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FERRO-CONCRETE.

Sir,—Having road about the fears of th« Auckland Harbour Board re oxidisation ' of.V# the forro-concrotc, a very simple means of /iv' protection against such would be the electro coppering of the ; ferro ?frames;- and\ if fur< ther security be" desired to heat the piles, and then treat them with boiling tar, oil, or pitch. Kauri oil would, no doubt, 'bci a suitable medium, and assist; local industry. . ; Calcium hydrate is so .well known for its at-! '/ tacking iron; 01 steel that the latter,/cvi'-Vc only/be relied upon for a ? short* period ;«* y' aot as support in such' structures. Trust/ ing this may assist and allay further tronfclV , by, oxidisation, ;, . ; W. S. Maceat. ' ' .v.' *% '■ ■- 'V .-\V. Vv ,V " ...w

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Permanent link to this item

https://paperspast.natlib.govt.nz/newspapers/NZH19080903.2.12.4

Bibliographic details

New Zealand Herald, Volume XLV, Issue 13845, 3 September 1908, Page 3

Word Count
118

FERRO-CONCRETE. New Zealand Herald, Volume XLV, Issue 13845, 3 September 1908, Page 3

FERRO-CONCRETE. New Zealand Herald, Volume XLV, Issue 13845, 3 September 1908, Page 3