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    <title>Transport Research International Documentation (TRID)</title>
    <link>https://trid.trb.org/</link>
    <atom:link href="https://trid.trb.org/Record/RSS?s=PHNlYXJjaD48cGFyYW1zPjxwYXJhbSBuYW1lPSJkYXRlaW4iIHZhbHVlPSJhbGwiIC8+PHBhcmFtIG5hbWU9InN1YmplY3Rsb2dpYyIgdmFsdWU9Im9yIiAvPjxwYXJhbSBuYW1lPSJ0ZXJtc2xvZ2ljIiB2YWx1ZT0ib3IiIC8+PHBhcmFtIG5hbWU9ImxvY2F0aW9uIiB2YWx1ZT0iMCIgLz48L3BhcmFtcz48ZmlsdGVycz48ZmlsdGVyIGZpZWxkPSJpbmRleHRlcm1zIiB2YWx1ZT0iJnF1b3Q7UmVhY3Rpb24gICggY2hlbSApICZxdW90OyIgb3JpZ2luYWxfdmFsdWU9IiZxdW90O1JlYWN0aW9uIChjaGVtKSZxdW90OyIgLz48L2ZpbHRlcnM+PHJhbmdlcyAvPjxzb3J0cz48c29ydCBmaWVsZD0icHVibGlzaGVkIiBvcmRlcj0iZGVzYyIgLz48L3NvcnRzPjxwZXJzaXN0cz48cGVyc2lzdCBuYW1lPSJyYW5nZXR5cGUiIHZhbHVlPSJwdWJsaXNoZWRkYXRlIiAvPjwvcGVyc2lzdHM+PC9zZWFyY2g+" rel="self" type="application/rss+xml" />
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    <language>en-us</language>
    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
      <url>https://trid.trb.org/Images/PageHeader-wTitle.jpg</url>
      <link>https://trid.trb.org/</link>
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    <item>
      <title>Understanding emission dynamics in bitumen using HSGC-MS: an exploratory study of additive interactions</title>
      <link>https://trid.trb.org/View/2427524</link>
      <description><![CDATA[This study employs headspace gas chromatography mass spectrometry (HS-GC-MS) to investigate the influence of additives on volatile organic compound (VOC) emissions in bitumen. The research examines the interplay between the analysed chemicals and additives and considers the effects this may have within bitumen matrices. Considering the principles of partition coefficient (PC) and emission pattern observations, the method sheds light on the nuanced dynamics of additive interactions. The effects of powdered activated carbon, synthetic zeolite 13X, and Re-refined engine oil bottoms (REOB) additives on emissions are explored, revealing their impacts. HS-GC-MS offers direct VOC analysis in the gas phase, eliminating complex extraction techniques and filtering. The findings stress the importance of considering additive consequences in bitumen emissions. The methodology enhances additive selection for sustainable materials and broadens emissions comprehension. HS-GC-MS is a crucial tool for refining additives and addressing diverse application implications of additives. This work underscores the need to utilise varied approaches for bitumen and additive interactions.]]></description>
      <pubDate>Tue, 10 Sep 2024 14:18:53 GMT</pubDate>
      <guid>https://trid.trb.org/View/2427524</guid>
    </item>
    <item>
      <title>Code of Practice for the management of alkali aggregate reactivity template</title>
      <link>https://trid.trb.org/View/2134809</link>
      <description><![CDATA[The Code of Practice for the Management of Alkali Aggregate Reactivity template has been developed for the use of Austroads member agencies. The document outlines the management strategies, testing and approval process required to regulate alkali aggregate reactivity in concrete structures. Alkali aggregate reaction (AAR), often referred to as concrete cancer, is a chemical reaction that occurs when the alkalis in cement come into contact with certain types of aggregate, triggering the expansion of aggregate which can lead to loss of strength and spalling. This chemical process can prompt the premature deterioration of concrete structures, causing serious structural damage and costly repairs.]]></description>
      <pubDate>Mon, 06 Mar 2023 16:22:36 GMT</pubDate>
      <guid>https://trid.trb.org/View/2134809</guid>
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    <item>
      <title>Development of High Stability and Fuel Resistant Airfield Asphalt Mixture</title>
      <link>https://trid.trb.org/View/1930560</link>
