Identifier: cityroadspavemen00juds (find matches)
Title: City roads and pavements suited to cities of moderate size.
Year: 1902 (1900s)
Authors: Judson, William Pierson, 1849-1925
Subjects: Streets Pavements Roads
Publisher: New York : The Engineering news publishing company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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-two for five years ; one for six years ; onefor seven years, and ten for ten years; while elevenrequire no guarantee, some buying the brick and layingthem by hired labor. The general tendency seems tobe toward a five-year guarantee with a surety conipanybond. lOI CITY ROADS AND PAVEMENTS. ^^f*^-
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C s: 02 .. •• (1) J3 o -d ai O u a. bec is:^ I02 AMERICAN SHEET-ASPHALT, ARTIFICIALAND NATURAL. COMPARATIVE QUALITIES OF PAVEMENTS. Asphalt pavement ranks first in extent of use and insatisfactory qualities, being fairly durable, and cleanerand less noisy than brick. Vitrified brick, the latestand best types of wooden blocks and the morerecent bituminous macadam, are its rivals for publicfavor. HISTORV OF ASPHALT PAVEMENTS. The original pavements were made in Paris in 1854and were formed of pulverized natural asphalt rock,mined at different places in France and Switzerlandand Sicily. This rock is a natural combination ofeighty-eight per cent of amorphous carbonate of lime,with twelve per cent of mineral tar or bitumen, form-ing a bituminous limestone, and is generally used forthe comparatively small amount of asphalt pavementsin European cities. A similar combination of sandstone and seven percent to thirteen per cent by weight of bitumen is knownas Kentucky sand-rock asphalt, and

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