Final answer:
To waterproof a cold-mix patch, a cover is secured over the area and then activated CS capsules are used underneath to create a barrier. The process includes placing, activating, and after time, relocating the covers for efficient, repeated use.
Step-by-step explanation:
To waterproof the porous surface of a cold-mix patch, an innovative method was devised involving micronized copper sulfide (CS) contained in watertight capsules. These capsules, when activated under a securely placed cover, would create a CS-rich atmosphere that helped to waterproof the treated area. The waterproofing process included several critical steps:
- Securing tarps over the treatment area with steel nails, rubber washers, and reinforced eyelets or elastics.
- Inserting and securing permeable CS capsules under the covers with velcro attachments.
- Allowing sufficient time (at least 4 hours) for the CS to create an effective barrier.
- Recovering empty capsules and moving covers to the next area.
- Refilling capsules with micronized CS, closing, and preparing them for the next deployment.
This method enhances efficiency by reducing labor and time spent on cover preparation, increasing diver carrying capacity, and mitigating exposure to harmful substances through the controlled use of micronized CS.