Determining the Low-Temperature Fracture Toughness of Asphalt Mixtures

2002 ◽  
Vol 1789 (1) ◽  
pp. 191-199 ◽  
Author(s):  
Mihai O. Marasteanu ◽  
Shongtao Dai ◽  
Joseph F. Labuz ◽  
Xue Li
Keyword(s):  
Fracture Toughness ◽  
Low Temperature ◽  
Asphalt Mixtures ◽  
Temperature Fracture

Improvement of Low Temperature Fracture Toughness of AIST 403 Stainless Steel by Microalloying and Heat Treatment

1997 ◽  
Vol 16 (2) ◽  
pp. 149-157 ◽  
Author(s):  
G. Gupta, ◽  
S. Wadekar, ◽  
J.S. Dubey, ◽  
R.T. Savalia, ◽  
K.S. Balakrishnan, ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Fracture Toughness ◽  
Stainless Steel ◽  
Low Temperature ◽  
Temperature Fracture

Low Temperature Fracture Properties of Polyphosphoric Acid Modified Asphalt Mixtures

2012 ◽  
Vol 24 (8) ◽  
pp. 1089-1096 ◽  
Author(s):  
Eyoab T. Zegeye ◽  
Ki H. Moon ◽  
Mugur Turos ◽  
Timothy R. Clyne ◽  
Mihai O. Marasteanu
Keyword(s):  
Low Temperature ◽  
Polyphosphoric Acid ◽  
Asphalt Mixtures ◽  
Fracture Properties ◽  
Modified Asphalt ◽  
Temperature Fracture

BISALLOY STRUCTURAL 60

Alloy Digest ◽  
2019 ◽  
Vol 68 (2) ◽  
Keyword(s):  
Fracture Toughness ◽  
Shear Strength ◽  
Low Temperature ◽  
Yield Strength ◽  
Structural Steel ◽  
High Strength ◽  
Low Carbon ◽  
Temperature Fracture ◽  
Minimum Yield

Abstract Bisalloy Structural 60 steel (60 ksi minimum yield strength) is a low-carbon, low-alloy, high-strength structural steel exhibiting excellent cold formability and low-temperature fracture toughness. This datasheet provides information on composition and shear strength. It also includes information on forming and joining. Filing Code: SA-839. Producer or source: Bisalloy Steels Group Limited.

A Perspective on MoSi2 Based Composites

1992 ◽  
Vol 273 ◽  
Author(s):  
J. J. Petrovic ◽  
A. K. Vasudevan
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Elevated Temperature ◽  
Low Temperature ◽  
Oxidation Behavior ◽  
Developmental History ◽  
New Class ◽  
Structural Applications ◽  
History Of ◽  
Temperature Fracture

ABSTRACTMoSi2 based composites represent an important new class of “high temperature structural silicides”, with significant potential for elevated temperature structural applications in the range of 1200–1600 °C in oxidizing and aggressive environments. The properties of MoSi2 which make it an attractive matrix for high temperature composites are described and the developmental history of these materials traced. Latest results on elevated temperature creep resistance, low temperature fracture toughness, and composite oxidation behavior are summarized. Important avenues for future MoSi2 based composite development are suggested.

Recycling of Plastic and Rubber Tire Waste in Asphalt Pavements

1994 ◽  
Vol 344 ◽  
Author(s):  
Geoffrey R. Morrison ◽  
Nolan K. Lee ◽  
Simon A.M. Hesp
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Low Temperature ◽  
Local Governments ◽  
Complex Modulus ◽  
Loss Modulus ◽  
Crumb Rubber ◽  
Asphalt Binders ◽  
Rubber Tire ◽  
Temperature Fracture

AbstractThis paper discusses some important issues related to the use of recycled thermoplastics and rubber tire waste in asphalt binders for hot-mix pavements. Both high temperature rheological and low temperature fracture studies are presented on recycled polyethylene, devulcanized and crumb rubber-modified asphalt binders. The results are compared to unmodified and commercially available modified binders. This research is especially timely in light of the U.S. Intermodal Surface Transportation Efficiency Act of 1991, Section 1038 which, starting in 1995, will force state and local governments to use significant amounts of recycled rubber tire or plastic waste in federally funded highway projects.High temperature rheological measurements of the loss modulus, loss tangent and complex modulus show a significant improvement when only small quantities of crumb rubber, devulcanized crumb rubber or waste polyethylene are added to the asphalt binders.The low temperature fracture performance of the modified asphalts is greatly influenced by the interfacial strength between the dispersed and continuous phase. The fracture toughness increases dramatically, only when low molecular weight polymers are grafted in-situ onto the rubber and polymer dispersed phases in order to strengthen the interface. This points to a crack-pinning mechanism as being responsible for the dramatic increase in fracture toughness that is observed in this work. Single phase, devulcanized crumb rubber-asphalt systems perform quite poorly at low temperatures.

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