Add:Hongxiang Road,Economic Development
As early as ancient times, people used the foot foot of the herd to tread, rub and tamp the foundation of the house, compacted the foundation of the house, compacted the dam and the river embankment. Before the middle of the nineteenth Century, the western road engineering was mainly crushed stone paving, and the compaction was crushed mainly by the vehicle. After the invention of the stone mill in 1858, it promoted the crushing. The development of the stone road, only gradually appeared the use of Mara roller compaction work, this is the earliest prototype of the roller, in 1860 in France, a steam roller, further promote and improve the construction technology and quality of the gravel pavement, speed up the progress.
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