TY - JOUR
T1 - Characteristics of high power diode laser removal of multilayer chlorinated rubber coatings from concrete surfaces
AU - Schmidt, M.J.J.
AU - Li, L.
AU - Spencer, J.T.
PY - 1999
Y1 - 1999
N2 - This paper reports the technical feasibility and process characteristics of removing chlorinated rubber (CR) coatings from concrete surfaces utilising a 60 W continuous wave (cw) diode laser operating at 810 nm wavelength. Coating layers of various thickness have been removed under an oxygen shroud-gas, as well as Ar and N2. Optical microscopy and energy dispersive analysis of X-rays (EDX) have been utilised to verify this. The reflectivity properties of the CR material from the visible to the near infrared wavelengths, as well as their behaviour under high temperatures have been examined with a normal incidence spectrometer and a differential thermal analysis/thermal gravimetric analysis (DTA/TGA) system. The resulting drop in reflectivity explains the possibility of sustaining the combustion, even though the reflection coefficient of white CR at 810 nm is almost 100%.
AB - This paper reports the technical feasibility and process characteristics of removing chlorinated rubber (CR) coatings from concrete surfaces utilising a 60 W continuous wave (cw) diode laser operating at 810 nm wavelength. Coating layers of various thickness have been removed under an oxygen shroud-gas, as well as Ar and N2. Optical microscopy and energy dispersive analysis of X-rays (EDX) have been utilised to verify this. The reflectivity properties of the CR material from the visible to the near infrared wavelengths, as well as their behaviour under high temperatures have been examined with a normal incidence spectrometer and a differential thermal analysis/thermal gravimetric analysis (DTA/TGA) system. The resulting drop in reflectivity explains the possibility of sustaining the combustion, even though the reflection coefficient of white CR at 810 nm is almost 100%.
UR - https://www.scopus.com/pages/publications/0033100638
U2 - 10.1016/S0030-3992(99)00040-7
DO - 10.1016/S0030-3992(99)00040-7
M3 - Article
SN - 0030-3992
VL - 31
SP - 171
EP - 180
JO - Optics and Laser Technology
JF - Optics and Laser Technology
IS - 2
ER -