1、Standard Specification for Performance-Graded Hot-Poured Asphalt Crack Sealant AASHTO Designation: MP 25-181Technical Section: 4e, Joints, Bearings, and Geosynthetics Release: Group 2 (June) American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 249 W
2、ashington, D.C. 20001 TS-4e MP 25-1 AASHTO Standard Specification for Performance-Graded Hot-Poured Asphalt Crack Sealant AASHTO Designation: MP 25-181Technical Section: 4e, Joints, Bearings, and Geosynthetics Release: Group 2 (June) 1. SCOPE 1.1. This specification covers hot-poured asphalt crack s
3、ealant graded by performance. Upon grading for performance, the hot-poured asphalt crack sealant will be assigned a sealant grade (SG) designation (e.g., SG 52-16). Grading designations are related to the average 7-day maximum pavement design temperature and the minimum pavement design temperature s
4、hown in Table 1. 2. REFERENCED DOCUMENTS 2.1. AASHTO Standards: M 323, Superpave Volumetric Mix Design R 35, Superpave Volumetric Design for Asphalt Mixtures R 66, Sampling Asphalt Materials T 366, Apparent Viscosity of Hot-Poured Asphalt Crack Sealant Using Rotational Viscometer T 367, Accelerated
5、Aging of Hot-Poured Asphalt Crack Sealant Using a Vacuum Oven T 368, Measuring Low-Temperature Flexural Creep Stiffness of Hot-Poured Asphalt Crack Sealant by Bending Beam Rheometer (BBR) T 369, Evaluation of the Low-Temperature Tensile Property of Hot-Poured Asphalt Crack Sealant by Direct Tension
6、Test T 370, Measuring Adhesion of Hot-Poured Asphalt Crack Sealant Using Direct Adhesion Tester T 371, Measuring Interfacial Fracture Energy of Hot-Poured Asphalt Crack Sealant Using a Blister Test TP 126, Evaluation of the Tracking Resistance of Hot-Poured Asphalt Crack Sealant by Dynamic Shear Rhe
7、ometer (DSR) 2.2. ASTM Standard: D5167, Standard Practice for Melting of Hot-Applied Joint and Crack Sealant and Filler for Evaluation 2018 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law.TS-4e MP 25-2 AASHT
8、O 3. TERMINOLOGY 3.1. Definition: 3.1.1. hot-poured asphalt crack sealantpolymer or rubber modified asphalt material most often formulated with mineral filler, used in pavement cracks and joints. Note 1Based on the references, hot-poured asphalt crack sealant is typically applied at a temperature of
9、 160C or above. 4. ORDERING INFORMATION 4.1. When ordering under this specification, include in the purchase order the sealant grade (SG) designation of the hot-poured asphalt crack sealant required (e.g., (1) MP 25, SG 52-16, or (2) MP 25, SG 64-34). 5. MATERIALS AND MANUFACTURE 5.1. Asphalt binder
10、 of the hot-poured asphalt crack sealant shall be prepared by the refining of crude petroleum by suitable methods, with or without the addition of modifiers. 5.2. Modifiers may be any organic material of suitable manufacture that is used in virgin or recycled condition and that is dissolved, dispers
11、ed, or reacted in asphalt binder to enhance its performance. 5.3. The asphalt binder shall be homogeneous, free from water and deleterious materials, and shall not foam when heated to 175C. 5.4. The grade of hot-poured asphalt crack sealant shall conform to the requirements given in Table 1. 2018 by
12、 the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law.TS-4e MP 25-3 AASHTO Table 1Minimum Pavement Design Temperatures Crack Sealant Performance Grade SG 46 SG 52 SG 58 46 40 34 28 22 16 10 46 40 34 28 22 16 10 46 4
13、0 34 28 22 16 10 Average 7-day max pavement design temperature, C 46 40 34 28 22 16 10 46 40 34 28 22 16 10 46 40 34 28 22 16 10 Original Hot-Poured Asphalt Crack Sealant Apparent Viscosity, T 366 max 3.5 Pas min 1.0 Pas test temp, C Manufacturer Recommended Installation Temperature Dynamic Shear (M