      <description><![CDATA[Airport runways and taxiways are commonly comprised of a flexible type of pavement surfaced with asphalt mixture that need to endure extreme stresses induced by slow-moving aircrafts, combined with extreme climatic conditions. Additionally, asphalt surfaces could be exposed to fuel spills and/or de-icing chemicals which can further lead to accelerated deterioration of asphalt mixes. So, it is extremely important for airport owners to utilize asphalt mixtures that provides increased level of resistant to load-associated and environmental surface distresses, while providing high level of resistant to detrimental effects of fuel and hydraulic fluid spills. This paper provides information on steps employed in designing a high stability and fuel-resistant asphalt mixture for the busiest airport in Canada, the Toronto Pearson International Airport. Performance testing included: (a) 24-hour fuel immersion test, (b) rutting performance by using Asphalt Pavement Analyzer, Hamburg Wheel Tracking Test, and Flow, and ( c) compression-tension fatigue and dynamic modulus, and ( d) Tensile Strength test. Production and paving experience observed during the first-in-Canada field trial are also included in this paper. This paper further explains the applicability of methodology adopted to develop this mix to other airports in Canada.]]></description>
      <pubDate>Tue, 22 Mar 2022 14:50:44 GMT</pubDate>
      <guid>https://trid.trb.org/View/1930560</guid>
    </item>
    <item>
      <title>The transportation of water reactive substances through road tunnels equipped with sprinkler system: a literature review</title>
      <link>https://trid.trb.org/View/1375880</link>
      <description><![CDATA[Dangerous goods transportation and consequently the amount of dangerous goods incidents are increasing. Another increasing trend is to install sprinkler systems in tunnels. This is a literature review concerning risks with water reactive substances transported through road tunnels equipped with sprinkler systems. The knowledge concerning the risks from dangerous goods and water application in tunnels is limited. Several water reactive chemicals have been identified. As they commonly are transported in liquid form, a liquid pool will be formed upon release. In most cases the pool will react exothermically with ground water, water from the substrate and in several cases water from the atmosphere. Thus, further application of water may actually improve the situation. Further and larger studies are needed to attain a better picture of the risks and benefits when transporting water-reactive DG through road tunnels, taking into consideration the risk of alternative routes.]]></description>
      <pubDate>Wed, 25 Nov 2015 11:10:54 GMT</pubDate>
      <guid>https://trid.trb.org/View/1375880</guid>
    </item>
    <item>
      <title>Analytical method in carbonation of cement treated base material</title>
      <link>https://trid.trb.org/View/1224060</link>
      <description><![CDATA[Carbonation of cement treated base (CTB) material is a deleterious factor about durability of pavement. Thus, some research has been done to study its possible causing condition and preventative measures by early curing and surface sealing. This is while that there is not significant information about its rate or variation trend as a function of CTB mixture constituents or environmental conditions. This issue has had more studies and background in concrete in comparison with soil stabilisation in the form of experimental or analytical investigations. Therefore, in this paper, the causing factors of carbonation in CTB material has been reviewed by adapting one dimensional carbon dioxide diffusion mathematical model. As a result, carbonation rate can be quantified by CTB mixture constituent and relative humidity.]]></description>
      <pubDate>Fri, 30 Nov 2012 14:42:14 GMT</pubDate>
      <guid>https://trid.trb.org/View/1224060</guid>
    </item>
    <item>
