T/ZZB 3455-2023 Active Group standards

T/ZZB 3455-2023 Shield Tail Sealant

Publish Date: 2023-11-15 Implement Date: 2023-12-10 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/ZZB 3455-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Sealing materials

ICS Name: Adhesives, sealing materials

Publish Date: 2023-11-15

Implement Date: 2023-12-10

Scope

Main technical content: This document specifies the basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and quality commitments for shield tail sealants. This document is applicable to shield tail sealants produced using plasticizers, tackifiers, thickeners, and filler powders as main raw materials, through processes such as heating, mixing, and kneading, for use in shield-driven underground engineering operations. The sealant is injected mechanically into the gap between the shield tail and the segment to form a sealing filling material.