The new specification will require that the PG grades 64-28, 70- 28, 76-28 and 70-22 meet a minimum of 60% ER in addition to the standard AASHTO M 320 binder specification requirements.
binder grading system referred to as "superpave PG-grading system' " The PG- grading system uses a distinct process to predict the performance characteristics of both neat and modified asphalt binders.
The continuous grading temperatures and continuous grade may be used for forensic or research studies and when producing, blending, modifying, or otherwise evaluating asphalt binders. This guide is applicable to Specification D6373, …
An example of a PG Asphalt Binder is PG 64-28. The first two numbers (64) indicate that the binder meets high temperature physical properties up to 64 degrees Celsius. The last two numbers (-28) indicate the binder meets low temperature physical properties down to -28 degrees Celsius.
Performance Grading of Bitumen. Outline • Background on Transport ... Performance Grading of Asphalt Binder- The Superpave System • Workability at Construction Temperatures • Rotational Viscometer (RV) – η at 135 C - unaged ... Increase PG grade by 6 degrees; e.g. PG 64-22 to PG 70-22 . Effect of Traffic Speed and
This specification covers asphalt binders graded by performance. Grading designations are related to the average seven-day maximum pavement design temperature, and minimum pavement design temperature. Asphalt binder shall be prepared by the refining of crude petroleum by suitable methods, with or ...
A mixture of asphalt binder and graded mineral aggregate, mixed at ... PG 76-22 NJ Standard Grade Slow - Bump one grade Stopped - Bump two grades. Grading System for Asphalt Binders. Compaction level is a function of traffic and depth of layer. ... Hot Mix Asphalts 101 ...
The recommended selection criteria for the asphalt binder using the new PG Superpove grading system ore based on high and low pavement design temperatures and on traffic levels. Information contained in this
PG Asphalt Binder Selection: PG ASPHALT BINDER SUGGESTED USE PG 58-28 low volume roadways PG 64-22 most commonly used PG grade, for low, moderate and high volume roadways 3. Gyratory Compaction Level Superpave mixes are designed in the laboratory using a Gyratory compactor. A 75 Gyration design is required unless …
MSCR into the binder specification and implement plus grades of PG asphalt binder, in light of very small cost increase (less than 5%) and significant performance improvements (over 20% life extension) in plus-grade asphalt
The asphalt binder grades now used with MSCR are PG 58x -28 and PG 58x - 34. With MSCR grading the bumping is done through the …
Simulates aging of asphalt cement over years due to oxidation. CIVL 3137 96 Dynamic Shear Rheometer ... Superpave Grading PG 46 PG 52 PG 58 PG 64 PG 70 PG 76 PG 82 High Grades ... Superpave Binder Grades $570.50 $662.50 $717.50 Cost per ton based on TDOT reimbursement rates for October 2012.
PAVING GRADE ASPHALT, PG64-22 Description: PG64-22 is a Performance Grade (PG) of asphalt cement based on two factors: traffic and pavement temperature. Adjustments are made to the PG grade of asphalt cement based on traffic conditions and traffic volumes which is intended to enhance the design life of the ... PG64-22 as the binder …
The asphalt binder is grade based on its performance char- ... compliance of PG binders is determined . from the Bending Beam Rheometer (BBR) and the Direct Tension Tester (DTT) testing. ... od, the Asphalt Binder Cracking Device is under development by EZ Asphalt Technol-ogy. EZ Asphalt Technology was founded
1 . Final Report . September 2016 . Relating Dynamic Shear Modulus (G*) of Performance Grade (PG) Asphalt Binders to Nanoindentation Stiffness (E)SOLARIS Consortium, Tier 1 University Transportation Center
Typical PG Grades and Their Application: Two grades (PG 58-28S and PG 58-34S) are is the common conventional binders binder used in Iowa. A PG 58-28S asphalt binder will cover the climate range for a
both PG 64-22 and PG 64-28 asphalt binders. Field tests and performance observations along with laboratory analysis and tests were used to determine the feasibility of increasing the cold temperature PG
History of Asphalt Grading Systems 2 • Chewing - first mode of testing to determine asphalt hardness • Initially used for natural asphalts such as Trinidad Lake asphalt • Trinidad asphalt contains colloidal clay of volcanic origin • Solubility in carbon disulfide used to determine the purity • First sheet asphalt pavement using Trinidad asphalt - …
In January 2006, the California Department of Transportation (Caltrans) and the rest of California started to use the Superpave Performance Grade (PG) system for specifying neat asphalt binders.
PG Asphalt Binder Laboratory Technician Re-Certification Quality Assurance Technologist Re-Certification Soils and Aggregate Inspector Re-Certification
the asphalt binder producers were geared toward supplying three or four grades of asphalt binder. Dramatically increasing the number of specified grades would require asphalt binder producers to increase their storage and production capacities or ship binders long distances.
Asphalt Binder Specification Tests PG Verification (AASHTO M320) This series of tests will provide confirmation of performance grade for submittal to state agencies or for in-house quality checks.
Asphalt Binder Basics Specifications, History and Future. Asphalt Binder ... Superpave Asphalt Binder Specification Grading System Based on Climate 14 PG 58-22 Performance Grade Average 7-day max pavement ... Does PG Grading Predict Performance? Study of the two mixes with the same aggregate
The grade of the asphalt binder contributes to the resistance to rutting (or permanent deformation) of a pavement at high temperature, the thermal cracking characteristics at low temperature, and fatigue resistance at intermediate temperatures.
PG Grading is the current asphalt binder grade designation replacing "penetration" and "viscosity" grading. PG is short for Performance Graded and is based on the performance of a bituminous material at specific temperature and aging conditions.
asphalt binder PG grade. Effect of Traffic Amount ... Traffic speed Amount of traffic -measured in ESALs PG grade Asphalt content of . mix - durabilitydurability. The higher the Grade, the stiffer the binder. The more rut resistance. PG 82. PG 76 PG 70 PG 64. PG 58. Rule # 1. The lower the number, the more resistant to thermal cracking.
binder, the binder grade at RAP contents of 21% to 30% was no longer required to change from PG 64-22 to PG 64-28. Prior to this, both types of surface mixtures were allowed to contain only up to 20% RAP before binder grade adjustments were
PG Binder Selection ... Superpave Asphalt Binder Spec ... Pavement Temperature, C - 20 20 60 135. PG Binders • Grading System Based on Climate PG 52-40 Performance Grade Average 7-day max pavement design temp Min pavement design temp. Selecting PG Binders 9Selection Based on Climate
Development in Asphalt Binder Specifications. TRANSPORTATION RESEARCH BOARD 2010 EXECUTIVE COMMITTEE OFFICERS ... polymer-modified asphalt binders has grown tremendously in North America due to the ... development of a PG binder test that is both performance-based and blind to modification type.
MSDS No. A-03-003 Revision Date: 3-24-14 P a g e | 1 Asphalt Cement- All Grades Safety Data Sheet Axeon Specialty Products 400 Grove Road MSDS No.
904.02 performance graded asphalt binders. M332 Table 1, for mixes containing all materials, recycled asphalt pavement materials, or roofing shingles from manufacturing waste. The Office of Materials Technology's (OMT) Asphalt Technology Division (ATD) will approve all PG binders.
Information on how to select a PG asphalt binder for a specific condition is contained in Superpave mix design method. Table below shows how the Superpave PG system addresses specific penetration, AC and AR grading system general limitations.