Thin spray-on liner adhesive strength test method and effect of liner thickness on adhesion

ÖZTÜRK H., tannant d.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, cilt.47, sa.5, ss.808-815, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 47 Sayı: 5
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.ijrmms.2010.05.004
  • Dergi Adı: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.808-815
  • Anahtar Kelimeler: Thin spray-on liner, Rock support, Adhesion test, Adhesive strength, Liner thickness, Substrate, SURFACE-ENERGY, COPPER-FILMS, RIGID PUNCH, BOND
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

The adhesive strength between a thin spray-onliner(TSL) and rock is an important property controlling the designandperformanceofTSLrocksupportsystems. The advantages and disadvantages of various adhesion test methods used by the coatings, microelectronics and concrete industries with respect to TSLs are discussed. A suggested test method for TSL materials is presented, which is based on direct pull-off of an elevator bolt that is attached to a liner with strong epoxy. To interpret the test results correctly, the effect of the liner thickness on adhesive strength must be assessed. This was shown experimentally and was supported by an analytical solution. The adhesive strength is inversely proportional to the square root of the liner thickness. Tests were performed using Tekflex as a liner material, which was applied to concrete or granite substrates. (C) 2010 Elsevier Ltd. All rights reserved.