Fig. 1. Schematics of waterproofing composite structure with shotcrete (Holter, 2015)
Fig. 2. Shore A hardness for the sprayable waterproofing membrane
Fig. 3. Direct tensile strengths of the waterproofing membrane by curing time
Fig. 4. Elongation at break (%) of the waterproofing membrane by curing time
Fig. 5. Direct tensile strengths of the waterproofing membrane and TSLs at different curing ages (Chang et al., 2016)
Fig. 6. Elongation at break of the waterproofing membrane and TSLs at different curing ages (Chang et al., 2016)
Fig. 7. Dollies detached after pull-off tests (Day 28)
Fig. 8. Average bond strengths of the waterproofing membrane at different curing ages
Fig. 9. Setup for TSL Linear Block Support Test (EFNARC, 2008)
Fig. 10. TSL Gap Shear Load Test (EFNARC, 2008)
Fig. 11. LBS test (left) and GSL test (right) of waterproofing membrane-coated specimens (7 days)
Fig. 12. LBS test (left) and GSL test (right) results of waterproofing membrane-coated specimens
Fig. 12. LBS test (left) and GSL test (right) results of waterproofing membrane-coated specimens (Continued)
Table 1. Essential properties of a sprayable waterproofing membrane (ITAtech, 2013)
Table 2. Mixing Conditions of powder components for a sprayable waterproofing membrane
Table 3. EFNARC (2008) criteria on TSL (Chang et al., 2016)
참고문헌
- ASTM (2010), Standard Test Method for Tensile Properties of Plastics, ASTM International, D638, West Conshohocken, PA.
- 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, West Conshohocken, PA.
- BS EN 1542 (1999), Products and systems for the protection and repair of concrete structures - Test methods - Measurement of bound strength by pull-off, British Standards Institution, London (UK).
- BS EN 1766 (2000), Products and systems for the protection and repair of concrete structures. Test methods. Reference concretes for testing, British Standards Institution, London (UK).
- BS EN 12390-8 (2009), Testing hardened concrete. Part 8: Depth of penetration of water under pressure, British Standards Institution, London (UK).
- Chang, S-H., Kang, T-H., Choi, S-W., Lee, C., Hwang, G-S. and Choi, M-S. (2016), "An Experiment Study on Fundamental Properties of a Sprayable Waterproofing Membrane", Tunnel & Underground Space, Vol.26, No.3, pp.220-234. (in Korean) https://doi.org/10.7474/TUS.2016.26.3.220
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