What are the differences between expenses and capitalist expenses? and what are the differences between maintenance and building assets?

Expense means company has utilizes the benefit of asset. Capitalize expense means company is using the benefit of asset with the passage of time. Both are totally different with each other. First one is totally used and got the benefit and other one is still in use. 

capital expenses is money spent by a business or organization on acquiring or maintaining fixed assets, such as land, buildings, and equipment.

while expense is used of assets to generate revenue 

expenses are outflow money that is paid in order to gain revenue , but i think capotalist expenses is like fiance and such