Casting direction is an external factor that can influence the properties, including air permeability of concrete structures. In the current study, the effect of this factor on the air permeability of precast box culverts was investigated. The Torrent air permeability test was used to measure coefficient of air permeability kT for two box culvert specimens produced using ordinary Portland cement, water-to-binder ratio of 0.485, different casting directions (vertical and horizontal) at the age of 3 months. The obtained results show the different cover concrete qualities between the surfaces of the horizontal casting specimen, whereas the shortcomings during casting process were detected of the vertical casting specimen.


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    Title :

    Air permeability of cover concrete quality of precast box culverts affected by casting direction


    Additional title:

    Lecture Notes in Civil Engineering




    Publication date :

    2019-10-11


    Size :

    6 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    First Precast Concrete Box Culverts in Minnesota

    Hill, James J. | Online Contents | 1995


    Cement-concrete culverts

    Campbell, A.W. | Engineering Index Backfile | 1900


    Pre-cast concrete culverts

    Engineering Index Backfile | 1923


    Culverts

    Serdwick, Arthur | Engineering Index Backfile | 1917