      <title>Study on Pozzolanic Reaction Degree in Calcined Coal Gangue--Ca (OH)2-H2O System</title>
      <link>https://trid.trb.org/View/1086004</link>
      <description><![CDATA[The pozzolanic reaction degrees for different calcined coal gangue-Ca£¨OH£©2- H2O systems was studied by determining the content of Ca£¨OH£©2 in the samples with different curing periods. The results show that the consumed content of Ca£¨OH£©2 in pozzolanic reaction in the system without admixture is related to the initiative content of Ca£¨OH£©2 in the system. An optimistic initiative content of Ca£¨OH£©2 is found. The pozzolanic reaction degrees may improve sharply in short curing periods with a suitable content of Na2SO4 being added into the system. The pozzolanic reaction degree in the system with standard curing is higher than that with water curing.]]></description>
      <pubDate>Tue, 04 Jan 2011 09:48:40 GMT</pubDate>
      <guid>https://trid.trb.org/View/1086004</guid>
    </item>
    <item>
      <title>Influence of cellular imperfections on mechanical response of metallic foams</title>
      <link>https://trid.trb.org/View/1084651</link>
      <description><![CDATA[n this paper, we develop and implement high-resolution, computationally efficient multi-cell finite-element (FE) models of metallic foams in order to more accurately investigate the collapse behaviour of these emerging materials. The main objective is to investigate the effect of morphological imperfections at the cellular scale on the global response of the cellular material. Attention was therefore devoted to three related aspects of the work. The first is concerned with the development of FE models of metallic foams accounting for morphological imperfections at the cellular level. The second is concerned with conducting parametric studies of different model parameters and examining their effect on the instantaneous load-deformation history, peak collapse loads and energy absorption levels of the foam. The third is devoted to a thorough comparison of the numerical simulations with experimental results. Results revealed the influence of these imperfections on low-density foams, and to a much lesser extent on high-density ones. (A)]]></description>
      <pubDate>Wed, 22 Dec 2010 08:43:19 GMT</pubDate>
      <guid>https://trid.trb.org/View/1084651</guid>
    </item>
    <item>
      <title>Air Concentrations in Concrete Daily Situations as a Base of Hygienic Assessment</title>
      <link>https://trid.trb.org/View/1084469</link>
      <description><![CDATA[Official measuring points cannot represent the real burden to individuals of exhaust gases. Although quality of life in Vienna is considered very high, the situation concerning air concentration is similar to other European cities. A sound base for an environmental evaluation has to consider different mobility patterns and different sensitivity for different components of exhaust gases. In fact there is a wide range of biologic sensitivities for irritant gases like ozone or nitrogen dioxides as well as particulate matters. Among sensitive groups of persons are included children as well as already affected people (bronchitis, asthma). Together with the Austrian Federal Environmental Agency a pilot study was carried out (finished in December 2006) to be able to characterize the health effects on children in urban areas. In order to define the health effects on children in urban areas, particulate matter, nitrogen oxides and carbon monoxide concentrations were measured in schools and the urban environment of children, including measures inside different modes of transport. Measurements in different transport modes as well as in street sections and within buildings (and different floors) showed a high daily background concentration as well as considerable concentration peaks depending on traffic volume. The results of the study suggest that extensive, large-scale reductions of particulate matter and its gaseous precursors are required for a decrease of the related health risks for children and other vulnerable groups. For the covering abstract see ITRD E141518.]]></description>
