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From page 84... ... 84 A T T A C H M E N T 2 This attachment describes four proposed test methods for determining the asphalt emulsion and binder residue properties that are related to surface treatment performance. • Proposed Standard Method of Test for Determining Storage Stability of Emulsified Asphalts: Resistance to Physical Separation and Change in Rheological Properties • Proposed Standard Method of Test for Determining the Viscosity of Spray Grade Emulsified Asphalts Using the Three-Step Shear Test • Proposed Standard Method of Test for Determining Dynamic Shear Modulus of Emulsion Residues at Critical Phase Angle Values Using the Dynamic Shear Rheometer (DSR) Read the entire page →
From page 85... ... Proposed Test Methods 85 Proposed Standard Method of Test for Determining Storage Stability of Emulsified Asphalts: Resistance to Physical Separation and Change in Rheological Properties AASHTO Designation: TP-XX 1. SCOPE 1.1 This test method covers the procedure for evaluating the ability of emulsified asphalt to remain homogenous and resist physical separation and or change in rheological properties during storage. Read the entire page →
From page 86... ... 86 Performance-Related Specifications for Emulsified Asphaltic Binders Used in Preservation Surface Treatments 3. TERMINOLOGY 3.1 Definitions 3.1.1 Viscosity: apparent viscosity, η -- the ratio of shear stress to shear rate for a Newtonian or non-Newtonian liquid. Read the entire page →
From page 87... ... Proposed Test Methods 87 5. SIGNIFICANCE AND USE 5.1 This test method is useful for determining, in a comparatively short time, the storage stability of emulsified asphalt. Read the entire page →
From page 88... ... 88 Performance-Related Specifications for Emulsified Asphaltic Binders Used in Preservation Surface Treatments 6.3.3 Temperature: Controlled thermal chamber heater for maintaining the sample of asphalt at the test temperature. 6.3.4 Sample Chambers: Disposable sample chambers. Read the entire page →
From page 89... ... Proposed Test Methods 89 11. TESTING PROCEDURE 11.1 Test Procedure for Physical Stability 11.1.1 Bring the emulsified asphalt to the anticipated storage temperature. Read the entire page →
From page 90... ... 90 Performance-Related Specifications for Emulsified Asphaltic Binders Used in Preservation Surface Treatments 11.2.2 Allow the instrument electronics to warm up for at least five minutes before conducting any calibrations or analyses. 11.2.3 Set the temperature controller to the desired test temperature, taking into account any offset determined under Section 9. Read the entire page →
From page 91... ... Proposed Test Methods 91 (Pa·s) Read the entire page →
From page 92... ... 92 Performance-Related Specifications for Emulsified Asphaltic Binders Used in Preservation Surface Treatments 13.1.3 Viscosity test temperature to the nearest °C 13.1.4 Rotational viscometer: Apparatus-measuring geometry type and size 13.2 Test Results 13.2.1 Torque in mNm or percent of instrument capacity and speed in sec-1 or r/min 13.2.2 Viscosity results in pascal seconds (Pa·s) , millipascal seconds (mPa·s) Read the entire page →
From page 93... ... Proposed Test Methods 93 Proposed Standard Method of Test for Determining the Viscosity of Spray Grade Emulsified Asphalts Using the Three-Step Shear Test AASHTO Designation: TP-XX 1. SCOPE 1.1 This test method uses a rotational viscometer and a temperature-controlled thermal chamber to measure the viscosity of emulsified asphalt. Read the entire page →
From page 94... ... 94 Performance-Related Specifications for Emulsified Asphaltic Binders Used in Preservation Surface Treatments 3. TERMINOLOGY 3.1 Definitions 3.1.1 Viscosity: apparent viscosity, η -- the ratio of shear stress to shear rate for a Newtonian or non-Newtonian liquid. Read the entire page →
From page 95... ... Proposed Test Methods 95 6.3 The container should be vented to relieve pressure. After the sample reaches the specified temperature, stir the sample to achieve homogeneity. Read the entire page →
From page 96... ... 96 Performance-Related Specifications for Emulsified Asphaltic Binders Used in Preservation Surface Treatments 10. CALIBRATION OF THE ROTATIONAL VISCOMETER 10.1 The rotational viscometer shall be calibrated in accordance with ASTM D4402M-13. Read the entire page →
From page 97... ... Proposed Test Methods 97 Figure 11.1. Typical results from the 3-step shear test using the rotational viscometer. Read the entire page →
