Complex sentence: A concrete floor that has been hardened and polished will have an extremely long life expectancy compared to other flooring like tile that may only have 10-20years, the concrete finished floor properly maintained can expect 100 + years of service.
Split into simpler sentences: A concrete floor that has been hardened and polished will have an extremely long life expectancy compared to other flooring. For example, tile that may only last 10-20 years, but a polished concrete floor that has been properly maintained may give 100 + years of service.