talking asphalt density and compaction february 2012

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Talking Asphalt: Density and compaction – February 2012 ...

Talking Asphalt: Density and compaction – February 2012. ... This column is about density and compaction. I believe density is the most critical construction property influencing pavement performance. ... For asphalt pavements, compaction is the means of compressing the asphalt mix into a smaller volume. This process forces the aggregate ...

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Talking Asphalt: Intelligent Compaction – March 2012 ...

Talking Asphalt: Intelligent Compaction – March 2012. In February’s blog, I shared some thoughts on density and its importance. That column mentioned that there is a new tool, Intelligent Compaction (IC), to aid in monitoring and achieving compaction. I want to share a little bit about IC.

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Laboratory Mixing and Compaction Temperatures for Asphalt ...

Feb 15, 2012  15 February 2012 Indianapolis, IN. Acknowledgments ... lower density – Impact compaction with fixed energy input » Affected by mix stiffness = ƒ(temperature/binder ... and Compaction Temperatures of Asphalt Binders in Hot Mix Asphalt – Purpose • Identify or develop a simple, rapid, and accurate ...

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DETERMINING THE IN-PLACE DENSITY AND

February 2012 DEPARTMENT OF TRANSPORTATION . DIVISION OF ENGINEERING SERVICES Transportation Laboratory 5900 Folsom Boulevard Sacramento, California 95819-4612 . DETERMINING THE IN-PLACE DENSITY AND RELATIVE COMPACTION OF HOT MIX ASPHALT PAVEMENT USING NUCLEAR GAGES . A. SCOPE

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Asphaltic Mixture Compaction and Density Validation

Density is one of the primary acceptance criteria and indicators of hot mix asphalt (HMA) performance. Poor field compaction may result in low density and significantly increase a pavement’s susceptibility to surface cracking due to reduced surface strength. Low density also

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Comprehensive Evaluation of Compaction of Asphalt ...

COMPREHENSIVE EVALUATION OF COMPACTION OF ASPHALT PAVEMENTS AND DEVELOPMENT OF COMPACTION MONITORING SYSTEM 5. Report Date Submitted: January 2012 Published: April 2012 6. Performing Organization Code 7. Author(s) Emad Kassem, Tom Scullion, Eyad Masad, Arif Chowdhury, Wenting Liu, Cindy Estakhri, and Samer Dessouky 8.

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Compaction of Hot Mix Asphalt Concrete

Density can be defined as the unit weight of the asphalt concrete acheived through the compaction process. Hence, the objective of compaction is to produce a dense mass with high unit weight. Again, the choice is between achieving a high density at the time of construction

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KENTUCKY TRANSPORTATION CENTER

Unfortunately, many variables can affect the compaction of an asphalt mixture and its initial construction density. Some of these variables (e.g. mixture type and asphalt binder grade) will also affect the ultimate density that is achieved. By gaining a better understanding of the relationship between asphalt density and asphalt performance, more

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Compaction of Asphalt Concrete Pavements

The importance of proper compaction of asphalt pavements has been recognized for many years. Investigators have shown that pavement sta­ bility, durability, tensile strength, fatigue resistance, stiffness, and flexibility are controlled to a certain degree by the density of asphalt concrete.

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Comprehensive Evaluation of Compaction of Asphalt ...

Jan 01, 2012  Currently, no acceptable method relates asphalt pavement density to the compaction pattern. The compaction pattern required to achieve the desired density is established on the basis of experience and trial and error, a process that is time-consuming and expensive.

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Vogele Paver Achieves Perfect Evenness and Maximum Compaction

Feb 20, 2012  February 20, 2012 The paver was fitted with a Big MultiPlex Ski for grade and slope control. A SUPER 2100-2 replaced the asphalt pavement of the

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Curtailing oxidation with warm mix asphalt

Jun 05, 2021  New Brunswick Department of Transportation and Infrastructure (NBDTI) recently compared core compaction results for HMA and chemically modified WMA projects completed between 2017 and 2019 with PG 58-28 and PG 58-34 asphalt binders. The core compaction results for the HMA projects ranged from 92.5 to 93.0 percent and the WMA project ranged from ...

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(PDF) Air-Void Distribution Analysis of Asphalt Mixture ...