14、SCR), TP 126 flow coeff., min 4.0 kPas shear thinning, min 0.7 test temp, C 46 52 58 Vacuum Oven Residue (T 367) Crack Sealant BBR, T 368 stiffness (S) at 240 s, max 15 MPa stiffness (S) at 1 s, min 40 MPa avg. creep rate, min 0.31 test temp, C 40 34 28 22 16 10 4 40 34 28 22 16 10 4 40 34 28 22 16
15、10 4 Clean and Seal Crack Treatment Crack Sealant DTT, T 369 test temp, C 40 34 28 22 16 10 4 40 34 28 22 16 10 4 40 34 28 22 16 10 4 extendibility, min (%) 85 85 70 55 40 25 10 85 85 70 55 40 25 10 85 85 70 55 40 25 10 Rout and Seal Crack Treatment Crack Sealant AT, T 370 test temp, C 40 34 28 22 1
16、6 10 4 40 34 28 22 16 10 4 40 34 28 22 16 10 4 load, min (N) 200 175 150 125 100 75 50 200 175 150 125 100 75 50 200 175 150 125 100 75 50 aPavement temperatures are estimated from air temperatures using an algorithm contained in the LTPP Bind program or may be provided by the specifying agency, or
17、by following the procedures as outlined in M 323 and R 35. Continued on next page. 2018 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law.TS-4e MP 25-4 AASHTO Table 1Minimum Pavement Design Temperatures (Conti
18、nued) Crack Sealant Performance Grade SG 64 SG 70 SG 76 46 40 34 28 22 16 10 46 40 34 28 22 16 10 46 40 34 28 22 16 10 Average 7-day max pavement design temperature, C 46 40 34 28 22 16 10 46 40 34 28 22 16 10 46 40 34 28 22 16 10 Original Hot-Poured Asphalt Crack Sealant Apparent Viscosity, T 366 m
19、ax 3.5 Pas min 1.0 Pas test temp, C Manufacturer Recommended Installation Temperature Dynamic Shear (MSCR), TP 126 flow coeff., min 4.0 kPas shear thinning, min 0.7 test temp, C 64 70 76 Vacuum Oven Residue (T 367) Crack Sealant BBR, T 368 stiffness (S) at 240 s, max 15 MPa stiffness (S) at 1 s, min
20、 40 MPa avg. creep rate, min 0.31 test temp, C 40 34 28 22 16 10 4 40 34 28 22 16 10 4 40 34 28 22 16 10 4 Clean and Seal Crack Treatment Crack Sealant DTT, T 369 test temp, C 40 34 28 22 16 10 4 40 34 28 22 16 10 4 40 34 28 22 16 10 4 extendibility, min (%) 85 85 70 55 40 25 10 85 85 70 55 40 25 10
21、 85 85 70 55 40 25 10 Rout and Seal Crack Treatment Crack Sealant AT, T 370 test temp, C 40 34 28 22 16 10 4 40 34 28 22 16 10 4 40 34 28 22 16 10 4 load, min (N) 200 175 150 125 100 75 50 200 175 150 125 100 75 50 200 175 150 125 100 75 50 aPavement temperatures are estimated from air temperatures
22、using an algorithm contained in the LTPP Bind program or may be provided by the specifying agency, or by following the procedures as outlined in M 323 and R 35. Continued on next page. 2018 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is
23、 a violation of applicable law.TS-4e MP 25-5 AASHTO Table 1Minimum Pavement Design Temperatures (Continued) Crack Sealant Performance Grade SG 82 46 40 34 28 22 16 10 Average 7-day max pavement design temperature, C 46 40 34 28 22 16 10 Original Hot-Poured Asphalt Crack Sealant Apparent Viscosity, T
24、 366 max 3.5 Pas min 1.0 Pas test temp, C Manufacturer Recommended Installation Temperature Dynamic Shear (MSCR), TP 126 flow coeff., min 4.0 kPas shear thinning, min 0.7 test temp, C 82 Vacuum Oven Residue (T 367) Crack Sealant BBR, T 368 stiffness (S) at 240 s, max 15 MPa stiffness (S) at 1 s, min
25、 40 MPa avg. creep rate, min 0.31 test temp, C 40 34 28 22 16 10 4 Clean and Seal Crack Treatment Crack Sealant DTT, T 369 test temp, C 40 34 28 22 16 10 4 extendibility, min (%) 85 85 70 55 40 25 10 Rout and Seal Crack Treatment Crack Sealant AT, T 370 test temp, C 40 34 28 22 16 10 4 load, min (N)
26、 200 175 150 125 100 75 50 aPavement temperatures are estimated from air temperatures using an algorithm contained in the LTPP Bind program or may be provided by the specifying agency, or by following the procedures as outlined in M 323 and R 35. 2018 by the American Association of State Highway and
