its not really irrelevant if your asking how much they have...

its not really irrelevant if your asking how much they have invested in the company... riding the coat tails of overly optimistic investors and give yourself shares hardly gives me confidence.. i'm a civil/structural engineer and i project manage major road construction projects and consult with mix designers for approvals for every project. it would depend on whether any of the pavements are concrete but assuming no concrete pavements (concrete pavements are only economical in exceptional circumstances) based on australia the concrete supply would only be $10-$20m. cement would be much less than this you can work back from $200/m3 and 400kg cement/m3 if your that keen for an approx. number...