From page 98... ... 98 Performance-Related Specifications for Emulsified Asphaltic Binders Used in Preservation Surface Treatments 13.1.1 Emulsified asphalt type name 13.1.2 Viscosity test temperature to the nearest °C 13.1.3 Rotational viscometer: Rotating spindle type and size 13.2 Test Results 13.2.1 Torque in mNm or percent of instrument capacity and speed in sec-1 or r/min 13.2.2 Viscosity results in pascal seconds (Pa·s) , millipascal seconds (mPa·s) Read the entire page →
From page 99... ... Proposed Test Methods 99 Proposed Standard Method of Test for Determining Dynamic Shear Modulus of Emulsion Residues at Critical Phase Angle Values Using the Dynamic Shear Rheometer (DSR) AASHTO Designation: TP-XX 1. Read the entire page →
From page 100... ... 100 Performance-Related Specifications for Emulsified Asphaltic Binders Used in Preservation Surface Treatments 3.1.3 Phase angle ( ) – The phase difference in radians or degrees between applied strain and resultant stress in strain controlled test or the phase difference in radian or degree between applied stress and resultant strain in stress controlled test. Read the entire page →
From page 101... ... Proposed Test Methods 101 6. APPARATUS 6.1 The DSR, environmental chamber control, and data acquisition system shall meet the requirements of T 315. Read the entire page →
From page 102... ... 102 Performance-Related Specifications for Emulsified Asphaltic Binders Used in Preservation Surface Treatments 5°C. Specimens should be conditioned for 15 minutes at the test temperature prior to frequency sweep loading. Read the entire page →
From page 103... ... Proposed Test Methods 103 G ( ) Read the entire page →
From page 104... ... 104 Performance-Related Specifications for Emulsified Asphaltic Binders Used in Preservation Surface Treatments n ) Read the entire page →
From page 105... ... Proposed Test Methods 105 the corresponding G* is determined by applying the calculated wR value into Equation 12.4. Read the entire page →
From page 106... ... 106 Performance-Related Specifications for Emulsified Asphaltic Binders Used in Preservation Surface Treatments Proposed Modifications to ASTM D 3121, Standard Test Method for Tack of Pressure-Sensitive Adhesives by Rolling Ball Specifications Clause 6 – Add Subsection 6.2 stating: Sample Molds - A 320 mm long by 50 mm wide horizontal, flat steel plate (or steel tray) with four interconnected vertical retaining walls that form a watertight connection to the steel plate and extend vertically in a direction perpendicular to the steel plate should be used to confine the emulsion sample within the defined testing area. Read the entire page →
From page 107... ... Abbreviations and acronyms used without definitions in TRB publications: A4A Airlines for America AAAE American Association of Airport Executives AASHO American Association of State Highway Officials AASHTO American Association of State Highway and Transportation Officials ACI–NA Airports Council International–North America ACRP Airport Cooperative Research Program ADA Americans with Disabilities Act APTA American Public Transportation Association ASCE American Society of Civil Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials ATA American Trucking Associations CTAA Community Transportation Association of America CTBSSP Commercial Truck and Bus Safety Synthesis Program DHS Department of Homeland Security DOE Department of Energy EPA Environmental Protection Agency FAA Federal Aviation Administration FAST Fixing America's Surface Transportation Act (2015) FHWA Federal Highway Administration FMCSA Federal Motor Carrier Safety Administration FRA Federal Railroad Administration FTA Federal Transit Administration HMCRP Hazardous Materials Cooperative Research Program IEEE Institute of Electrical and Electronics Engineers ISTEA Intermodal Surface Transportation Efficiency Act of 1991 ITE Institute of Transportation Engineers MAP-21 Moving Ahead for Progress in the 21st Century Act (2012) Read the entire page →
From page 108... ... TRA N SPO RTATIO N RESEA RCH BO A RD 500 Fifth Street, N W W ashington, D C 20001 A D D RESS SERV ICE REQ U ESTED N O N -PR O FIT O R G . Read the entire page →

From page 84...

... 84 A T T A C H M E N T 2 This attachment describes four proposed test methods for determining the asphalt emulsion and binder residue properties that are related to surface treatment performance. • Proposed Standard Method of Test for Determining Storage Stability of Emulsified Asphalts: Resistance to Physical Separation and Change in Rheological Properties • Proposed Standard Method of Test for Determining the Viscosity of Spray Grade Emulsified Asphalts Using the Three-Step Shear Test • Proposed Standard Method of Test for Determining Dynamic Shear Modulus of Emulsion Residues at Critical Phase Angle Values Using the Dynamic Shear Rheometer (DSR)