OCR Text |
Show Flrct Paved Road ; sia is said 10 he the first country where wood blocks were used for pav in- roads. The first blocks consisted of' si, or! uniform lengths, round iu shape as .-ut from the tree trunks. I -uer the shape was altered to hexa gun to secure a clorer Joint, and finally the blocks received their present rectangular rec-tangular form. This method ot paving was Intro duced into England about lSi.18, bui some time elapsed before the value ol a firm foundation, such as portland cement concrete, was fully appreciated |