surface preparation Articles
-
Humidur applied on sweating lines - Case study
Humidur® is applied on sweating lines. Even though the surface is not dry and therefore does not meet the standard specifications, Humidur gives excellent results on these kind of surfaces. The surface preparation remains the same, but during the application a small area is wiped down with an absorbing cloth and coated immediately after. This procedure is repeated until the whole surface is ...
By Acotec NV
-
Copper oxide shape effect in CeO 2 /Cu 2 O catalysts for PROX reaction
Cubic and octahedral Cu 2 O nanocrystals were used as supports for ceria deposition. Ceria tended to deposit on the vertexes and edges of the nanocrystals more. Whisker type of ceria was deposited on Cu 2 O surface. The prepared CeO 2 /Cu 2 O composite materials were tested as catalysts for preferential oxidation (PROX) reaction of CO in the presence of abundant H 2 . As the amount of ...
-
Clark County Water Reclamation - Case Study
Project: Clark County Water Reclamation District Primary Clarifiers 13 & 14 Project Location: Las Vegas, NV Owner: Clark County Water Reclamation District – Main Treatment Plant Engineer: Black & Veatch Corp. General Contractor: MMC Contracting Corp. Applicator: Bryan Painting and Decorating Sauereisen Representative: Mike Keating, J. A. CRAWFORD CO. Products: No. 209HB Filler ...
-
Project - High Level Concrete Tower
High Level Concrete Water Tower The high level drinking water storage reservoir within the top of the water tower, underwent a full internal refurbishment in 2017. After removal of the existing failed waterproofing system and surface preparation to the concrete walls and floors, all expansion joints were sealed using a joint overbanding system, and all concrete surfaces received a cementitious ...
-
Dry and wet methods of silicon dioxide surface functionalisation with 3–aminopropyl trimethoxysilane: application to fullerene C
60anchoringIn this work, we have studied the formation of self–assembled monolayers (SAM) of 3–aminopropyltrimethoxysilane (APTMS), chemically bound to silicon dioxide surface, prepared using a deposition from both solution and a new solvent–free process, using contact angle measurements, ellipsometry, ATR–FTIR spectroscopy and AFM imaging. In the first part, we have analysed the grafting kinetics of APTMS ...
-
Humidur AF on bar screen of Taean power plant - Korea - Case study
The bar screen at the cool water intake of the Taean #6 power plant in South Korea suffers from heavy fouling. Once a year, divers remove the fouling manually. To avoid this costly operation, Humidur® AF has been applied as anti-fouling system. Humidur® AF protects structures years against fouling. First, the surface was prepared by means of waterjetting WJ-2M. Then a layer of ...
By Acotec NV
-
Morton-in-Marsh The Fire Service College - Case Study
Urban Search & Rescue Training Centre In 2004 Concept Smoke Systems were commissioned to come up with the design and installation of a smoke distribution system for the Urban Search and Rescue facility at the Fire Service College. The extensive, primarily external facility is designed to be representative of a scenario after an urban building collapse, and, depending on training scenario ...
-
Protective Coatings
Coatings An industrial coatings is a paint or coating defined by its protective, rather than its aesthetic properties, although it can provide both.The most common use of industrial coatings is for corrosion control of steel or concrete. Other functions include intumescent coatings for fire resistance. The most common polymers used in industrial coatings are polyurethane, epoxy and moisture ...
-
Lining project restores wastewater treatment clarifiers
When tasked with restoring 14 concrete clarificrs, important structures in the wastewater treatment process, the Clark Count)' Water Reclamation District (CCWRD) faced several challenges such as airborne dust, hot and arid conditions, the implementation of a system mockup and an emphasis on in-field quality control. The project's specifications, prepared by Black and Veatch, required the ...
-
Carbon nanotube–polyurethane nanocomposites for structural vibration damping
Nanotechnology is an area which has vast potentials for turning fundamental research into successful innovations. In the present paper, damping in Polyurethane (PU)–Multiwalled carbon nanotube (MWNT) nanocomposites is studied by Dynamic Mechanical Analysis (DMA) and Free Layer Damping (FLD) methods. MWNT is functionalised using HNO3/H2SO4 mixture, thionyl chloride and ethylene diamine to ...