      <pubDate>Wed, 22 Dec 2010 08:35:42 GMT</pubDate>
      <guid>https://trid.trb.org/View/1084469</guid>
    </item>
    <item>
      <title>Properties and performances of asphalt binders and asphalt mixes modified with polyphosphoric acid</title>
      <link>https://trid.trb.org/View/1082450</link>
      <description><![CDATA[Decreasing the thermal susceptibility of a bituminous binder could be achieved through different ways as from the use of synthetic polymer to special refining process conditions as well as usage of inorganic additives like polyphosphoric acid (PPA). The growing usage of PPA over the past years has raised interest on its chemical interaction with bitumen. The mechanism of interaction between the PPA and the bitumen asphaltenic fraction is discussed. However, very little information is currently available on mix performances resulting from the usage of a PPA modified binder. The influence of a PPA modified binder on typical properties like rutting, fatigue and moisture resistance of the standard mix formula currently used in France (BBSG, BBTM and EME) is presented. For the covering abstract see ITRD E157233]]></description>
      <pubDate>Mon, 29 Nov 2010 10:58:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/1082450</guid>
    </item>
    <item>
      <title>PRECRUSHED SLAG</title>
      <link>https://trid.trb.org/View/1074991</link>
      <description><![CDATA[THIS ARTICLE REPRODUCES A PAPER PRESENTED AT THE ONE-DAY CONFERENCE ON THE MANUFACTURE AND USE OF BLAST-FURNACE SLAG, WHICH WAS HELD AT PONT-A-MOUSSON, 8TH JUNE 1973. A REVIEW IS PRESENTED OF THE LABORATORY AND IN-SITU STUDIES OF THE IMPROVEMENT OF THE REACTIVITY OF 20/40 GRANULATED SLAG BY MEANS OF PRECRUSHING WITH A VIEW TO ENABLING THAT CLASS OF SLAG TO BE MOVED UP TO THE 40/60 CLASS. THE IMPROVEMENT CONSISTS IN INCREASING THE ACTIVE FINE CONTENT OF THE RAW MATERIAL BY CRUSHING IN A ROD GRINDER. IT WAS OBSERVED THAT THIS TECHNIQUE INCREASED THE DENSITY OF THE MIXTURE AND THEREFORE THE RATE OF SETTING OF THE MATERIALS STABILIZED. ITS USE WOULD WIDEN THE FIELD OF APPLICATION OF THE STABILIZATION OF SAND AND GRAVEL. THE TECHNIQUE  WOULD ALSO BE OF INTEREST FOR LONG-DISTANCE DELIVERIES.]]></description>
      <pubDate>Sun, 21 Nov 2010 14:50:32 GMT</pubDate>
      <guid>https://trid.trb.org/View/1074991</guid>
    </item>
    <item>
      <title>STABILIZATION OF CHALKY SOIL WITH GRANULATED SLAG</title>
      <link>https://trid.trb.org/View/1074970</link>
      <description><![CDATA[THIS ARTICLE DESCRIBES AN INVESTIGATION INTO TTHE POSSIBILITY OF USING CHALKY MATERIALS (SAND AND GRAVEL) , PARTICULARLY ABUNDANT IN PICARDIE AND CHAMPAGNE, IN ROAD CONSTRUCTION. IN THE PAST, THE UTILIZATION OF NON-STABILISED CHALKY MATERIALS RESULTED IN WEAR AND SENSITIVITY TO FROST; THUS THE STABILIZATION OF CHALKY SAND WITH GRANULATED SLAG , ASSUMING ADEQUATE COATING OF CHALK PARTICLES WITH THE SLAG, WAS SUCESSFULLY USED. VARIOUS FACTORS WERE STUDIED, SUCH AS PROPORTIONING AND REACTIVITY OF THE SLAG, COMPACTION RATIO OF SAMPLES, TIME-RELATED EVOLUTION OF MECHANICAL STRENGTH. RESULTS SHOW THAT ADEQUATE FINAL STRENGTH AND RATE OF SETTING CAN BE ACHIEVED IF  THE REACTIVITY AND THE PROPORTIONING ARE CAREFULLY CALCULATED, THE FINAL  STRENGTH AND RATE OF SETTING BEING THE TWO MOST IMPORTANT CHARACTERISTICS AS REGARDS FROST BEHAVIOUR. THE CONCLUSIONS REACHED IN THE STUDY WILL HAVE TO BE ADAPTED AS A FUNCTION OF THE DIFFERENT NATURE OF VARIOUS DEPOSITS. CHALKY MATERIALS STABILIZED WITH GRANULATED SLAG SHOULD ONLY BE USED IN THE CONSTRUCTION OF ROAD BASES OF LIGHTLY-TRAFFICKED ROADS (CHALKY SAND) OR HEAVILY-TRAFFICKED (CHALKY GRAVEL) .]]></description>
      <pubDate>Sun, 21 Nov 2010 14:50:01 GMT</pubDate>
      <guid>https://trid.trb.org/View/1074970</guid>
