Advanced SearchSearch Tips
An Experimental Study on Fundamental Properties of a Sprayable Waterproofing Membrane
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
  • Journal title : Tunnel and Underground Space
  • Volume 26, Issue 3,  2016, pp.220-234
  • Publisher : Korean Society for Rock Mechanics
  • DOI : 10.7474/TUS.2016.26.3.220
 Title & Authors
An Experimental Study on Fundamental Properties of a Sprayable Waterproofing Membrane
Chang, Soo-Ho; Kang, Tae-Ho; Choi, Soon-Wook; Lee, Chulho; Hwang, Gwi-Sung; Choi, Myung-Sik;
  PDF(new window)
Sprayable waterproofing membrane has been considered as a substitute for a sheet waterproofing membrane in a variety of underground excavation works. However, fundamental properties of sprayble waterproofing membrane have not been fully given yet. In this study, a new two-component sprayable waterproofing membrane prototype was developed. In addition, its physico-mechanical properties were measured and compared with those of two kinds of thin spray-on liners where constitutive materials and construction methods are very close to each other. From direct tensile tests, the sprayable waterproofing membrane with elongations at break between 250% and 300% showed much higher ductility than TSLs. However, the sprayable waterproofing membrane had a limitation as a support member since its bond strength and loading capacity was lower than those of TSLs. From three-dimensional X-ray CT images, the porosity of the sprayable waterproofing membrane was estimated to be 26.13%. However, most of pores which might have been generated during membrane curing were not observed to be interconnected but isolated.
Sprayable waterproofing membrane;Thin Spray-on Liner;Waterproofing;Support;Physico-mechanical properties;
 Cited by
균질한 품질 확보와 분진 저감을 위한 2성분 박층 뿜칠 라이너의 개발과 성능평가,장수호;최순욱;이철호;강태호;황귀성;김진태;최명식;

터널과지하공간, 2016. vol.26. 5, pp.441-453 crossref(new window)
Development and Performance Evaluation of a Two-component Thin Spray-on Liner to Guarantee Its Homogeneous Qualities and to Reduce Dust, Tunnel and Underground Space, 2016, 26, 5, 441  crossref(new windwow)
ASTM, 2010, Standard Test Method for Tensile Properties of Plastics, D638-10.

ASTM, 2013, Standard Test Method for Tensile Strength of Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlay Materials by Direct Tension (Pull-off Method), C1583/C1583M-13.

ASTM, 2015, Standard Test Method for Rubber Property-Durometer Hardness, ASTM D2240-15.

BS EN 1542:1999, 1999, Products and systems for the protection and repair of concrete structures-Test methods -Measurement of bound strength by pull-off.

BS EN 1766:2000, 2000, Products and systems for the protection and repair of concrete structures. Test methods. Reference concretes for testing.

Chang, S.-H., G.-P. Lee, J.-T. Han, S.-W. Choi, G.-S. Hwang and M.-S. Choi, 2015, Development of a Powder-type Thin Spray-on Liner and Its Performance Evaluation at Different Curing Ages, Tunnels & Underground Space, Vol. 25, No. 3, 293-302. crossref(new window)

Choi, S.-W., S.-H. Chang, C. Lee, G.-P. Lee, Y. H. Bae and T.-W. Ha, 2015, Performance Evaluation of Conical Picks for Roadheader in Copper Mines, Tunnels & Underground Space, Vol. 25, No. 6, 413-427.

EFNARC, 2008, Specification and Guidelines on Thin Spray-on Liners for Mining and Tunnelling.

Han, J.-T., G.-P. Lee, Y.-T. Park, S.-W. Choi, G.-S. Hwang, M.-S. Choi and S.-H. Chang, 2013, An experimental study on bonding and bearing capacities of thin spray-on liner to evaluate its applicability as a tunnel support member, J. of Korean Tunn Undergr Sp Assoc, Vol. 15, No. 6, 571-583. crossref(new window)

Holter, K.G., 2015, Performance of EVA-Based Membranes for SCL in Hard Rock, Rock Mech. Rock Eng., Vol. 49, 1329-1358.

ITAtech, 2013, ITAtech design guidance for spray applied waterproofing membranes, ITAtech Activity Group Lining and Waterproofing, ITAtech Report No. 2.

Makhlouf, R. and K. Holter, 2008, Rehabilitation of concrete lined tunnels using a composite sprayed liner with sprayed concrete and sprayable waterproofing membrane, Proc. of ITA World Tunnel Congress 2008, Agra, India, 1175-1182.

Nakashima, M., A.-L. Hammer, M. Thewes, M. Elshafie and K. Soga, 2015, Mechanical behaviour of a sprayed concrete lining isolated by a sprayed waterproofing membrane, Tunnelling and Underground Space Technology, Vol. 47, 143-152. crossref(new window)

Stubberfield, K., 2016, Masterseal $345^{(R)}$ Application Course-Lecture Material, Tunnelling & Underground Construction Academy (TUCA), London, April 13, 2016.

Thomas, A., 2009, Sprayed Concrete Lined Tunnels, Taylor & Francis, London.