CALL US

+86 17838360708

utilizing lab tests to predict asphalt concrete overlay

utilizing lab tests to predict asphalt concrete overlay

Utilizing Lab Tests to Predict Asphalt Concrete Overlay ...

The study of these projects prior to construction, during construction, and for a short monitoring period after construction is intended to determine the impact of various pre-existing pavement conditions, pavement cross-section, mix design, and material properties on the ultimate performance of the asphalt concrete (AC) overlay.

get price

UTILIZING LAB TESTS TO PREDICT ASPHALT CONCRETE

Oct 01, 2014  UTILIZING LAB TESTS TO PREDICT ASPHALT CONCRETE OVERLAY PERFORMANCE. Prepared By . Imad L. Al-Qadi, David L. Lippert, Shenghua Wu, Hasan Ozer, Greg Renshaw, Izak M. Said, Arturo F. Espinoza Luque , and Fazal R. Safi . University of Illinois at Urbana -Champaign Timothy R. Murphy . Murphy Pavement Technology, Inc. Abbas Butt and Satish

get price

About this site

DOI: 10.36501/0197-9191/17-026 Corpus ID: 891310. Utilizing Lab Tests to Predict Asphalt Concrete Overlay Performance @inproceedings{AlQadi2017UtilizingLT, title={Utilizing Lab Tests to Predict Asphalt Concrete Overlay Performance}, author={I. Al-Qadi and D. Lippert and Shenghua Wu and H. Ozer and Greg Renshaw and Izak M. Said and A. Luque and Fazal R. Safi and T. R. Murphy and A.

get price

About this site

We are not allowed to display external PDFs yet. You will be redirected to the full text document in the repository in a few seconds, if not click here.click here.

get price

About this site

Dec 01, 2018  Prediction of thin asphalt concrete overlay thickness and density using nonlinear optimization of GPR data. ... and conduct laboratory tests. However, this is destructive, can be time consuming and expensive, and covers limited areas. ... Beaucamp et al. used the Lichtenecker-Rother equation, which is a generalized CRI model, to predict asphalt ...

get price

Laboratory Evaluation of Thin Asphalt Concrete Overlays ...

The overall objective of this study was to assess the use of locally available materials in Nevada for the development of a durable fine-graded thin hot-mix asphalt (HMA) overlay mixture for pavement preservation. Accordingly, a comprehensive laboratory evaluation was conducted. The investigation considered establishing two mix designs using ...

get price

Utilizing Lab Tests To Predict Asphalt Concrete Overlay ...

Utilizing Lab Tests To Predict Asphalt Concrete Overlay Performance . ... mix design, and material properties on the ultimate performance of the asphalt concrete (AC) overlay. This final report is the third report on this research project. Two interim reports that documented project construction and performance to date have been previously ...

get price

Prediction of thin asphalt concrete overlay thickness and ...

Dec 01, 2018  Prediction of thin asphalt concrete overlay thickness and density using nonlinear optimization of GPR data. ... and conduct laboratory tests. However, this is destructive, can be time consuming and expensive, and covers limited areas. ... Beaucamp et al. used the Lichtenecker-Rother equation, which is a generalized CRI model, to predict asphalt ...

get price

Recent ICT/IDOT Report Publications ICT - Illinois

Jan 26, 2018  R27-161: Utilizing Lab Tests to Predict Asphalt Concrete Overlay Performance. A series of five experimental projects and three demonstration projects were constructed to better understand the performance of pavement overlays using various levels of asphalt binder replacement (ABR) from reclaimed asphalt pavement (RAP), recycled asphalt shingles ...

get price

Overlay Tester Results from Dense-Graded Asphalt

concern in reliably predicting and screening the cracking potential of the AC mixes. Germann and Lytton introduced the OT test to predict the reflec-tive cracking resistance of asphalt overlays (7 ...

get price

Road and Laboratory Tests on Hot-Mix Asphaltic Concrete

ROAD AND LABORATORY TESTS ON HOT-MIX ASPHALTIC CONCRETE by R. A. Jimenez Associate Research Engineer and Bob M. Gallaway Research Engineer Research Report Number 3 .,.3 (Final) Road (and Laboratory) Tests on Hot-Mix Asphaltic Concrete Research Project Number 3-8-57-3 Sponsored by The Texas Highway Department In Cooperation with the

get price

Developer(s) Illinois Flexibility Index Test (I-FIT)

Utilizing Lab Tests to Predict Asphalt Concrete Overlay Performance. FHWA-ICT-17-020, Urbana, IL: FHWA-ICT-17-020, Urbana, IL: Illinois Center for Transportation, 2017.

get price

ASPHALT TESTING: Testing in progress Roads Bridges

Mar 20, 2012  The current asphalt material specifications do not put due emphasis that is needed for mechanical testing of asphalt concrete. There have been considerable amounts of research efforts undertaken to develop so-called asphalt performance tests that can link laboratory-measured parameters to actual pavement performance.

get price

Interpreting Falling Weight Deflectometer (FWD) Data (for ...

Apr 16, 2018  when designing bonded concrete overlays.): 6-in diameter cores • DCP testing may be performed in the core holes to establish the stiffness of the granular layers beneath the slab. This information is useful for determining if the time of day that mid-slab testing is performed needs to be restricted, as described in Appendix C-2.

get price

‪Izak M. Said‬ - ‪Google Scholar‬

Utilizing lab tests to predict asphalt concrete overlay performance IL Al-Qadi, DL Lippert, S Wu, H Ozer, G Renshaw, TR Murphy, A Butt, ... FHWA-ICT-17-020 , 2017

get price

"A Cracking Methodology to Assess Fracture and Fatigue ...