Air void distribution within an asphalt mixture specimen is related to several factors, such as compaction effort, method of compaction (equipment), and aggregate gradation.

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ALASKA

Alaska Department of Transportation and Public Facilities P.O. Box 112500 Juneau, AK 99811-2500

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Publications — Materials and Pavements

February 2012: Statewide Implementation of Pave-IR in the Texas Department of Transportation: 5-4577-05-1: S.D. Sebesta, T. ScullionFebruary 2012: Full Depth Reclamation: Workshop Materials: 0-6271-P2: T. Scullion, S.D. SebestaFebruary 2012: The Overlay Tester: A Sensitivity Study to Improve Repeatability and Minimize Variability in the Test ...

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What s In a Name? - The National Academies Press

71 Table 8 Density Gradient in Specimen Compacted on Prototype Gyratory Compactor (14) 4.5.5.5 Field Compaction of Superpave Mixes Early in Superpave implementation there were some issues with achieving density, especially in areas where the Marshall mixes had been easy to compact.

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Route 2/I-95 Bridge Project: Intelligent Innovation ...

May 29, 2015  Compaction of surface and subsurface materials is an important step in roadway paving and IC is used in the final phase. IC uses a road roller (or roller-compactor) to compress the soil, gravel, or asphalt to create a dense, uniform pavement. Achieving a uniform density is key to long-lasting, high quality roadways.

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Peer Reviewed Journal - IJERA

IJERA : Volume 4 Issue 6 (Version 5), June 2014. 1. Abstract: The experiment works was dividing into two phases, for phase one was developed to investigate the properties of aggregates and straight asphalt qualities. The experiment work for phase two was developed to design the porous asphalt mix.

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Hawkeye 1000 DUO Released World Highways

Feb 09, 2012  ARRB Group has introduced the latest addition to the Hawkeye 1000 series, the Hawkeye 1000 DUO. The Hawkeye 1000 portable range was previously limited to a standalone laser profiler and a separate video imaging system. With recent advancements in computer hardware and an intense in-house development programme, ARRB Systems is now releasing the Hawkeye 1000 DUO which

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Civil Engineering - Technical References

Civil Engineering - Technical References. Major environmental and Construction challenges faced in the upgrading of Main Road between St James and Kalk Bay, Cape Town (643 KB) This article presents a general view of the construction challenges during the upgrading of Main Road between St James and Kalk Bay, Cape Town.

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AASHTO T 343-12 (2020) - Techstreet

AASHTO T 343-12 (2020) covers the in-place determination of the total density and relative compaction of HMA pavements by measuring changes in the electromagnetic field resulting from the compaction process. The equipment referenced in this method is a surface contact device that is relatively unaffected by the surface moisture and surface ...

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Collection of Building Materials: Introduction of Concrete

The compaction factor is defined as the ratio of the weight of partially compact concrete with the weight of fully compact concrete. For the normal range of concrete the compacting factor lies between 0.8 - 0.92 .The sensitivity of the compaction factor is reduced outside the normal range of workability and is generally unsatisfactory for ...

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Ahmed G. Hamed - University of Saskatchewan - LinkedIn

- Conducted soil dry density and moisture rate testing using a Troxler 3430 nuclear density gauge to ensure proper compaction in accordance with contract specifications of the site. - Performed compaction testing of asphalt to ensure it met Ontario provincial standard

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Manuals - dot.ny.gov

July 2012. Field Compaction Data Sheet Nuclear Direct Transmission. SM 469 : 1. January 2011. Blasting Report. SM 384a : 2. July 2015. Compaction Control Data Sheet : 1. April 1974: Compaction Control Data Sheet : 1 : Compaction Control Tables (Tables I II) 1. December 2015. Disturbed (Jar) Soil Sample Request. SM 454 : 1 : Granular Materials ...

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Vogele Paver Achieves Perfect Evenness and Maximum Compaction

Feb 20, 2012  February 20, 2012 The paver was fitted with a Big MultiPlex Ski for grade and slope control. A SUPER 2100-2 replaced the asphalt pavement of the

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California Test Methods Version Selection Caltrans

CT 375 February 1, 2012 (PDF) Determining the In-Place Density and Relative Compaction of Hot Mix Asphalt Pavement Using Nuclear Gages: Guadalupe Magana (916) 227-7302 [email protected] : CT 375 May 1, 2004 (PDF) Determining the In-Place Density and Relative Compaction of AC Pavement: CT 375 January 1, 2003 (PDF) CT 375 March 1, 1998 ...

