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2014SumShotcreteEMag

Another option is the use of Type 2 anodes. or where low cover is present. If the use of Type In this case, holes for the anodes are drilled 1 anodes with embedding mortar is acceptable around or adjacent to the repair. In some to the designer, this process would be preferred, instances, using Type 2 anodes may be preferred as it is considerably less labor-intensive. for repairs where concrete removal behind the As mentioned previously, the use of embed- reinforcing steel is limited for structural reasons ding mortar to create a conductive bridge between the anode and the parent concrete allows anodes to be used with higher resistivity repair materials and to prevent the risk of shadowing behind the anode. If a shotcrete material with resistivity below 15,000 ohm-cm is used, it still may be preferred to use the embedding mortar to prevent shadowing. If embedding mortar is not used, it is recom- mended to install the anode such that the flat side faces the steel. This process reduces the cross- sectional area of the anode facing the nozzleman and can be helpful in minimizing any shadowing which may occur. Another option would be to use thin, elongated anodes that fit nicely beside the reinforcing steel. Summary The use of embedded galvanic anodes in Fig. 7: Type 2 anode repairs completed with dry spray shotcrete shotcrete repairs provides an added level of Gary Carlson Equipment Rental Allentown Shotcrete Shotcrete PumpsrPutzmiestePumps and Guns Your trusted source for wet and dry shotcrete equipment is fully stocked for both rental and sales ***National Service*** Chemgrout Mixers Pumps and Plants Sullivan Air Compressors Gary Carlson Equipment Co. and Tools Rentals - Sales - Service - Delivery Colidal Mixers 1380 County Rd C West, Roseville MN Reed Shotcrete Systems Pumps 10720 Mankato St., Blaine MN and Guns Phone 763.792.9123 18 Shotcrete • Summer 2014


2014SumShotcreteEMag
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