MODERN ROADS.

Auckland Star, Volume LV, Issue 172, 22 July 1924, Page 13

MODERN ROADS.

CONCRETE THE BEST. j . I to t n r 5t ? iia ° lo , val governmeat engi-1 '. & L - S, W - Go 'dsworthv, of U,e j ' Orwell (Melbourne) Council is a | £»g« by the Makura on his return ■* after a trip to America to study fcawt modern methods of road conand labour saving. He found «in America the concrete road, with fetaaous surface, was considered the ' jjUat in favour being the plain • j Usts ™th heavy motor ! £l°H TCr T^ iOUS kinds of «■* had f 5.t c t m States, and these gave J J?. 1 of the best weanng SFS;- . Tt , was folmd that rubber - vebcles did not wear concrete to ' £ appreciable extent, but that steel destnicth -e. Roads not , •Btaufcd of concrete fared very badly < B«Lt draStic U-Sts ' and th "c engf- . tors pronounced in favour of concrete, -' the desi S" s and specificaJ" of the roads. It was found that tSI COnCrete Was laid of uniform Z S ! or tlle Sreat depth at ILConV hc -r isht of traac was ™»n on the sides of the road, causfefnr C T re , te t0 s P Ht there - « was S r + v d r ded t? lfl y the concr ete r^ ch f of sis inches in the and eight or nine inches at the fein fh*" aU ° dedded to have a C£ 1 ce f tre of the road and to Zα t ? e } c m Bllorter lengthn-of ?* twenty feet. Reinforced concrete • tt de fi ded a^ain?t . and it was c best plan was to mix i »«merete as dry as possible and to LI dr y as slowly as possible. In tlfc" d , to increase the dr. 0 SIX or oißht inches . an(l SL » n top of two or three Sdte'i, ad i ed , thG r ««lt was confcU i best possible road - CluZ ° ot carr heavy traffic macadum surface, treated with ««n, was considered sati ß factorv, Doted f Dr^ tions bein R particularly "roads through parks. onstruction m most of the state 3 »lS Petr ° l t3X ° f two cents t Car re " istrati °n fee iollar, n° Cases only about three ttttS «. Was conside red the fairest Inn mJs Car UsiDR the roads most st Wl,en in AmeTica S ? Uare feet of concrete, . LDes 'hick, m ten hours.