| Show I OX MaX MaXilia CL ilia Slate 0 1 I I IThe lionel J The tak School of Mince h hits Jut Just r rIll Ill nj bulletin This hiLa has for forit forI I it ba baste a saris of f t teat made on macadam m ro Toek he tested M be beIng 1 Ing adjacent t to 10 elt It Lak City TIM There ha been n some eom Ii the minde of If peep In Ike taw state as to the velu of uon IIa III of I tM the reds rd of nf macadam macadaan rock have bave II not t het Tbt ull Un le et that IbM k it I rot for a nt engineer to select t a first ret da rock teats tb bel being m mD med meda D a It to 10 I Its Ita wearing tUn toughness etc end that the CI of Mints I he hn portent ul t I cud the lot lna h hi sa eli u ag th the CoC ur for lbs I tint hul to 10 be bad ad have n I a 4 Th This ink I 1101 I Is a pert rt of the th regular teet t lite I Ill tor In the department fit of fitI I ea II L j u ha ben SIN pro red by br brI byU I F U H I d pro soy eor of iI engineering Mod nd I h A of Mechanical I T 1 III n t ti i a 1 t c lid an and Lbs tested J of wear Par ft tou r vi veilS ot of rock dust duat 11 1 fur ur weathering Tb ra I Ir vary sum Up UI to the standard set for a aI I I iid metals and others othera ta fatS ls 1111 flir fer being 1 III ral other kinds or of rock Sen 01 th t The litRe I n front frum nt quarries at aI I showing to rh Ike rs era are WIry in I hair haira a I e 55 road metals l This he bulletin also Ii stand standI 11 I 1 teits adopted by Us fi 1 Itt testing an and palate ul how the thi of tIM ta reck hul vary ar with the en tIM the ill 1101 as weM a at others wilt ti tie t te my anI who might It be In te lbs |
