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Mix and Structure of I-710's Long-Lasting Pavement

机译:I-710长寿命路面的混合和结构

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摘要

California's I-710 project includes full-depth asphalt concrete sections, which replace portland cement concrete (PCC), and asphalt concrete overlays on cracked and seated PCC. The asphalt mix and pavement section structural designs rely on technologies developed in the Strategic Highway Research Program (SHRP) and employ innovative construction specifications, as well as requirements stemming from the work of the Caltrans Accelerated Pavement Testing (CAL/APT) Program. The original pavement section consisted of PCC, cement-treated base, and aggregate base and subbase. The pavement, which opened to traffic in 1952, was in poor condition, since it had not received any overlays before the reconstruction. Rehabilitation included two strategies: 1. Crack and seat the PCC and apply an asphalt concrete overlay. 2. If an overlay would cause the clearance under a structure to fall short of the minimum, replace the PCC pavement with full-depth asphalt concrete sections, lowering the grade to provide the required clearance.
机译:加利福尼亚州的I-710项目包括全深度沥青混凝土剖面,该剖面代替了波特兰水泥混凝土(PCC),以及在破裂和就座的PCC上覆盖了沥青混凝土覆盖层。沥青混合料和路面部分的结构设计依赖于战略公路研究计划(SHRP)中开发的技术,并采用了创新的施工规格,以及Caltrans加速路面测试(CAL / APT)计划的工作要求。原始路面部分由PCC,水泥处理过的基础以及集料基础和次基础组成。 1952年通车的人行道状况恶劣,因为在重建之前没有收到任何铺面。修复包括两种策略:1.裂开PCC并使其就位,并铺设沥青混凝土覆盖层。 2.如果覆盖层会导致结构下方的间隙小于最小间隙,请用全深度沥青混凝土截面替换PCC路面,降低坡度以提供所需的间隙。

著录项

  • 来源
    《TR news》 |2004年第232期|p.8-9|共2页
  • 作者

    CARL I. MONISMITH;

  • 作者单位

    Civil Engineering (Emeritus), University of California, Berkeley;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 公路运输;
  • 关键词

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