• (PDF) Scaling and internal cracking in wet freeze/thaw testing

    Waterproofing of permanent sprayed concrete tunnel linings with sprayed membranes in a continuous sandwich structure has been attempted since 2000 and has seen increased use in some countries.

  • Performance of EVA-Based Membranes for SCL in Hard Rock

    the in situ moisture condition and possible moisture transport mechanisms through sprayed concrete tunnel linings are published in Holter and Geving (2015) which forms the basis for moisture exposure during laboratory testing. The freeze–thaw resistance of the sprayed concrete in tunnel linings under realistic moisture contents and

  • Moisture Transport Through Sprayed Concrete Tunnel Linings ...

    The investigation of the in situ moisture condition and possible moisture transport mechanisms through sprayed concrete tunnel linings are published in Holter and Geving (2015) which forms the ...

  • Waterproofing Sprayed Concrete Linings - Existing Methods ...

    Sprayed Concrete Tunnels are a popular solution to the increasing need for fast and efficient transport systems in urban environments worldwide. For shorter tunnels (less than 1km long) with varying geometry and junctions, the use of a sprayed concrete lining (SCL) is an efficient and cost-effective construction technique.

  • Moisture Transport Through Sprayed Concrete Tunnel Linings

    State-of-the-art sprayed concrete material applied with the wet mix method exhibits very low hydraulic conductivities, lower than 10−14 m/s, thus saturated conductive water flow is a very unlikely dominant transport mechanism. Moisture transport through the lining structure by capillary flow and vapor diffusion are calculated to approximately ...

  • [PDF] Performance of EVA-Based Membranes for SCL in Hard ...

    The bonded property of multi-layered sprayed concrete tunnel linings (SCL) waterproofed with sprayed membranes means that the constituent materials will be exposed to the groundwater without any draining or mechanically separating measures. Moisture properties of the sprayed concrete and membrane materials are therefore important in order to establish the system properties of such linings.

  • Studies of the Physical Properties of Hardened Portland ...

    Moisture Transport Through Sprayed Concrete Tunnel Linings. K. Holter, Stig Geving; Materials Science; Rock Mechanics and Rock Engineering; 2015; 19. Highly Influenced. View 5 excerpts, cites methods, background and results; Save. Alert. Research Feed. Porosity prediction of calcium phosphate cements based on chemical composition.

  • Fiber-Reinforced Sprayed Concrete as a Permanent Tunnel Lining

    Moisture transport through the lining structure by capillary flow and vapor diffusion are calculated to approximately 3 cm3/m2 per day for lining thicknesses in the range of 25–35 cm and ...

  • Stig Geving - NTNU

    (2016) Moisture Transport Through Sprayed Concrete Tunnel Linings. Rock Mechanics and Rock Engineering. vol. 49 (1). Geving, Stig; Lunde, Erik; Holme, Jonas. (2015) Laboratory investigations of moisture conditions in wood frame walls with wood ...

  • Freeze–thaw resistance of sprayed concrete in tunnel linings

    Aug 27, 2015· Freeze–thaw exposure of wet-mix sprayed concrete for permanent tunnel linings is characterized by thermal and moisture gradients between wet temperate rock mass/concrete and cold dry concrete/air surface. Hardened sprayed concrete with water/binder ratios in the range of 0.45–0.47 has been studied. The standard freeze/thaw tests like e.g. salt frost scaling according to CEN/TS …

  • Spray Applied Waterproofing Membranes | Products ...

    Moisture Transport Through Sprayed Concrete Tunnel Linings (2014) ITATECH harmonized best practice guidance for spray applied waterproof membranes . Crossrail – design and construction / Crossrail – Entwurf, Bemessung und Ausführung

  • Static response of double shell concrete lining with a ...

    Sep 01, 2017· Moisture transport through sprayed concrete tunnel linings Rock Mech. Rock Eng., 49 ( 2016 ), pp. 243 - 272, 10.1007/s00603-015-0730-1 …

  • LATTICE GIRDERS OFFER ECONOMY AND PERFORMANCE FOR TUNNEL ...

