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Currently, Wisconsin, U.S., opens the cold in-place recycled (CIR) base layer to traffic 0 to 3 h after construction. The CIR layer is then paved—when the in situ moisture content drops to 2.5%—with hot mix asphalt. There is no quantitative measure for estimating the opening time to traffic, and, to determine the in situ moisture content, there is a need to obtain field samples and perform laboratory measurements. These methods are time-consuming, labor-intensive, or both. To overcome these shortcomings, the feasibility for use of quantitative and real-time evaluation techniques was investigated. Long-pin shear (LPS) and short-pin raveling (SPR) tests developed as a part of the National Corporate Highway Research Program 09-62 study were used for measuring the properties of the CIR layer (blow count and torque) over time. Regression models were developed from these tests using the in situ moisture content measured from field samples, which were then used for proposing threshold values in Wisconsin. The SPR and LPS test data enabled the establishment of correlations between the measured values. Statistical analysis revealed that the pavement temperature and curing time significantly influence the measured properties from the LPS and SPR tests.

The traffic speed deflectometer (TSD) has been gaining interest for pavement management practices, as it can continuously collect deflection data at traffic speed without requiring traffic control. TSD data have been typically used to provide an estimate of the structural condition of pavements with a limited range of significant parameters considered in the analysis. To date, limited studies have been conducted in or for cold regions to consider the potential use of TSD data for pavement structural assessment. This study aimed to bridge this gap by developing a twofold approach to: (1) mechanistically characterize the structural integrity and remaining life of pavements; and (2) compare TSD and falling weight deflectometer (FWD) data collected in the field, considering the features of pavement facilities in Wisconsin. A field testing plan was developed to characterize the site-specific features of eight representative pavement sections, with a total length of about 30 mi and distinct pavement structures, truck traffic patterns, and climatic conditions. The postprocessed results underscored the significance of the TSD data and their potential for the structural evaluation of underlying layers in a multilayered pavement system when integrated with the site-specific pavement profile and truck traffic information derived from field testing. A comparison of the normalized deflections and structural parameters characterized by TSD and FWD data showed similar trends, while the average FWD-based deflections were 12%–37% higher than the TSD-based deflections.

Etude de la question du temoignage de la verite et du langage chez Levinas et Kierkegaard. Etablissant une analogie entre la conception du dire developpee par Levinas dans «Autrement qu'etre ou au-dela de l'essence», d'une part, et la reflexion sur le silence dans l'oeuvre pseudonymique de Kierkegaard, d'autre part, l'A. montre que la difference entre les deux philosophes ne reside pas dans le primat de la subjectivite chez le second et le primat de l'autre chez le premier, mais bien dans leur rapport au totalement Autre, c'est-a-dire a Dieu

L'A. etudie l'interpretation de l'attestation ontologique de soi de Heidegger et l'interpretation de l'injonction ethique de Levinas par P. Ricoeur. Appliquant l'idee de l'affirmation originale developpee par Spinoza, Maine de Biran et Nabert, P. Ricoeur ouvre la voie royale a la reflexion philosophique fondee sur le depassement de la pensee de l'autre