scholarly journals Study of the effect of surface treatment on the long term effectiveness of tissue conditioner

2010 ◽  
Vol 52 (2) ◽  
pp. 261-265 ◽  
Author(s):  
Kamleshwar Singh ◽  
Pooran Chand ◽  
Balendra P. Singh ◽  
Chandra B. S. Patel
Keyword(s):  
Surface Treatment ◽  
Tissue Conditioner ◽  
Effect Of Surface

EFFECT OF SURFACE-PENETRANTS FOR CONCRETE UNDER FREEZE-THAW CYCLES

2020 ◽  
Vol 7 (2) ◽  
Author(s):  
Masayuki Sayama ◽  
Shoichi Sayama ◽  
Koji Mitani ◽  
Liangjun Hu ◽  
Isamu Yoshitake
Keyword(s):  
Surface Treatment ◽  
Water Pressure ◽  
High Water ◽  
Penetration Resistance ◽  
Freezing And Thawing ◽  
Rc Structures ◽  
Saturated Concrete ◽  
Gas Penetration ◽  
Effect Of Surface

Reinforced concrete (RC) structures are generally deteriorated by penetration of water and gases that induce corrosion of reinforcements. Surface-penetrants, which increase gas-penetration resistance of concrete, can improve the long-term durability of RC members. A kind of surface-treatment, such as silane penetrants, gives a high water-repellant effect to concrete. It is well known that concrete in cold regions is occasionally damaged by freezing and thawing (F-T) cycles. In a microscopic viewpoint, water-pressure in pore structures of concrete increases due to freezing. The increase of internal water pressure may be a cause of the F-T damage of concrete. It is possibly hard to ease the water-pressure in saturated concrete incorporating the water-repellant penetrant. That is, the surface-treated concrete under the F-T cycles may deteriorate seriously. To examine the effect of surface-treatment, the study conducted the F-T test (JIS A 1148) by using concrete that was painted with surface-penetrants. The foci of this investigation are to examine the F-T durability of surface-treated concretes and to compare the effect of the surface-penetrants. This paper reports the effects of the water-repellant penetrant on the F-T durability.

scholarly journals Improving Restorative Maintenance Practices for Mature Permeable Interlocking Concrete Pavements

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1588 ◽  
Author(s):  
Kirti Sehgal ◽  
Jennifer Drake ◽  
Tim Seters ◽  
William Vander Linden
Keyword(s):  
Surface Treatment ◽  
Low Impact Development ◽  
Surface Treatments ◽  
Concrete Pavements ◽  
Infiltration Capacity ◽  
Parking Lot ◽  
Treatment Technologies ◽  
Over Time ◽  
Effect Of Surface

Permeable Interlocking Concrete Pavements (PICP) are a Low Impact Development (LID) technology that reduce the total volume of stormwater discharge and peak flows from urban hardscapes. Over time, particulates accumulate in the PICP joints, decreasing the pavement’s surface infiltration capacity and negatively affecting its overall functionality. Maintenance with two surface treatment technologies, a hand-held power brush and pressure washer-used in combination with vacuum street sweepers were compared to maintenance with vacuum street sweepers alone at four PICP parking lots. Both surface treatments along with vacuum street sweeping significantly improved the restoration of infiltration capacity for the young (i.e., <4 years) PICP section. Pressure washing in combination with vacuum sweeping was effective for PICP sections with larger (13–14 mm) joint openings. Power brushing, however, provided inconsistent results between the PICP sections. The effect of surface treatments was not significant for older (i.e., >6 years) installations with small (3–4 mm) joint openings. Though surface treatment resulted in significant improvement with a pressure washer and vacuum street sweeper combination, usage intensity of the parking lot was deemed as an important factor in restoring infiltration capacity. These findings re-emphasize that regular maintenance is essential to ensure long-term hydraulic functionality of PICP.

scholarly journals Effect of surface treatments on push-out bond strength of calcium silicate-based cements to fiber posts

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Amr M. Elnaghy ◽  
Ayman Mandorah ◽  
Ali H. Hassan ◽  
Alaa Elshazli ◽  
Shaymaa Elsaka
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Glass Fiber ◽  
Calcium Silicate ◽  
Surface Treatments ◽  
The Other ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Push Out ◽  
Effect Of Surface

Abstract Background To evaluate the effect of surface treatments on the push-out bond strength of Biodentine (BD) and white mineral trioxide aggregate (WMTA) to fiber posts. Methods Two brands of fiber posts were used: Reblida post; RP and RelyX post; RX. Each type of post (n = 80/group) was divided into four groups (n = 20/group) and exposed to surface treatment as follows: Control (no treatment), sandblasting (SB), hydrofluoric acid (HF), and TiF4 4 wt/v%. Each group was further subdivided into two subgroups (n = 10/subgroup) based on the type of CSCs used as follows: Subgroup A: BD and Subgroup B: WMTA. Push-out bond strength of BD and WMTA to glass fiber posts was assessed. Data were statistically analyzed using three-way ANOVA and Tukey’s test. A Weibull analysis was performed on the push-out bond strength data. Results BD showed higher bond strength than WMTA (P < 0.001). The push-out bond strength for posts treated with TiF4 4 wt/v% showed greater bond strength than the other surface treatments (P < 0.05). The BD/RP-TiF4 4 wt/v% showed the greater characteristic bond strength (σ0) (15.93) compared with the other groups. Surface treatments modified the surface topography of glass fiber posts. Conclusions The BD/RP-TiF4 4 wt/v% showed greater bond strength compared with the other groups. The TiF4 4 wt/v% surface treatment enhanced the bond strength of BD and WMTA to glass fiber posts than the other treatments. Surface treatment of fiber post with TiF4 4 wt/v% could be used to improve the bond strength with calcium silicate-based cements.

scholarly journals Repair bond strength of composite: Effect of surface treatment and type of composite

2018 ◽  
pp. 0-0
Author(s):  
M Ghavam ◽  
M Naeemi ◽  
SS Hashemikamangar ◽  
H Ebrahimi ◽  
MJ Kharazifard
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Composite Effect ◽  
Effect Of Surface
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