Design and construction of jointless concrete pavement
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(1.Key Laboratory of Structural Safty and Durability(Tsinghua University), Ministry of Education, Beijing 100084, China; 2.Langfang Transportation and Highway Engineering Co., Ltd., Langfang 065000, Hebei, China; 3.Tianjin Huaxia Architecture Design Co., Ltd.,Tianjin 300000, China)

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TU997

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    Abstract:

    Concrete pavement is widely used due to its long service life, low maintenance requirements, low energy consumption and simple construction. However, the driving comfort of concrete pavement is normally lower than that of asphalt pavement due to the existence of cutting joints. Meanwhile, the cutting joints may reduce the durability of concrete pavement that in turn increases the maintenance cost as well. In order to solve these problems, this paper presents a novel construction technique of concrete pavement, called jointless concrete pavement. By setting low shrinkage engineered fiber reinforced cementitious composite (LSECC) strips at the place of cutting joints of conventional concrete pavement, it is possible to localize the fine cracks into the LSECC strip instead of cracking in adjacent concrete slabs. The design methods for length of the ductile strip and the parameters of anchoring bars were proposed. The concept and design method of jointless concrete pavement was successfully used in practice.

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History
  • Received:February 21,2016
  • Revised:
  • Adopted:
  • Online: April 13,2017
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