Page 3 Advertisements Column 4

Taranaki Daily News, 17 August 1921, Page 3

A NEW INDUSTRY. REVOLUTION IN ROAD-3IAKTNG. (Published by Arrangement.) This ie the age of economy in manufacture, and therefore any process by which the cost of road-making, building, floor, wall and ceiling coverings, and brick-making can be reduced is worth the closest investigation with a view to economy in manufacture in a field where there are immense possibilities. Experiments made in Australia resulted in- the formation of a company known as the Oakley Patent Process Cement Company, «and their manufactures have been Submitted to the most rigorous tests by experts in various parts of the Dominion and Australia. The feature of the process is that by use of the patent many kinds of refuse can be used lip and made into materials that come into daily use in many ways, replacing because of their much less expense many materials now being used. Amongst those that have been proved by test and demonstration are ceiling boards, marble tiles for whey tanks, grates, counter tops and fronts, bricks, .concrete, and others. But the feature of the whole process is that these can be made from waste products that hitherto have been thrown away. Concrete from clinker or papa rock, bricks from ironsand and other grits, briquettes from sawdust or even rubber dust or garden soil. The ironsand bricks in a few days were as hard as the burnt clay brick, and no burning required. The tiles have been tested with very great heat and also with acid, and show' no apparent impression or disintegration. The briquettes of weaker mixture stand testing better than pure cement, while the concrete made from Petone gravel stood a test of tons to the square inch. The marble shows it© color right through and has when set for a. few days a glass-liko surface, and any color can be incorporated into the, marble. The sawdust, reinforced with fibre, resulted in a solidity that is remarkable, standing well out for strength and rigidity. By the process- almost any local by-product may be used up. The material is easily \vorked m all conwstencies, wet, plastic or semi-dry. easily blending with papa, clay, ironsand, and other grits, shingle, cinders, sawdust, and even cork. With ochre pigments or oxides colored marbles of great beauty and reining are easily produced, having superb polished finish, simply from contact with smooth mould faces. Roofing tiles with no absorption. fibrous coverings for ceilings and. inside walls, outside walls, slabs, bricks, etc., flooring coverings, all with a specific gravity less than ordinary cement mixtures, indeed there appears but small limit to its application. Experimenting is going on with earth mould, and socalled waste materials from the point of view of the ordinary cement mixer. This gives an idea of the great savings to be eiTected. The patent is being taken up by a small company in Hawera and will be floated later into a larger company to put the materials on tho market as soon as a report is available fro/h. Messrs. E. J. Shakelford. of Wellington, J, T, Earkla a»d H, H. Blftk® y tf? S a -