-
Development of a sealing material and robot for automatic socket rehabilitation of grey cast iron pipes in drinking water supply systems
The project DeWaLoP, led by Vienna Water, aims to develop a robot that is able to apply a sealing system to repair the joint sockets of pressure operating water pipes measuring about 1 m in diameter. To do this, a modification of the sealing material for inner surface application will be developed and a complex robot system will be designed to perform various tasks, such as inspecting, cleaning ...
-
Edge Plating/Half-hole PCB
Half hole pcb The walls of the PTH holes on the PCB are plated with Half-hole formed by smooth and complete metal forming.The Half hole process on the edge of the board is already a mature process in PCBSKY PCB manufacturing processing. How to control the quality of the product after forming the Half-hole on the edge of the board. For example, the copper spurs of the hole wall and the residue ...
-
Diamondhead, MS - 500,000 Gallon Torus Bottom Elevated Tank
The Village of Diamondhead, MS was very fortunate to have received a high quality paint job when their tank was first constructed in 1976. In 2009 when Caldwell was selected to perform the work on this project, the original paint system was still in place on the exterior of the tank, with only overcoats having been applied on top of it. However, the years had taken their toll and the lead primer ...
-
Electrodialysis heterogeneous ion exchange membranes modified by SiO2 nanoparticles: fabrication and electrochemical characterization
In the current study mixed matrix heterogeneous cation exchange membranes were prepared by solution casting technique. The effect of SiO2 nanoparticles in the polymeric solution on the physicochemical properties of prepared membranes was studied. Scanning optical microscope images showed uniform particle distribution and relatively uniform surfaces for the prepared membranes. The membrane ...
-
Enhanced photocatalytic degradation of atrazine by platinized titanium dioxide under 352 nm irradiation
Simply coating 1 wt.% of platinum on titanium dioxide (TiO2) surface resulted in simple preparation of platinized TiO2 (Pt-TiO2). This study demonstrated the photodegradation of atrazine (ATZ) using either Pt-TiO2 or TiO2 as a photocatalyst under 352 nm light irradiation. The Pt-TiO2-catalyzed ATZ degradation reached 76% in 3 hours without adding H2O2 solution or aeration, which was more than ...
-
MCI®-2020 Gel: A Deep-Reaching Solution for Corroding Rebar
Mitigating corrosion of embedded rebar is a perennial problem for reinforced concrete structures, requiring preventative maintenance and repair. Topical corrosion inhibiting treatments require a clean, properly prepared surface area to work as intended. Cortec’s MCI®-2020 Gel is designed to work when proper surface preparation cannot be achieved or is economically undesirable, by ...
-
DUST/BLOKR receives certification from BOEING following stringent testing - Case Study
After a rigorous set of tests performed by Scientific Material International, the industry leader of aerospace materials testing, DUST/BLOKR® received certification for conforming to BOEING D6-17487 REVISION T. This certification provides assurance that DUST/BLOKR® has no harmful effects when introduced to sensitive aircraft materials, deeming it worthy of aircraft runways and service ...
-
Dustless Blasting vs Wet Ice & Dry Ice Blasting
Dustless blasting is another method used to strip paint, remove rust, graffiti, and/or prepare surfaces for refinishing. It comes with its own inherit pros & cons that have to be considered before you make a decision on which surface cleaning technology you choose. To keep this simple we’re going to describe each technology in very basic terms and provide links so you can dive deep on ...
-
Bi-amino surface functionalized polyoxometalate nanocomposite as an environmentally friendly catalyst: synthesis and dye degradation
In this paper, cobalt ferrite magnetic nanoparticle was modified by N-(2-aminoethyl)-3-(trimethoxysilyl) propyl amine. Polyoxometalate was immobilized on the modified bi-amino surface functionalized nanoparticle to prepare the environmentally friendly catalyst nanoparticle (EFCN). The synthesized EFCN was characterized using Fourier transform infrared, scanning electron microscopy and X-ray ...
-
Rust Vanquishers: Top 10 Methods to Cleanse Steel Beams
Steel beams are indispensable components in the construction industry, known for their exceptional strength, durability, and versatility. However, prolonged exposure to moisture and environmental elements can lead to the development of rust on these crucial structural elements. Rust compromises the integrity and aesthetics of steel beams, making proper maintenance and rust removal essential to ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you