Materials Performance is the world's most widely circulated magazine dedicated to corrosion prevention and control. MP provides information about the latest corrosion control technologies and practical applications for every industry and environment.
Estimating Costs for Cathodic
Protection Projects
Abdulla Fouad Impalloy, Ltd., Co. (AFIC), Dammam, Saudi Arabia MUHAMMAD ARSALAN KHAN SHERWANI,
Every engineering project has associated expenses, which are usually assessed by cost analysts and professionals in their respective fields. Cathodic protection is a specialized field of corrosion
engineering, and the respective technicians and engineers may not have the necessary cost estimating skills. It is essential that these professionals become familiar with the basic concepts of cost estimation and pricing.
24 MATERIALS PERFORMANCE April 2012
it is important to explore the exact scope of work, all associated activities related to the main job, the risk involved with each activity, safety measures, and all the re- quirements related to manpower, equip- ment and tools, materials, and utilities. Generally, cathodic protection (CP)
W
projects are part of a main installation where the infrastructure is new, or sepa- rate projects if the requirement is for maintenance or upgrading an existing CP system. This article discusses costing and pricing of CP projects. The methods and techniques used are common practices.
Scope of Work Development The best approach to extract the
proper and complete scope of work for cost estimation is to develop a work breakdown structure into the following categories.
Principal Scope This scope comprises the objects or
activities involved: mobilization, site preparation, pre-design surveys, design and engineering, material supply, instal- lations, inspections, commissioning, documentation, and demobilization.
Associated Scope The associated scope, a breakdown of
the principal scope, includes mobilizing manpower and equipment; establishing the site office, storage yard, and site camps; analyzing the pre-design survey; designing the various structures, zones, and areas; procurring materials; manu- facturing, assembly, and supply consid- erations; installing CP equipment; inspecting materials, equipment, and installations; and pre-commissioning, commissioning, and post-commissioning the system. It also includes documenta- tion of pre-job, during-job, and after-job
NACE International, Vol. 51, No. 4
hen planning a project, infor- mation about the work scope provided by clients is often imprecise or limited. Hence,