The present invention is a GCL waterproofing material containing PAM, SAP, etc., a GCL anti-vibration waterproofing material, a bentonite waterproofing material, a sealing material containing bentonite, which is used for the base surface treatment of the waterproofing material, and is attached to the joint of the waterproofing material. A seal strap having an adhesive layer using an acrylic resin monomer, a bentomastic applied to the joint of the waterproofing material, and a bento seal that is a water-repellent material inserted into the joint of the waterproofing material installation object; Facilities, buildings, structures, ground facilities, underground facilities, underground structures, and underground parking lots using them; one of the methods, construction methods, and techniques of waterproofing, water-repellent, rust-proof, and anti-corrosion waterproofing; about etc.
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