: Thomas Bennert . Research Professor Department of Civil and Environmental Engineering . Center for Advanced Infrastructure and Transportation . 100 Brett Road . Piscataway, NJ 08854 . External Project Manager

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Mixing and compaction recommendations for warm mix asphalt ...

Mixing and compaction recommendations for warm mix asphalt (WMA) with recycled asphalt shingles (RAS) : final report.

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Mixing and Compaction Recommendations for Warm Mix Asphalt ...

May 16, 2018  the inclusion of recycled asphalt shingles, whether they are post manufacturer or post consumer, will detrimentally impact the mixing and compaction properties of the asphalt mixtures; and that the addition of WMA technologies to the RAS asphalt mixtures does appear to aid in the compaction properties of the final asphalt mixture.

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Chapter 4 - Conclusions and Recommendations Mixing and ...

Recommendation of a New Method for Determining Mixing and Compaction Temperatures The objective of this research was to identify or develop a simple, reliable, and accurate procedure for determining mix- ing and compaction temperatures that is

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Laboratory Mixing and Compaction Temperatures for Asphalt ...

Feb 15, 2012  Lab Mixing and Compaction Temperatures • NCHRP 9-10 – Mixing and Compaction Temperatures for Modified Asphalt Binders – Task 9 • High concern by SHA’s • Unwilling to have to rely on manufacturer recommendations • Objective: Recommend new procedure • AAPT 2001 Paper – Khatri, Bahia, and Hanson

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Mixing and Compaction Recommendations for Warm Mix

May 16, 2018  the inclusion of recycled asphalt shingles, whether they are post manufacturer or post consumer, will detrimentally impact the mixing and compaction properties of the asphalt mixtures; and that the addition of WMA technologies to the RAS asphalt mixtures does appear to aid in the compaction properties of the final asphalt mixture.

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Mixing Compaction Temperatures - Transportation Research

MIXING AND COMPACTION TEMPERATURES FOR HOT-MIX ASPHALT Recommendations from NCHRP 9-39 Randy West Director National Center for Asphalt Technology John Casola Product Sales Manager Malvern Instruments.

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Determining Lab Mixing and Compaction Temperatures for ...

Asphalt Institute Technical Advisory Committee. Approved 7 December 2016. The Asphalt Institute recommends that, for unmodified asphalt binders, the laboratory mixing and compaction temperatures should be determined where the viscosity-temperature line crosses the viscosity ranges of 0.17 ± 0.02 Pa-s (mixing temperature range) and 0.28 ± 0.03 Pa-s (compaction temperature range).

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Front Matter Mixing and Compaction Temperatures of ...

TRB’s National Cooperative Highway Research Program (NCHRP) Report 648: Mixing and Compaction Temperatures of Asphalt Binders in Hot-Mix Asphalt explores enhanced test methods for determining laboratory mixing and compaction temperatures of modified and unmodified asphalt binders.

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Development of Recommendations for Compaction

Development of Recommendations for Compaction Temperatures in the Field to achieve Density and Limit as-built Permeability of HMA in Wisconsin 5. Report Date March 2009 6. Performing Organization Code ... Mix additives on the minimum temperature and the

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STANDARD METHOD FOR PREPARING AND DETERMINING

the compaction temperature for open graded mixtures be 260° F) Modified binders may not conform to these mixing and compactions temperatures and the manufacturer's recommendations should be followed. 5. After mixing, spread the loose mixture in a flat, shallow pan and short term condition the mixture as detailed in AASHTO R 30. 6.

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o07 compaction fundamentals - Oregon.gov

Compaction Fundamentals 7-19 Temperature Specs Mixing and Placement Temperatures –00745.43(b) Mixing and compaction temperature established by JMF or by Suppliers recommendation Maximum Temp at Plant = 350°F Minimum Temp Behind Paver: HMAC = 240°F WMAC= 215°F Temperatures my be adjusted up or down in 10°F increments if approved

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Determining Mixing and Compaction Temperatures of

The mixing temperature is the range of temperature. s. that . can. provide satisfactory aggregate coating during laboratory mixing, and the compaction temperature is the range of temperature. s. that . may. facilita. te appropriate densification during laboratory . compaction, without excessively degrading the asphalt binder. For

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A Material Engineer's Perspective: Field Compaction of ...

Dec 28, 2000  Obviously, for conventional materials, the compaction temperature for the AC 2.5 would be significantly lower than that for an AC-20. It is suggested that the purchaser follow the manufacturer's recommendations for mixing and compaction temperatures when

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Soil Compaction Handbook - Multiquip Inc

Types of compaction There are four types of compaction effort on soil or asphalt: Vibration Impact Kneading Pressure Soil Compaction Soil compaction is defined as the method of mechanically increasing the density of soil. In construction, this is a significant part of the building process. If

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Assessment Mixing and Compaction Temperatures for Modified ...

Dec 20, 2018  The objective of this study is determining the mixing and compaction temperature of the modified asphalt mixture. Results of binder tests showed that the addition of 3% SBS to control asphalt (PG 64-16) would achieve the desired performance level (PG 76-16) a performance grade that fits our climate with traffic loads. When using 5% SBS the performance grade of binder increased three

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Effect of Warm Mix Asphalt (WMA) Low Mixing and

The lowered mixing and compaction temperatures may not provide enough energy to have the RAP binder contribute to the overall binder within the mixture. The use of reclaimed asphalt pavement has also been on a constant rise for decades.

