25-08-2017, 09:32 PM
FUNDAMENTAL STUDY FOR OPTIMUM SURFACE PROTECTION SYSTEM WITH SILANE TYPE WATER BARRIER PENETRANTS
FUNDAMENTAL STUDY FOR OPTIMUM .docx (Size: 14.47 KB / Downloads: 17)
ABSTRACT
In order to establish an optimum surface protection system for newly constructed concrete structures with silane type water barrier penetrants, fundamental experimental study was conducted for 2 water barrier penetrants which have shown good waterproofing performances in 5 years exposure test.
For 3 kinds of concrete mix proportions, such as W/C of 42%, 50%, 65%, the effects of age of concrete at the application of penetrants, and the effects of water supplying conditions before and after the application, on penetration depth and waterproofing performance were examined.
The age of concrete at the application of penetrants considerably affected penetration depth and waterproofing performace. If we make a point of waterproofing performance, water barrier penetrants should be applied in early age.
The water supplying conditions before and after the application considerably affected penetration depth and waterproofing performance. The effects were different according to W/C of concrete.
Based on experimental results, a direction of surface protection system with silane type penetrants was discussed.