초록 ▼

A process is designed to finish all slits of the surface layer of an airplane runway. The process involves a first step in which a slit is heated such that the surface of the slit is dry, and that the capillary holes of the slit are opened up. The surface of the slit is then provided with a coating

A process is designed to finish all slits of the surface layer of an airplane runway. The process involves a first step in which a slit is heated such that the surface of the slit is dry, and that the capillary holes of the slit are opened up. The surface of the slit is then provided with a coating of an asphalt synthetic agent. The coating is subsequently heated to cause the molecules of the asphalt synthetic agent to diffuse into the capillary holes of the slit, thereby preventing the water from finding its way into the gradation layer of the runway. In the meantime, the slit is provided with a soft interface capable of preventing the water from finding its way into the slits of the surface layer of the runway. The soft interface is securely attached to the slits regardless of the climatic changes.

대표청구항 ▼

1. A process for finishing an expansion slit of a surface layer of a runway for protecting from being cracked to split out crush stones, comprising the steps of:(a) heating surfaces of side walls, a bottom wall and arcuate top corners of said expansion slit of said surface layer to dry said side wal

1. A process for finishing an expansion slit of a surface layer of a runway for protecting from being cracked to split out crush stones, comprising the steps of:(a) heating surfaces of side walls, a bottom wall and arcuate top corners of said expansion slit of said surface layer to dry said side walls, said bottom wall and said arcuate top corners and open up capillary bores of said surfaces of said expansion slit; (b) coating said surfaces of said side walls, said bottom wall and said arcuate top corners of said expansion slit with a coating of asphalt synthetic agent, which has a predetermined thickness and is made by melting a straight asphalt and a blown asphalt to form a mixture with a predetermined ratio, wherein a top portion of a second slit extended downwardly from said bottom wall of said expansion slit is filled with a section of said asphalt synthetic agent; (c) heating said coating of asphalt synthetic agent coated on said surfaces of said side walls, said bottom wall and said arcuate top corners to cause molecules of said coating of asphalt synthetic agent to diffuse into said capillary holes of said surfaces of said side walls, said bottom wall and arcuate top corners of said expansion slit to form a holding surface on said surfaces of said expansion slit; (d) attaching a waterproof rubber cloth on a bottom of said holding surface to waterproof said second slit from outside; and (e) filling a gap defined between two sides of said holding surface and said waterproof rubber cloth adhered at said bottom of said holding surface of said expansion slit with a hot asphalt synthetic agent until said hot asphalt synthetic agent is level with an open top of said expansion slit.