▁ ▁Ed ison ▁was ▁developing ▁an ▁iron ▁ore ▁mill ing ▁process ▁and ▁discovered ▁a ▁market ▁in ▁the ▁sale ▁of ▁waste ▁sand ▁to ▁c ement ▁manufact ur ers . ▁ ▁He ▁decided ▁to ▁set ▁up ▁his ▁own ▁c ement ▁company , ▁found ing ▁it ▁in ▁New ▁Village , ▁New ▁Jersey ▁in ▁ 1 8 9 9 , ▁and ▁went ▁on ▁to ▁supply ▁the ▁concrete ▁for ▁the ▁construction ▁of ▁Yan kee ▁Stadium ▁in ▁ 1 9 2 2 . ▁ ▁Begin nings ▁In ▁ 1 8 8 1 ▁Ed ison ▁formed ▁the ▁Ed ison ▁O re - M illing ▁Company ▁and ▁tried ▁for ▁many ▁years ▁to ▁make ▁that ▁business ▁a ▁success . ▁ ▁The ▁demand ▁was ▁not ▁exist ant , ▁though ▁new ▁techn ological ▁innov ations ▁that ▁Ed ison ▁brought ▁to ▁the ▁industry ▁the ▁company ▁could ▁not ▁comp ete ▁with ▁operations ▁in ▁the ▁Mid west . ▁ ▁Despite ▁contin ual ▁invest ment , ▁with ▁Ed ison ▁s elling ▁shares ▁in ▁General ▁Electric , ▁the ▁company ▁suffered ▁huge ▁losses . ▁Event ually , ▁the ▁ore - cr ushing ▁technology ▁was ▁sold ▁to ▁other ▁mine ▁own ers . ▁ ▁The ▁manufact uring ▁process ▁used ▁by ▁the ▁Ed ison ▁O re - M illing ▁Company ▁produced ▁a ▁large ▁quantity ▁of ▁waste ▁sand ▁which ▁he ▁would ▁sell ▁to ▁c ement ▁manufact ur ers . ▁ ▁The ▁properties ▁of ▁the ▁fine ▁sand ▁were ▁particularly ▁suitable ▁for ▁concrete , ▁leading ▁to ▁a ▁harder , ▁more ▁dur able ▁product . ▁ ▁In ▁ 1 8 9 9 , ▁Ed ison ▁decided ▁to