Frequency will vary. 20-30+ years. After the initial build in any brick, block or stone building or structure the mortar will last quite a while. Especially if it has been maintained by way of spot tuckpointing and a quality masonry sealer is applied as often as necessary.
To become a CEO, you will most likely need a minimum of a bachelor's degree and an extensive amount of work experience in the industry that you want to work in.You'll also need managerial experience.he Master of Business Administration (MBA) can be helpful for becoming a top executive within a large corporation. MBA programs often contain an internship or capstone project, which can provide much-needed work experience.
Ideally, you should learn the fundamentals of how to to do that in your classes however most colleges seemed to be focused on churning out middle managers than people who can actually make things happen. Here's what you should learn in a typical business degree program: Financial Accounting - making sure you're tracking income and expenses correctly, being able to read and understand an income statement, balance sheet, and cash flow statement.