Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2024. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ Research on Temperature Stability of Asphalt Based on Improved Softening Point Test https://trid.trb.org/View/2254896 Tue, 24 Oct 2023 09:37:04 GMT https://trid.trb.org/View/2254896 Utvärdering av polymermodifierat bitumen i returasfaltmassor https://trid.trb.org/View/2269740 Mon, 16 Oct 2023 09:26:35 GMT https://trid.trb.org/View/2269740 The investigation on the effects of sulphur on the performance of sulphur-bitumen binder https://trid.trb.org/View/2118413 Mon, 20 Mar 2023 17:17:29 GMT https://trid.trb.org/View/2118413 Preliminary Study of Using Spent Fluid Catalytic Cracking (FCC) Catalyst in Asphalt Binders https://trid.trb.org/View/1997859 Mon, 30 Jan 2023 10:27:09 GMT https://trid.trb.org/View/1997859 Law and Corresponding Relationship between TFOT and PAV of Asphalt https://trid.trb.org/View/1997861 Mon, 30 Jan 2023 09:28:13 GMT https://trid.trb.org/View/1997861 Study on micromechanisms of macro evaluation indexes for asphalt based on grey relation analysis https://trid.trb.org/View/2083829  resin > saturate > aromatic. The relationship of intramolecular bond energy and macro evaluation indexes is closer than that of intermolecular non-bond energy. Additionally, macro evaluation indexes can be reasonably explained by component molecules to form micromechanisms. The study results have a certain theoretical and practical value for rational evaluation and understanding of service performance for asphalt materials and provide a theoretical basis for anti-ageing, modification and rejuvenation of asphalt.]]> Thu, 22 Dec 2022 10:08:57 GMT https://trid.trb.org/View/2083829 Applicability of various mixing rules for hot asphalt recycled binders https://trid.trb.org/View/2030273 Thu, 27 Oct 2022 09:20:32 GMT https://trid.trb.org/View/2030273 Methods for determining stresses at key temperatures https://trid.trb.org/View/1993566  800 dmm is fluid. The division into states is carried out according to the temperatures at the above-mentioned penetrations.For a long time, penetration has been considered as an empirical characteristic, which is difficult to perceive as a mechanical characteristic, which is necessary to predict the behavior of bitumen and asphalt concrete under various temperature conditions. To remedy this shortcoming, many attempts were made to convert penetration into a mechanical quantity, in the beginning into stiffness modulus (Van der Poel), later into viscosity (many researchers). None of these attempts led to the normalization of the areas of temperature-rheological behavior of bitumen by viscosity values or stiffness moduli due to the technological purpose of viscosity and the impossibility of determining the stiffness modulus by penetration.The closest to solving the problem in the early 60 s were J. Carré and D. Laurent. They solved the problem of transforming penetration into viscosity by developing a method for obtaining stress and shear rate when a needle is immersing.This work is based on the fact that the Penetration Index is a characteristic of bitumen resistance to shear when the needle is immersing. At the same time, each penetration has its own speed and stress. The purpose of the work is to substantiate and determine the shear stress corresponding to penetration: 800 dmm; 31 dmm; 1.25 dmm and at 25 °C. The obtained results indicate that τ800, τ31 and τ1.25 are close to 1320 Pa, 2.1·105 Pa and 33·106 Pa respectively. The functional dependences obtained from them are semilogarithmic. They are identical to the W. Heukelom diagram DRB with the difference that the penetration is replaced by shear stress over the entire temperature range from softening point (T800) to breaking point temperature (T1.25).]]> Tue, 30 Aug 2022 17:27:55 GMT https://trid.trb.org/View/1993566 Evaluating the storage stability of SBR-modified asphalt binder containing polyphosphoric acid (PPA) https://trid.trb.org/View/1976990 Thu, 21 Jul 2022 11:30:34 GMT https://trid.trb.org/View/1976990 Quantitative relationship of fundamental rheological properties of bitumen with the empirical Ring and Ball softening point https://trid.trb.org/View/1850593 s _G′/tanδ at which G′/tanδ equals the proposed criterion values. With this method, a good agreement could be reached between Ts _G′/tanδ and the softening point for both unmodified bitumen and PMB. While keeping high accuracy for unmodified bitumen, the accuracy of Ts _G′/tanδ as an estimation of the softening point of PMB was largely improved when compared to the iso-modulus approach. The reliability of this quantitative relationship is preliminarily verified and its implementation is discussed in the Black space.]]> Wed, 28 Jul 2021 13:49:06 GMT https://trid.trb.org/View/1850593 Physical, chemical and morphology characterisation of nano ceramic powder as bitumen modification https://trid.trb.org/View/1852526 Mon, 07 Jun 2021 12:52:47 GMT https://trid.trb.org/View/1852526 Improved dynamic mechanical properties of sustainable bio-modified asphalt using agriculture waste https://trid.trb.org/View/1852530 Mon, 07 Jun 2021 12:52:46 GMT https://trid.trb.org/View/1852530 Properties of reclaimed asphalt pavement mixture with organic rejuvenator https://trid.trb.org/View/1752734 Tue, 22 Dec 2020 09:36:16 GMT https://trid.trb.org/View/1752734 Compatibility and Adhesion Properties of Rubber Asphalt https://trid.trb.org/View/1724976 Tue, 01 Sep 2020 15:58:21 GMT https://trid.trb.org/View/1724976 A novel method to characterise asphalt binder at high temperature https://trid.trb.org/View/1675711 BTSV, which is related to the Ring & Ball softening point and is an indicator of the binder stiffness, and the phase angle δBTSV, which provides information on the degree of binder modification. These two key parameters are used to discriminate among the different asphalt binder domains in the high-temperature range.]]> Tue, 28 Jan 2020 09:42:27 GMT https://trid.trb.org/View/1675711