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Show PUT CONCRETE TCP 0:i TAiVK Stout Platform Should Be Erected Just Level With Top to Hold Cover Until It Is Set. In reply to a query as to the best way of putting a concrete top on a circular stone supply tank, about 9 feet in diameter, the Breeder's Ga zette makes the following reply: "Make a stout platform in the tank just level with the top to hold up the cover until It Is set. As this platform should be quite tight, it had best be covered with building paper or other such material. As one will want a manhole to take out the lumber, he can cut out the boards where this is to be and replace them by having cleats nailed under them. The form for this manhole should be made tapering and out of 6-lnch boards, say 18 Inches at bottom and 22 inches at the top. On each side of the manhole lay an Inch round rod and have some stout wire fencing cut ready for rein forcing. After placing an Inch of concrete place the bars and the fencing which should be double and then fill In the concrete to 4 inches, If the cover Is not to be for sustaining any weight t but its own. If It is to be the floor of a building, then put In 6 inches of concrete. As soon as the concrete is set, or after one day, take out the manhole box, line the hole with paper and fill this with concrete, not forgetting for-getting to put In some kind of ring by whi'ch to lift it. After a week or ten days lift out the cover of the manhole and remove the wooden platform. "This cover can be made on a platform plat-form on the ground and then placed on the tank. To do this It will be best to use ft reinforcing of half-Inch steel rods placed 6 inches on center each way and tied with wire at intersections inter-sections and then make the thickness only 3 inches. Use a mixture of one, two and three. That Is, one of cement, ce-ment, two of sand and three of crushed crush-ed stone, none over half an inch In diameter. |