NEW ROAD REPAIRING DEVICE.
Sections of a concrete road in lowa, which had sunk below the level due to improper foundation, have been raised by boring holes in the surface and pumping in a mixture of cement and mud. The pressure of the mixture lifts tlie road sections, and -when the cement hardens a strong foundation is provided. In some places ports of road were lifted as high as 13in, The process has been patented.
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https://paperspast.natlib.govt.nz/newspapers/DOM19310707.2.9
Bibliographic details
Dominion, Volume 24, Issue 240, 7 July 1931, Page 2
Word Count
75NEW ROAD REPAIRING DEVICE. Dominion, Volume 24, Issue 240, 7 July 1931, Page 2
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