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How-to-Guide for Asphalt Pavement Compaction

So the paving industry relies on compaction to increase pavement density to extend pavement life. As a result of the compaction process, the asphalt-coated aggregate particles in the mix are forced closer together, which increases the amount of aggregate interlock and interparticle friction and also reduces the air void content of the mix.

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What is Compaction of Concrete? Its Methods, Guidelines ...

May 16, 2021  Its Methods, Guidelines, and Duration. Compaction or consolidation of concrete is necessary to remove entrapped air which is present in concrete after it is mixed, transported, and placed. Compacting also helps eliminate stone pockets and thereby eliminates all types of voids that may possibly be left in the concrete, causing a reduction in ...

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STANDARD METHOD FOR PREPARING AND DETERMINING

the compaction temperature for open graded mixtures be 260° F) Modified binders may not conform to these mixing and compactions temperatures and the manufacturer's recommendations should be followed. 5. After mixing, spread the loose mixture in a flat, shallow pan and short term condition the mixture as detailed in AASHTO R 30. 6.

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Development of Recommendations for Compaction

Development of Recommendations for Compaction Temperatures in the Field to achieve Density and Limit as-built Permeability of HMA in Wisconsin 5. Report Date March 2009 6. Performing Organization Code ... Mix additives on the minimum temperature and the

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o07 compaction fundamentals - Oregon.gov

Compaction Fundamentals 7-19 Temperature Specs Mixing and Placement Temperatures –00745.43(b) Mixing and compaction temperature established by JMF or by Suppliers recommendation Maximum Temp at Plant = 350°F Minimum Temp Behind Paver: HMAC = 240°F WMAC= 215°F Temperatures my be adjusted up or down in 10°F increments if approved

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METHODOLOGY FOR DETERMINING MOST SUITABLE

3.3 Asphalt Mix Design at Different Compaction Temperature Marshall Mix Design, which is one of the most common tools, is used in highway engineering for both mix design and evaluation. Although Marshall Method is essentially empirical, it is useful in comparing mixtures under specific conditions.

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Determining Mixing and Compaction Temperatures of

The mixing temperature is the range of temperature. s. that . can. provide satisfactory aggregate coating during laboratory mixing, and the compaction temperature is the range of temperature. s. that . may. facilita. te appropriate densification during laboratory . compaction, without excessively degrading the asphalt binder. For

get price

Assessment Mixing and Compaction Temperatures for Modified ...

Dec 20, 2018  The objective of this study is determining the mixing and compaction temperature of the modified asphalt mixture. Results of binder tests showed that the addition of 3% SBS to control asphalt (PG 64-16) would achieve the desired performance level (PG 76-16) a performance grade that fits our climate with traffic loads. When using 5% SBS the performance grade of binder increased three

get price

How-to-Guide for Asphalt Pavement Compaction

So the paving industry relies on compaction to increase pavement density to extend pavement life. As a result of the compaction process, the asphalt-coated aggregate particles in the mix are forced closer together, which increases the amount of aggregate interlock and interparticle friction and also reduces the air void content of the mix.

get price

What is Compaction of Concrete? Its Methods, Guidelines ...

May 16, 2021  Its Methods, Guidelines, and Duration. Compaction or consolidation of concrete is necessary to remove entrapped air which is present in concrete after it is mixed, transported, and placed. Compacting also helps eliminate stone pockets and thereby eliminates all types of voids that may possibly be left in the concrete, causing a reduction in ...

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Waste Today - May 2017 - Correct compaction

Good compaction promotes mixing and blending of materials, creating a more even surface at the landfill. ... See the table to the right for layer thickness recommendations based on the compactor’s weight. If the layer is thicker than these recommended values, the lower part of the layer will not receive enough pressure to reduce voids in the ...

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Soil Compaction Handbook - Multiquip Inc

Types of compaction There are four types of compaction effort on soil or asphalt: Vibration Impact Kneading Pressure Soil Compaction Soil compaction is defined as the method of mechanically increasing the density of soil. In construction, this is a significant part of the building process. If

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Part 3 COMPACTION TESTS

compaction than of pavement thickness. • Subsequent recommendations provided improved asphalt mix and compaction specifications. The YB-52 was a giant leap in scale over the heaviest World War II bombers shown here next to it, a B-17 and B-50 (background). Pavement Tests

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Factors Affecting Compaction of Asphalt Pavements

• What physical property controls the role of the binder for mixing and compaction of hot-mix asphalt (HMA)? • What is the optimum fluidity (viscosity?) for best-practice pavement construction? In 1962 the Asphalt Institute introduced recommendations for viscosity levels for mixing and for compaction that are still in use today (1,2). The ...

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Mixing and Compaction Temperatures of Asphalt Binders in ...

This report identifies improved test methods for determining laboratory mixing and compaction temperatures of modified and unmodified asphalt binders. The report will be of immediate interest to materials engineers in state highway agencies and the hot-mix asphalt (HMA) construction industry.

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(PDF) PART 1 -SUMMARY OF ROCKFILL PLACEMENT AND COMPACTION ...

PART 1 - SUMMARY OF ROCKFILL PLACEMENT AND COMPACTION GUIDELINES FOR MINE STRUCTURES Allan J. Breitenbach, P.E. AB Engineering Inc. Littleton, Colorado, USA Telephone: 1/720-981-5244 Telefax: 1/720-981-5245 Email: [email protected] Large quantities of mine waste rock material (non-ore overburden) are generally available from open pit mine cuts for use in

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