    </item>
    <item>
      <title>USE OF FLY-ASH AS POZZOLANIC BINDER</title>
      <link>https://trid.trb.org/View/1072884</link>
      <description><![CDATA[THE INFLUENCE OF DIFFERENT MANUFACTURING CONDITIONS ON THE PHYSICAL AND CHEMICAL CHARACTERISTICS OF FLY-ASH (COMPOSITION, FINENESS, ETC) AND ON ITS  POZZOLANIC ACTIVITY IS STUDIED. THE FACTORS CONSIDERED ARE: THE PERCENTAGE OF BURNT ANTHRACITE, FUEL ASH AND ENERGY (IN KW), AND THE COMPOSITION OF THE COAL BURNT DURING THE PERIOD OF RECUPERATION OF FLY-ASH IN A POWER STATION. TO DETERMINE THE POZZOLANIC ACTIVITY, AN INDEX OF REACTIVITY TO LIME AND CEMENT IS ESTABLISHED TOGETHER WITH THE COMPRESSIVE STRENGTH OF CEMENT-ASH MIXTURES. IT IS CONCLUDED THAT, EXCEPT DURING STOPPAGE AND RESTARTING TIME, OPERATING CONDITIONS HAVE LITTLE EFFECT ON COMPOSITION AND PROPERTIES, AS HAS THE QUANTITY OF ASH IN THE FUEL USED AS LONG AS THE LATTER ORIGINATES FROM THE SAME COAL MINE.]]></description>
      <pubDate>Sun, 21 Nov 2010 13:40:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/1072884</guid>
    </item>
    <item>
      <title>PHYSIO-CHEMICAL PROPERTIES OF LIME</title>
      <link>https://trid.trb.org/View/1072688</link>
      <description><![CDATA[LIGHT LIMES ARE USED IN MOST ROAD CONSTRUCTION TECHNIQUES, USUALLY IN SMALL QUANTITIES (1 TO 4 PER CENT). THEY SHOULD BE AS REACTIVE AS POSSIBLE AND THIS REACTIVITY IS A FUNCTION OF THE CONDITIONS OF MANUFACTURE AND STORAGE. THE OBJECT OF THE STUDY IS TO HAVE A BETTER UNDERSTANDING OF THE PHYSIO-CHEMICAL PROPERTIES WITH A VIEW TO IMPROVING THE REACTIVITY AND PREVENTING ANY DETERIORATION DURING STORAGE. THE MAIN POINTS TO BE STUDIED ARE: (1) REACTIVITY OF COMMERCIAL AND LABORATORY LIMES AS DETERMINED BY CALORIMETRY AND CONVENTIONAL TESTS; (2) DETERIORATION ON EXPOSURE TO AIR AS A FUNCTION OF THE GRANULARITY AND THE STORAGE CONDITIONS; (3) PRELIMINARY STUDY CONCERNING THE POSSIBILITIES OF IMPROVING THE STORAGE CONDITIONS FOR THE LIME USING HYDROPHOBIC PRODUCTS.]]></description>
      <pubDate>Sun, 21 Nov 2010 13:35:15 GMT</pubDate>
      <guid>https://trid.trb.org/View/1072688</guid>
    </item>
    <item>
      <title>CHEMISTRY AND PROPERTIES OF EPOXY RESINS</title>
      <link>https://trid.trb.org/View/1071883</link>
      <description><![CDATA[THE AUTHOR RECALLS THE HIGH MECHANICAL AND CHEMICAL STRENGTH, AND THE THERMOSTABILITY OF EPOXY RESINS, WHICH DEPEND MAINLY ON THEIR STRUCTURAL COMPONENTS AND THE CONDITIONS UNDER WHICH THE EPOXY POLYMER IS PREPARED; THE EPOXY POLYMER RESULTS FROM THE CHEMICAL REACTION BETWEEN A POLYEPOXY MOLECULE AND A MULTI FUNCTIONAL RETICULATION AGENT. THIS REACTION TAKES PLACE IN-SITU AND IS, THEREFORE, VERY SENSITIVE TO EXTERNAL CONDITIONS (TEMPERATURE, MOISTURE CONTENT, MIXING AND PROPORTIONING TECHNIQUES). THE MAIN POLYEPOXY MOLECULES AND RETICULATION AGENTS ARE LISTED ACCORDING TO THEIR MOST COMMON USES. SPECIAL EMPHASIS IS PLACED ON BISPHENOL A DIGLYCIDIL ETHER AND  ON POLYAMINE HARDENING AGENTS USED IN CIVIL ENGINEERING OPERATIONS. THE IMPORTANCE OF POLYMER FORMULATION IS STRESSED TOGETHER WITH THE CONDITIONS  OF APPLICATION OF THE EPOXY RESIN (TEMPERATURE, CONDITIONS OF THE SURFACE ON WHICH IT IS APPLIED).]]></description>
      <pubDate>Sun, 21 Nov 2010 13:11:06 GMT</pubDate>
      <guid>https://trid.trb.org/View/1071883</guid>
    </item>
    <item>
      <title>X-RAY DIFFRACTION ANALYSIS OF HYDRATES FORMED DURING CA (OH) 2 POZZOLANIC REACTION</title>
      <link>https://trid.trb.org/View/1071853</link>
      <description><![CDATA[A STUDY IS PRESENTED OF THE HYDRATES FORMED DURING THE REACTION BETWEEN POZZOLAN MATERIAL AND CA (OH) 2, AND X-RAY DIFFRACTION ANALYSIS IS USED TO IDENTIFY THE INGREDIENTS IN POZZOLAN MATERIAL, HYDRATES, AND CARBONATION PRODUCTS. RESULTS ARE GIVEN AND DISCUSSED.]]></description>
      <pubDate>Sun, 21 Nov 2010 13:10:27 GMT</pubDate>
      <guid>https://trid.trb.org/View/1071853</guid>
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