T/HWMIA 07-2024 Active Group standards

T/HWMIA 07-2024 Concrete inspection well wall block

Publish Date: 2024-08-30 Implement Date: 2024-09-30 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/HWMIA 07-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Concrete and concrete products

Publish Date: 2024-08-30

Implement Date: 2024-09-30

Scope

Scope: This document specifies the terminology, classification and naming, technical requirements, test methods, inspection rules, marking, transportation and storage of concrete inspection well wall blocks. This document is mainly applicable to concrete blocks used for constructing underground inspection well walls in water supply and drainage, communications, broadcasting and television, fire protection, gas supply, and other fields. Main technical contents: Terminology of concrete inspection well wall blocks, raw materials, dimensional deviations, appearance quality, hollowing rate, outer wall and rib thickness, strength grade, frost resistance, carbonation coefficient, softening coefficient, water absorption, radionuclide limit, and corresponding test methods, etc.