Jan 01, 2016  Several highway agencies have either implemented or considered implementing performance tests to predict the cracking potential of asphalt concrete (AC) mixtures in the laboratory setting. One such test, the Overlay Tester (OT) test, measures the number of cycles to failure of the AC specimens by simulating the opening and closing of the cracks induced by daily temperature

get price

Rapporti di organizzazioni: "Pavements, Asphalt concrete ...

Thin asphalt overlays are one of many preventative maintenance treatments. Thin asphalt overlays are placed directly on existing pavement and can range from 1/2 inch to 1 1/2 inches in thickness. Thin asphalt overlays have proven to be an economical means for maintaining and improving the functional condition of an existing pavement since the ...

get price

NRRA LT1: Developing Best Practices for Rehabilitation of ...

Asphalt overlays are a relatively simple and cost effective maintenance solution for the extension of a composite pavement design life. However, the extension of the design life is dependent on the performance of the asphalt overlays. Reflective cracking is one of the most common distresses observed in asphalt concrete overlays

get price

Utilizing Lab Tests To Predict Asphalt Concrete Overlay ...

Utilizing Lab Tests To Predict Asphalt Concrete Overlay Performance . ... mix design, and material properties on the ultimate performance of the asphalt concrete (AC) overlay. This final report is the third report on this research project. Two interim reports that documented project construction and performance to date have been previously ...

get price

Laboratory Testing of Fabric lnterlayers for Asphalt ...

Laboratory test methods can be used to predict the relative in-service performance of fabric inter­ layers in asphalt concrete (AC) pavement overlays as well as the amount of asphalt tack coat to be used with each fabric type. To' better understand the need and use of these test methods, the following

get price

Improved overlay tester for fatigue cracking resistance of ...

Premature cracking of the asphalt concrete (AC) layer in flexible pavement is one of the major concerns of the pavement community. ... Several highway agencies have either implemented or considered implementing performance tests to predict the cracking potential of AC mixes in the laboratory setting. One such test, the Overlay Tester (OT) test ...

get price

Laboratory testing suite for characterization of asphalt ...

Laboratory testing suite for characterization of asphalt concrete mixtures obtained from field cores Michael P. Wagoner, William G. Buttlar, Glaucio H. Paulino, Philip Blankenship, Reynaldo Roque, Wu Rongzong, Adriaan De Bondt, Andre Molenaar, Tom Scarpas,

get price

Overlay Tester Results from Dense-Graded Asphalt

concern in reliably predicting and screening the cracking potential of the AC mixes. Germann and Lytton introduced the OT test to predict the reflec-tive cracking resistance of asphalt overlays (7 ...

get price

Interpreting Falling Weight Deflectometer (FWD) Data (for ...

Apr 16, 2018  when designing bonded concrete overlays.): 6-in diameter cores • DCP testing may be performed in the core holes to establish the stiffness of the granular layers beneath the slab. This information is useful for determining if the time of day that mid-slab testing is performed needs to be restricted, as described in Appendix C-2.

get price

Thickness of Asphalt Concrete - everlays

the soaked conditions of the laboratory test. Thus, the overlay thickness should be determined by using the CBR curve equivalent to the weakest subgrade modulus ob­ tained during in-place testing. The proper design thickness for an overlay depends on the condition of the existing pavement. The existing

get price

A Cracking Methodology to Assess Fracture and Fatigue ...

performance tests to predict the cracking potential of asphalt concrete (AC) mixtures in the laboratory setting. One such test, the Overlay Tester (OT) test, measures the number of cycles to failure of the AC specimens by simulating the opening and closing of the cracks induced by daily

get price

Predicting Field Performance of Skid Resistance of Asphalt ...

Predicting Field Performance of Skid Resistance of Asphalt Concrete Pavement Hui Wang1, Robert Y. Liang2, F, ASCE 1 Research Assistant, Department of Civil Engineering, University of Akron, Akron, OH 44325-3905; Email: [email protected] ... lab test results using an accelerated polishing machine. Based on the trend of friction degradation ...

get price

Reflective and thermal cracking modeling of asphalt ...

Laboratory tests for cores from various layers were conducted at 0, 10, and 20°C. Table 1 shows the fracture (separation) properties for the same asphalt materials at 10°C.

get price

Prediction of pavement fatigue cracking at an accelerated ...

Asphalt concrete performance tests are the essential components of performance-related and performance-based specifications, for which they can be used either for screening AC to minimise deterioration risks or to directly predict specific modes of pavement deterioration.

get price

Fatigue Performance of Geosynthetic-Reinforced Asphalt ...

Aug 08, 2020  This paper developed a test procedure to conduct four-point beam (4PB) fatigue tests, adapted a permanent deformation evolution model (PDEM) to predict the fatigue life of the 4PB specimens under laboratory testing conditions, and compared the fatigue life of beam specimens reinforced with three types of geosynthetics at 10°C, 20°C, and 30°C.

get price

Design of Overlay for Flexible Pavement

Asphalt Institute Conversion Factors Subgrade 0.0 Granular sub-base, reasonably well graded, 0.1 – 0.2 hard aggregates with some plastic fines and CBR not less than 20%. Use upper part of range if PI is less than 6; lower part of range if PI is more than 6 Asphalt concrete surfaces and

get price

Fiber-Reinforced Concrete for Pavement Overlays Tech Brief

Typical fiber content for concrete overlays can range from 0.2% to 0.5% by volume, and the amount depends on many technical factors (e.g., slab flexural capacity, desired service life, crack width criteria, and joint load transfer efficiency) and costs. For bonded concrete overlays of asphalt, a minimum residual flexural strength (f 150) of 100

get price