Specialist Repair & Construction Products:

Transcription

1 Specialist Repair & Construction Products: An overview highlighting SRCP s range of Sacrificial & Impressed Current Anodes, Monitoring equipment and Zinc Tape. t: (08) e: f.papworth@srcp.com.au w: srcp.com.au PO Box 2111 Clarkson WA 6030

2 Zinc Layer Anode applied to the soffit of a balcony, with a decorative coating.

3 Zinc Layer Anode Sacrificial Anode Cathodic Protection Technical Data Weight 3350 kg/m3 Zinc 1760 kg/m3 Adhesive 1440 kg/m3 Paper 150 kg/m3 Zinc 99.9% pure Conductive gel resisitivity<10,000ohm cm Allowable temperatures Storage < 40C Avg. Operations 4 to 50 C Short term -40 to 70 C Maximum electrical capacity 0.13 Amps/yr/m2 Roll width: 25cm Roll Length: 25m Roll Surface Area:6.25m2 Packed 15 Rolls/box Zinc Layer Anode is zinc sheet backed with activator paste, adhesive and a backing sheet. Applied to a concrete surface it provides sacrificial galvanic cathodic protection to actively corroding reinforcement. Manufactured by corrpre Engineering in Italy The simplest CP system ever. 3 5 Galvanic anode systems are much simpler than impressed current systems and the ZLA system is 4 particularly simple. In the best case scenario simply clean the surface, pull of the ZLA backing tape, press the anode to the concrete surface and connect the ZLA to the reinforcement Junction box if protection checking required Zinc connection is tack welded Rebar connection Connection between rebar layers if protecting both faces ERE 20 MnO 2 Half cell Zinc with adhesive & inhibitor

4 Roll Anode Sacrificial Anode Cathodic Protection Technical Data - Roll Anodes 24pcs/Box Std length 25mm diameter +5% 10gm/cm length 11cm long Std length Max length 1m Technical Data - Zinc Activator Paste (ZAP) 12x600ml cartridges/box Advantages Simple and easy installation Offers sufficient current in dry environment Complys with and EN criteria No risk to prestressing No external power source needed Rolled zinc sheet for insertion into drilled holes, which are then filled with Zinc Activator Paste (ZAP) to give a precise and easy location of anodes within sound concrete where reinforcement is corroding. With a connection to the reinforcement provides galvanic cathodic protection to reinforcement. Concrete electrolyte with pores and pore solution OH - Cl - Cl - Zn 2+ Zn 2+ OH - OH - Zinc Electrolyte Gel A simply applied internal anode system. The Roll Anodes enable the precise location of anodes for a particularly simple internal anode system. In the bestcase scenario simply drill holes, insert the O 2 +2H 2 O+4e 4OH - 2e - Roll Anode, fill with activator paste and connect to the reinforcement.

5 GSC Super Anode Sacrificial Anode Cathodic Protection Technical Data GSC 10/10 100mmx55mmx12mm GSC 10/20 100mmx55mmx15mm GSC 30/10 300mmx50mmx10mm GSC 30/10 300mmx50mmx12mm Packing GSC 30/10 & 30/20 12pcs/Carton GSC 10/10 & 10/20 24pcs/Carton Storage Shelf Life (nominal): 12months Preferably temperature <30 C & RH<50% Installation Remove cracked and delaminated concrete Tie on anodes and check electrical continuity Reinstate with conventional patch materials GSC Super Anodes are specifically designed to cathodically protect reinforcement in concrete. The anodes are embedded within the repair concrete or mortar and are electrically connected to the reinforcement. They are perfect for the localised patching of corrosion induced damage. I c -300mv Chloride contamination remains No more hard breakout. Professional long lasting repairs at GSC Super Anodes -550mv Rebar connection Break out without corrpre anode a fraction of the cost. Providing full cathodic protection using GSC Super Anodes eliminates the need for expensive -350mv Patch spalled concrete. No need to remove sound but contaminated concrete breakout of hard, sound but contaminated concrete.

6 5.5km of Cassette Ribbon Anode installed on the Silver Jubilee Bridge,England.

7 Cassette Impressed Current Cathodic Protection Technical Data Fibre glass cassette Elgard 150 ribbon rated at 5.28mA/m Cassettes with double ribbon at 400mm centres = 5 x 5.28 = 26.4mA/m2 Fibre Glass Plate 80x80x9.5mm with 18mm diameter central hole 22mm long Glass Fibre Nut/washer ½ ø 100mm long Glass FibreStud Glasswool contact pad Installation 400mm centres max 15mm diameter hole drilled in concrete Apply Nutriox (supplied) to glasswool pad Fill hole with polyester resin, e.g. Ramset Chemset 101 or similar Secure cassette using fibre glass bolt / washer Cassette is a ribbon anode impressed current cathodic protection (ICCP) system. Instead of burying the ribbon anode in the concrete it is mounted in an inert panel with a felt pad to spread the current from the ribbon to the concrete surface. 10mm Stainless Steel Bolt Isolating Washer 80x80mm HDG Washer Inert Fibreglass Panel Glasswool Contact Pad Elgard 150 Ribbon Anode Cassette Dimensions 100mm 85mm 11mm 3mm 13mm Limited access or wet conditions? All components of the system are resistant to corrosion and hence the system can be used in corrosive environements such as the underside of wharf decks. The system is easy to use in restricted or confined spaces as it is located on the surface of the concrete. 85mm