    In addition, the lining system prevents air and moisture penetration to the tunnel face. In applications of the lining system in German tunnelling construction, it was confirmed that improved tunnel stability resulted from penetration of the lining material into voids …

  • MSFRS tunnel linings - application example Adfil synthetic ...

    Typical end-uses of shotcrete include sprayed concrete tunnel linings. Following several tunnel fires in Europe, design engineers have had their minds firmly focused on how to prevent explosive spalling of concrete in tunnels. The phenomenon occurs when concrete is exposed to high temperatures such as those experienced during a hydrocarbon fire.

  • Sprayed Concrete -Properties, Materials and Applications ...

    The fluidity of sprayed concrete make them be sprayed in higher speed and volumes. After excavation, the tunnel linings or the retaining wall lining can be immediately sprayed with the lining mass. In the USA, walls that have a thickness of 1 m have been constructed …

  • Design of Sprayed Concrete Linings in Soft Ground─ A ...

    Mar 11, 2014· The use of Sprayed Concrete Lining is an established method of soft ground tunnelling using sprayed concrete to support the excavation both temporarily and permanently. Compared with other tunnelling methods, such as using a Tunnel Boring Machine (TBM), the biggest advantage of the SCL technique is it allows tunnels and junctions to be built at ...

  • Moisture Transport Through Sprayed Concrete Tunnel Linings ...

    Jan 01, 2016· Waterproofing of permanent sprayed concrete tunnel linings with sprayed membranes in a continuous sandwich structure has been attempted since 2000 and has seen increased use in some countries. The main function of a sprayed membrane from a waterproofing perspective is to provide crack bridging and hence prevent flow of liquid water into the tunnel through cracks and …

  • Stig Geving - Academia.edu

    Stig Geving studies Base Isolation, Buildings, and Masonry Buildings.

  • "Properties and function of permanent shotcrete linings ...

    The continuously bonded tunnel lining system based on sprayed concrete and sprayed waterproofing membrane (sprayed concrete lining, SCL) represents fundamentally different system properties compared to traditional and commonly used tunnel lining systems. This lining system has been investigated as a waterproof and permanent lining option for road and rail tunnels in Norway, and a …

  • Fire Protection for new and existing Underground ... - tunnel

    Consequently, the use of fibre modified concrete should be considered carefully for use in structurally reinforced concrete tunnel linings. Thermal Barriers as Passive Fire Protection Systems Thermal barriers are designed to be installed (spray applied, cast in-situ or even as prefabricated boards) as a shield to protect the structure from fire ...

  • Moisture Transport Through Sprayed Concrete Tunnel Linings ...

    Mar 11, 2015· 10%· Waterproofing of permanent sprayed concrete tunnel linings with sprayed membranes in a continuous sandwich structure has been attempted since 2000 and has seen increased use in some countries. The main function of a sprayed membrane from a waterproofing perspective is to provide crack bridging and hence prevent flow of liquid water into the tunnel through …

  • Karl HOLTER | Senior Specialist & Professor (Assistant ...

    Moisture Transport Through Sprayed Concrete Tunnel Linings ... Waterproofing of permanent sprayed concrete tunnel linings with sprayed membranes in a …

  • Concreto projetado para revestimentos definitivos em ...

    Holter, K. G. (2015) Properties of waterproof sprayed concrete tunnel linings. PhD thesis, Norwegian University of Technology and Science, Trondheim, ISBN: 978-82-326-1050-1. Holter, K. G.; Geving, S. (2016) Moisture transport through sprayed concrete tunnel linings. Rock Mechanics and Rock Engineering, Vol 49/1, pp 243-272. 52

  • Jiang SU | Technical Director | BEng, MPhil, PhD, CEng ...

    Spray-applied membranes for waterproofing of sprayed concrete tunnels have led to the possibility of shear transfer between primary and secondary linings through the membrane interface, with the ...