27、 Transportation Officials. All rights reserved. Duplication is a violation of applicable law.TS-4e MP 25-6 AASHTO 6. SAMPLING 6.1. The hot-poured asphalt crack sealant material shall be sampled in accordance with R 66. 7. TEST METHODS 7.1. The properties outlined in Sections 5.3 and 5.4 shall be det
28、ermined in accordance with T 366, T 367, T 368, T 369, T 370, T 371, TP 126, and ASTM D5167. 8. INSPECTION AND CERTIFICATION 8.1. Inspection and certification of the material shall be agreed on between the purchaser and the seller. Specific requirements shall be made part of the purchase contract. T
29、he seller shall provide material handling and storage procedures to the purchaser for each hot-poured asphalt crack sealant grade certified. 9. REJECTION AND RETESTING 9.1. If the results of any test do not conform to the requirements of this specification, retesting to determine conformity is perfo
30、rmed as indicated in the purchase order or as otherwise agreed on between the purchaser and the seller. 10. KEYWORDS 10.1. Aging; asphalt binder; direct tension; hot-poured asphalt crack sealant; modifier; performance specifications; rheology. 11. REFERENCES 11.1. Al-Qadi, I. L., E. H. Fini, H. D. F
31、igueroa, J. F. Masson, and K. K. McGhee. Adhesion Testing Procedure for Hot-Poured Crack Sealants, Final Report. No. ICT-08-026. Illinois Center for Transportation, Rantoul, IL, December 2008. https:/www.ideals.illinois.edu/bitstream/handle/2142/45986/ICT-08-026.pdf?sequence=2. 11.2. Al-Qadi, I. L.,
32、 E. H. Fini, K. K. McGhee, and M. A. Elseifi. Development of Apparent Viscosity Test for Hot-Poured Crack Sealants, Final Report. No. ICT-08-027. Illinois Center for Transportation, Rantoul, IL, December 2008(b). https:/www.ideals.illinois.edu/bitstream/handle/2142/45987/ICT-08-027.pdf?sequence=2. 1
33、1.3. Al-Qadi, I. L., J. F. Masson, A. Loulizi, P. Collins, J. R. Woods, S. Bundalo-Perc, and K. K. McGhee. Long-Term Accelerated Aging and Low Temperature BBR Testing of Sealants. Interim Report No. B5508-5. National Research Council of Canada, 2004, p. 262 11.4. Al-Qadi, I. L., J. F. Masson, E. Fin
34、i, S. H. Yang, and K. K. McGhee. Development of Performance-Based Guidelines for Selection of Bituminous-Based Hot-Poured Pavement Crack Sealant: An Executive Summary Report. VTRC 09-CR7. Virginia Transportation Research Council, Charlottesville, VA, 2009. http:/vtrc.virginiadot.org/PubDetails.aspx?
35、PubNo=09-CR7. 2018 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law.TS-4e MP 25-7 AASHTO 11.5. Al-Qadi, I. L., S. H. Yang, J. F. Masson, and K. K. McGhee. Characterization of Low Temperature Mechanical Proper
36、ties of Crack Sealants Utilizing Direct Tension Test, Final Report. No. ICT-08-028. Illinois Center for Transportation, Rantoul, IL, December 2008. https:/www.ideals.illinois.edu/bitstream/handle/2142/45988/ICT-08-028.pdf?sequence=2. 11.6. Al-Qadi, I. L., S. H. Yang, M. A. Elseifi, S. Dessouky, A. L
37、oulizi, J. F. Masson, and K. K. McGhee. Characterization of Low Temperature Creep Properties of Crack Sealants Using Bending Beam Rheometry, Final Report. No. ICT-08-029. Illinois Center for Transportation, Rantoul, IL, December 2008. https:/www.ideals.illinois.edu/bitstream/handle/2142/45989/ICT-08
38、-029.pdf?sequence=2. 11.7. Collins, P., M. Veitch, J. F. Masson, and I. L. Al-Qadi. “Deformation and Tracking of Bituminous Sealants in Summer Temperatures: Pseudo-Field Behavior.” International Journal of Pavement Engineering, Vol. 9, No. 1, 2008, pp. 18. 11.8. AASHTO PP 85, Grading or Verifying the Sealant Grade (SG) of a Hot-Poured Asphalt Crack Sealant. 1This provisional standard was first published in 2015. 2018 by the American Association of State Highway and Transportation Officials. All rights reserved. Duplication is a violation of applicable law.
