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Method for repairing craters in the surface of a concrete runway

阅读:449发布:2022-10-17

专利汇可以提供Method for repairing craters in the surface of a concrete runway专利检索,专利查询,专利分析的服务。并且A cylindrical rubber drum containing a ''''fast fix'''' cement and water in proper proportion and having metal ends for receiving ball bearings. A stationary shaft passes through the drum and a towing hitch is applied to the shaft. An inert gas is introduced into the drum either from a tank under pressure or by encapsulation to take up the ullage space caused by the shrinkage of the concrete mix. Paddles are mounted on the shaft so that as the drum is towed at a fast clip toward a damaged runway, the mixture is churned into a slurry of proper consistency and can be used immediately in leveling and hardening the fill which has previously been dumped into the crater.,下面是Method for repairing craters in the surface of a concrete runway专利的具体信息内容。

1. In the art of maintaining concrete runways free from holes and craters in the surface, comprising: making available a number of rubber drums filled with concrete in dry form within a relatively short distance from the runway wherein a hole or crater may be formed; introducing water into as many drums as will furnish the necessary slurry when mixed with the concrete to complete the repair job; introducing into the drums a quantity of dry gas to take up the ullage space in each drum caused by the shrinkage in volume of the concrete and water whereby the circularity of the drum is maintained during a hauling process; pulling the drums over the ground in the direction of the repair scene in order to agitate the concrete and water mix into a slurry of predetermined consistency ready to be applied to the crater in the damaged runway and supplying air under pressure to the drum, at the crater sight, to aid in expelling the slurry from the drum through an opening in the drum.
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