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Engineering Calculations DEMOLITION DEBRIS WASTE

Task: Engineering Evaluation Cost Analysis Date: February 22, 2012 Problem Statement: Demolition Debris Waste Source Volume Calculations Checked By: Rob Ederer, P.E. Date: February 23, 2012 Page 1 of 15 SECTION 1.0 PROBLEM STATEMENT

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HMA PRODUCTION MANUAL - Michigan

This manual is the combination of three separate Hot Mix Asphalt (HMA) manuals used in the design, production, and testing of HMA for the Michigan Department of Transportation (MDOT) projects and a Laboratory and Technician Qualification program.

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(PDF) Air-Void Distribution Analysis of Asphalt Mixture ...

Air void distribution within an asphalt mixture specimen is related to several factors, such as compaction effort, method of compaction (equipment), and aggregate gradation.

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(PDF) Representative volume element of asphalt pavement ...

The assurance of asphalt pavement layer compaction, expressed by ratio between field and laboratory bulk density and air voids content, is one of the main criteria of the durability of asphalt ...

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by - virginiadot

density. 4. A sample of plant mix was taken, 50-blow Marshall specimens were made in the lab, and the density and voids were computed. As a rule of thumb, the achievable pavement density is 95% of the Marshall density. A survey of compaction practices revealed that 14 states require a minimum pavement density of 95% of the laboratory Marshall ...

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compactor vibratory road roller asphalt pavement

Chapter 10 employed the asphalt vibratory compactor to simulate the IC compaction of asphalt mixture in the field. 7. Chapter 11 performed a benefit-cost analysis to systematically evaluate the economic benefits of IC. Two specific cycle costs were developed based on costs for construction of a pavement and savings from improved compaction ...

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PAVING NEWS: Cashman Equipment Offers New Cat CB54, CB54 ...

May 07, 2009  Meeting density and smoothness specifications can often be challenging. Caterpillar designs asphalt compactors that simplify operation, yet provide versatility to perform in all types of applications. Having the right equipment and understanding its capability helps contractors meet the difficult performance requirements that are associated with today’s paving contracts. Cat asphalt ...

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Plate Compactor Green Tractor Talk

Oct 19, 2020  Only show this user. After a lot of on line research, I bought a plate compactor. Price point was right for me at $545. My usage will occasional around the horse farm for stall floors, and part of maintaining about 500 feet of gravel driveway. The gravel is what is called here “equestrian blend.”. It is a mix of stone dust and pea size ...

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Mixture formulations - db0nus869y26v.cloudfront

The usage of these additives in hot mixed asphalt (above) may afford easier compaction and allow cold weather paving or longer hauls. Use of warm mix is rapidly expanding. A survey of US asphalt producers found that nearly 25% of asphalt produced in 2012 was warm mix, a 416% increase since 2009.

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MDOT - Manuals Guides - Michigan

Aggregate Source Inventory Database Bituminous Mix Design Nomograph Guide. Capital Preventive Maintenance Manual. Construction Manual. Density Testing and Inspection Manual (5 MB) HMA Production Manual. Manual for the Michigan Test Methods (MTM) Materials Quality Assurance Procedures (MQAP) Materials Source Guide.

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The Asphalt Forum

Sep 11, 2012  At the 56th annual meeting of the National Asphalt Pavement Association (NAPA) in Orlando in early February, presenters showed ads from a $1 to $2 million campaign the concrete industry launched against the asphalt industry last year. It’s frustrating to see an ad in which someone claims asphalt pavements fail in a certain number of years.

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Publications — Materials and Pavements

April 2012: Use of Fine Graded Mixes for Pavement Preservation: Workshop Materials: 0-6615-P2: T. Scullion, C.K. Estakhri, B.T. WilsonDecember 2012: Laboratory and Field Performance Measurements to Support the Implementation of Warm Mix Asphalt in Texas: 5-5597-01-1: C.K. EstakhriJuly 2012

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