8 Zebra Impressed Current Cathodic Protection Advantages Restoration work completed 30-40% faster Repairs are significantly cheaper Shorter closures of structures No need for high-pressure water jetting No need to remove large amounts of concrete Web based monitoring Proven technology Zebra is a conductive paint impressed current cathodic protection (ICCP) system for the repair of concrete structures. Employing conductive ZEBRA paint and connecting the steel reinforcement to the protective circuit puts a stop to concrete corrosion. A new generation of water based conductive paint anodes is now available. Now it is simple to design and install a web based monitoring & control system so there is no need to go to site for testing.

9 CorroDisc Impressed Current Cathodic Protection Advantages Easy economic installation with grinding, drilling or embedding Natural gas venting - The microcrystalline structure of silicates has a pore size that allows the free passage of water vapour and oxygen Longevity - The insoluble silicates formed in the chemical reaction are resistant to strong acid attack Ample protection - Satisfies the 100mV criteria for effective cathodic protection according the international standard ISO12696 Convenient pilot testing - easily apply and displace each individual Corrodisc anode to analyse the effects of steel polarisation Flexible anode placement. A MMO-coated titanium electrode pre-casted in an acid resistant cementitious mortar with ion conductive adhesive backing. Place the anodes as required to reach otherwise unaccessable areas. Type 125 R D1 Form Solid mortar disc with Solid mortar rectangle Solid mortar narrow self-adhesive ionically with self-adhesive ionically cylinder inserted in hole & conductive backing conductive backing surrounded by ZAP paste of mineral grout Application Surface mounted Surface mounted Embedded in drilled holes Size 125mm dia. x 12mm thick 400x60x15mm thick 120mm longx16mm diameter Mechanical fixing Central 6mm diameter 6mm diameter plastic None plastic fitting fitting at each end Weight 250gm 500gm 50gm MMO titanium type Expanded mesh Expanded mesh Expanded mesh Mesh area connections 113cm2 190cm2 18cm2 1mm dia. x 50mm insulated 1mm dia. x 50mm insulated 1mm dia. x 50mm insulated Ti wire on opposite sides Ti wire on opposite sides Ti wire on opposite sides Expected life 100yrs at 5mA/anode 100yrs at 8mA/anode 100yrs at 8mA/anode 50yrs at 10mA/anode 50yrs at 16mA/anode 50yrs at 16mA/anode 30yrs at 16mA/anode 30yrs at 26mA/anode 30yrs at 26mA/anode

10 Pipe being wrapped with Zinc Tape using the specially designed applicator.

11 Zinc Tape Steel Corrosion Protection METALNASTRI ANTICORROSION SYSTEMS Technical Data 0.08mm thick layer of 99.99% pure Zinc 0.025mm layer of conductive adhesive 20,70, 100,120, 150 and 300mm widths Can be used at continuous temperatures of 80 C Meta Wrappers are available in 3 sizes to cover any pipe diameters in the range mm Installation Prepare surface - wire brush or blasting Press tape down firmly Use metawrapper for pipes Use metapress for tanks / poles The conductive adhesive, which contains Zinc powder and ensures conductivity over the entire steel element, along with the ease of application to structures insitu sets Metalnastri s Zinc Tape apart from other tape coatings for corrosion protection Better than hot dipped galvanising. Zinc Tape is a versatile and easily applied Zinc Point of contact covered by conductive adhesive Steel to be protected Zinc particles provide consistent conductivity corrosion control coating system that can be applied insitu to provide the equivalent or better corrosion protection than hot dipped galvanising (HDG). Specialist equipment makes its application rapid and consistent.

12 A wall mounted control box of a Camur II system, Norway.

13 Camur II CP Control System The Camur II System Components The Camur II controller Bus interface WLink nodes CM2 continuity tester Fix volt & transformer P-Node Software Camur II Project Manager Camur II Server Apply Nutriox (supplied) to glasswool pad Camur II Web Server Camur II is a distributed data logger system designed for measurements in concrete. It is a scalable system. You will find cost-effective solutions for systems with few sensors installed in a small area or systems with hundreds of sensors spread over several hundred meters. Multiple projects. All remotely monitored. The Camur II software shows the project groundbeds each with power supply information and monitoring data. Based on the client instructions the Camur II To view an animated online demonstration please visit: srcp.com.au/camur-ii-cathodic-protection-control-system Controller collects and transmits data and controls each groundbed. Data is stored within the controller and transmitted to user computers on request.

14 t: (08) e: w: srcp.com.au PO Box 2111 Clarkson WA 6030