You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    Volume 40, Issue 5 (September 2017)

    Varying Aperture Long Slot (VALS), a Method for Studying Grout Penetrability into Fractured Hard Rock

    (Received 27 July 2016; accepted 2 March 2017)

    Published Online: 2017

    CODEN: GTJODJ

      Format Pages Price  
    PDF (17.81 MB) 12 $25   ADD TO CART

    Cite this document

    X Add email address send
    X
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word



    Abstract

    This paper presents the design, manufacturing, and assembly of a new laboratory apparatus for investigation of grout filtration tendency and penetrability into rock fractures. The method makes it possible to examine grout samples composed of a wide range of cements and additives/admixtures with different water-to-solid ratios. The apparatus can be used to investigate the influence of different parameters on grout penetrability. Examples of these parameters include the cement particle size/distribution curves/chemical compositions, and the type and ratio of additives/admixtures that provide a variety of setting/hardening times, and rheological and strength properties. The grouting operation into the rock fractures is replicated using an artificial slot with 4-m-long constrictions varying from 230 to 10 µm, and selective inlet and outlet. The apparatus can also accommodate grouting experiments under both static and dynamic pressure conditions up to 1,500 kPa to study their influence. Illustrative results are also provided.

    Author Information:

    Ghafar, Ali Nejad
    Department of Civil and Architectural Engineering, KTH Royal Institute of Technology, Stockholm,

    Sadrizadeh, Sasan
    Department of Civil and Architectural Engineering, KTH Royal Institute of Technology, Stockholm,

    Magakis, Konstantinos
    Department of Civil and Architectural Engineering, KTH Royal Institute of Technology, Stockholm,

    Draganovic, Almir
    Department of Civil and Architectural Engineering, KTH Royal Institute of Technology, Stockholm,

    Larsson, Stefan
    Department of Civil and Architectural Engineering, KTH Royal Institute of Technology, Stockholm,


    Stock #: GTJ20160179

    ISSN:0149-6115

    DOI: 10.1520/GTJ20160179

    Author
    Title Varying Aperture Long Slot (VALS), a Method for Studying Grout Penetrability into Fractured Hard Rock
    Symposium ,
    Committee D18