  • (PDF) Scaling and internal cracking in wet freeze/thaw testing

    Waterproofing of permanent sprayed concrete tunnel linings with sprayed membranes in a continuous sandwich structure has been attempted since 2000 and has seen increased use in some countries.

  • Performance of EVA-Based Membranes for SCL in Hard Rock

    the in situ moisture condition and possible moisture transport mechanisms through sprayed concrete tunnel linings are published in Holter and Geving (2015) which forms the basis for moisture exposure during laboratory testing. The freeze–thaw resistance of the sprayed concrete in tunnel linings under realistic moisture contents and

  • Moisture Transport Through Sprayed Concrete Tunnel Linings ...

    The investigation of the in situ moisture condition and possible moisture transport mechanisms through sprayed concrete tunnel linings are published in Holter and Geving (2015) which forms the ...

  • Waterproofing Sprayed Concrete Linings - Existing Methods ...

    Sprayed Concrete Tunnels are a popular solution to the increasing need for fast and efficient transport systems in urban environments worldwide. For shorter tunnels (less than 1km long) with varying geometry and junctions, the use of a sprayed concrete lining (SCL) is an efficient and cost-effective construction technique.

  • Moisture Transport Through Sprayed Concrete Tunnel Linings

    State-of-the-art sprayed concrete material applied with the wet mix method exhibits very low hydraulic conductivities, lower than 10−14 m/s, thus saturated conductive water flow is a very unlikely dominant transport mechanism. Moisture transport through the lining structure by capillary flow and vapor diffusion are calculated to approximately ...

  • [PDF] Performance of EVA-Based Membranes for SCL in Hard ...

    The bonded property of multi-layered sprayed concrete tunnel linings (SCL) waterproofed with sprayed membranes means that the constituent materials will be exposed to the groundwater without any draining or mechanically separating measures. Moisture properties of the sprayed concrete and membrane materials are therefore important in order to establish the system properties of such linings.

  • Studies of the Physical Properties of Hardened Portland ...

    Moisture Transport Through Sprayed Concrete Tunnel Linings. K. Holter, Stig Geving; Materials Science; Rock Mechanics and Rock Engineering; 2015; 19. Highly Influenced. View 5 excerpts, cites methods, background and results; Save. Alert. Research Feed. Porosity prediction of calcium phosphate cements based on chemical composition.

  • Fiber-Reinforced Sprayed Concrete as a Permanent Tunnel Lining

    Moisture transport through the lining structure by capillary flow and vapor diffusion are calculated to approximately 3 cm3/m2 per day for lining thicknesses in the range of 25–35 cm and ...

  • Stig Geving - NTNU

    (2016) Moisture Transport Through Sprayed Concrete Tunnel Linings. Rock Mechanics and Rock Engineering. vol. 49 (1). Geving, Stig; Lunde, Erik; Holme, Jonas. (2015) Laboratory investigations of moisture conditions in wood frame walls with wood ...

  • Freeze–thaw resistance of sprayed concrete in tunnel linings

    Aug 27, 2015· Freeze–thaw exposure of wet-mix sprayed concrete for permanent tunnel linings is characterized by thermal and moisture gradients between wet temperate rock mass/concrete and cold dry concrete/air surface. Hardened sprayed concrete with water/binder ratios in the range of 0.45–0.47 has been studied. The standard freeze/thaw tests like e.g. salt frost scaling according to CEN/TS …

  • Spray Applied Waterproofing Membranes | Products ...

    Moisture Transport Through Sprayed Concrete Tunnel Linings (2014) ITATECH harmonized best practice guidance for spray applied waterproof membranes . Crossrail – design and construction / Crossrail – Entwurf, Bemessung und Ausführung

  • Static response of double shell concrete lining with a ...

    Sep 01, 2017· Moisture transport through sprayed concrete tunnel linings Rock Mech. Rock Eng., 49 ( 2016 ), pp. 243 - 272, 10.1007/s00603-015-0730-1 …

  • LATTICE GIRDERS OFFER ECONOMY AND PERFORMANCE FOR TUNNEL ...

