Turnall Holdings Limited manufactures AC Pipes for water reticulation and Sewage conveyance. We also manufacture Concrete culvert pipes.
The should be so handled and lifting tackle so designed as to avoid damage to the turned ends on which the joint seal is seated. Hooks inserted in the ends, unless specifically designed, should be avoided and even when made for the purposes should only be used with a spreader bar or beam. For handling large quantities of the smaller pipes by crane, slings made from belting are necessary.
Select a level piece of ground and clear it of stones. If there is no space restriction, a stack in the shape of a pyramid is satisfactory. It is only necessary to chock the bottom row to prevent spread and collapse.
When unloading on site, it is generally preferable to string the product out along the trench direct from the truck. When done, place them obliquely on the excavated material so that the ends are not in contact with the earth.
- They must be evenly bedded along their full length. If the trench has a rocky bottom it should be over-excavated and backfilled with earth to invert plus 75mm to 100mm and the product bedded down in this material.
- Recesses must be excavated at each joint, to ensure that the trench loads are not concentrated at the joints and to facilitate jointing.