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原文传递 Evaluation of Steel Paving Mesh Installations by FWD Analysis. Final rept. for 3 Mar 03-1 Jul 05.

题名：	Evaluation of Steel Paving Mesh Installations by FWD Analysis. Final rept. for 3 Mar 03-1 Jul 05.
作者：	AL-QADI, I. L.; BOYLE, M.
关键词：	Pavement-condition; Pavemen-deflections; *Evaluation-.;Steel-wires; Mesh-; Reinforced-concrete; Asphalts-; Hot-mix-paving-mixtures; Pavement-overlays; Highway-surfaces; Road-surfaces; Road-materials; Asphalt-pavements; Pennsylvania-; Research-project; Cracking-Fracturing; Pavement-reflectivity; Measuring-instruments; Construction-materials.
摘要：	This report evaluates three types of steel paving mesh in combination with a micro surfacing and a bituminous overlay. Steel paving mesh products are widely used in Europe but have not previously been used by a highway agency in the United States. Steel paving mesh has purported to perform best when placed and covered with a micro-surfacing pavement course prior to placing a bituminous overlay. The composition of the micro-surfacing is a modified mix design from what is indicated in the Pub 408 Specifications, Section 482 and is typical specified by a PENNDOT Standard Special Provision referenced as S00(ID04001C)- Cold-LaidLatex-Modified Emulsion Pavement Courses. To quantify the effectiveness of steel reinforcement in reducing reflection-cracking, Falling Weight Deflect meter (FWD) documentation for four sites will be generated annually during the next few years by taking deflection measurement at the joints. Initial data is currently available and represents the baseline condition before and just after the installations were completed. FWD testing was performed mid-lane at joints. The data was collected again immediately after paving. The annual FWD measurements were for the 2001 through 2005 to observe and determine any changes in the performance of the pavement with the steel reinforcement. The scope of this work order targets the analysis of the FWD data through the timeremaining for Research Program No. 359832. It is anticipated that the results will provide a quantitative measure of the steel reinforcement contribution to retard reflection cracking and the beneficial use of this material consistent with the European experience.
报告类型：	科技报告