    In addition, the lining system prevents air and moisture penetration to the tunnel face. In applications of the lining system in German tunnelling construction, it was confirmed that improved tunnel stability resulted from penetration of the lining material into voids …

  • MSFRS tunnel linings - application example Adfil synthetic ...

    Typical end-uses of shotcrete include sprayed concrete tunnel linings. Following several tunnel fires in Europe, design engineers have had their minds firmly focused on how to prevent explosive spalling of concrete in tunnels. The phenomenon occurs when concrete is exposed to high temperatures such as those experienced during a hydrocarbon fire.

  • Sprayed Concrete -Properties, Materials and Applications ...

    The fluidity of sprayed concrete make them be sprayed in higher speed and volumes. After excavation, the tunnel linings or the retaining wall lining can be immediately sprayed with the lining mass. In the USA, walls that have a thickness of 1 m have been constructed …

  • Design of Sprayed Concrete Linings in Soft Ground─ A ...

    Mar 11, 2014· The use of Sprayed Concrete Lining is an established method of soft ground tunnelling using sprayed concrete to support the excavation both temporarily and permanently. Compared with other tunnelling methods, such as using a Tunnel Boring Machine (TBM), the biggest advantage of the SCL technique is it allows tunnels and junctions to be built at ...

  • Moisture Transport Through Sprayed Concrete Tunnel Linings ...

    Jan 01, 2016· Waterproofing of permanent sprayed concrete tunnel linings with sprayed membranes in a continuous sandwich structure has been attempted since 2000 and has seen increased use in some countries. The main function of a sprayed membrane from a waterproofing perspective is to provide crack bridging and hence prevent flow of liquid water into the tunnel through cracks and …

  • Stig Geving - Academia.edu

    Stig Geving studies Base Isolation, Buildings, and Masonry Buildings.

  • "Properties and function of permanent shotcrete linings ...

    The continuously bonded tunnel lining system based on sprayed concrete and sprayed waterproofing membrane (sprayed concrete lining, SCL) represents fundamentally different system properties compared to traditional and commonly used tunnel lining systems. This lining system has been investigated as a waterproof and permanent lining option for road and rail tunnels in Norway, and a …

  • Fire Protection for new and existing Underground ... - tunnel

    Consequently, the use of fibre modified concrete should be considered carefully for use in structurally reinforced concrete tunnel linings. Thermal Barriers as Passive Fire Protection Systems Thermal barriers are designed to be installed (spray applied, cast in-situ or even as prefabricated boards) as a shield to protect the structure from fire ...

  • Moisture Transport Through Sprayed Concrete Tunnel Linings ...

    Mar 11, 2015· 10%· Waterproofing of permanent sprayed concrete tunnel linings with sprayed membranes in a continuous sandwich structure has been attempted since 2000 and has seen increased use in some countries. The main function of a sprayed membrane from a waterproofing perspective is to provide crack bridging and hence prevent flow of liquid water into the tunnel through …

  • Karl HOLTER | Senior Specialist & Professor (Assistant ...

    Moisture Transport Through Sprayed Concrete Tunnel Linings ... Waterproofing of permanent sprayed concrete tunnel linings with sprayed membranes in a …

  • Concreto projetado para revestimentos definitivos em ...

    Holter, K. G. (2015) Properties of waterproof sprayed concrete tunnel linings. PhD thesis, Norwegian University of Technology and Science, Trondheim, ISBN: 978-82-326-1050-1. Holter, K. G.; Geving, S. (2016) Moisture transport through sprayed concrete tunnel linings. Rock Mechanics and Rock Engineering, Vol 49/1, pp 243-272. 52

  • Jiang SU | Technical Director | BEng, MPhil, PhD, CEng ...

    Spray-applied membranes for waterproofing of sprayed concrete tunnels have led to the possibility of shear transfer between primary and secondary linings through the membrane interface, with the ...