The Maintenance of Macadamised RoadsE. & F.N. Spon, 1879 - 172 páginas |
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advantage amount appears attention average better binding bottom breaking broken stone carried cause cent charge circumstances cloth coating condition considerable considered consolidated constant contain cost cube yards damage detritus diameter district ditches drainage drains economy effect employed Engineers expenditure expense experiments feet foundation give given gravel greater hand hard heavy highway horses inches inches thick increased keep labour laid land latter length less limestone load machine main roads maintained maintenance materials measured metalling mile nature necessary ordinary pass places practice prevent proper proportion quantity quantity of materials removed repairs result road road materials road-coating roller rolling scraping side side channels solid sometimes spread square yards steam strength subsoil sufficient surface surveyor taken thickness tires tons traffic turnpike vehicles waste water-tables wear weather weight wheels whole wide width
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