Building materials(Classification list) The most comprehensive collection of Chinese national standards and industry standards

JC/T 440-2023 Active

JC/T 440-2023 Method for chemical analysis of dolomite used in glass industry

This document describes the determination methods for the loss on ignition, silica, aluminum oxide, iron oxide, titanium dioxide, calcium oxide, magnesium oxide, potassium oxide, and sodium oxide in dolomite used in the glass industry. This document is applicable to the chemical composition analysis of dolomite used in flat glass, but it is not suitable for the chemical composition analysis of dolomite with an iron oxide content lower than 0.05%.

Publish Date: 2023-12-20

JC/T 421-2023 Active

JC/T 421-2023 Cement sand-blasting wear test method

This document specifies the principles, instruments and equipment, materials, laboratory temperature and humidity, cement mortar composition, specimen molding and curing, and wear testing of cement mortar's wear resistance. This document is applicable to the wear resistance testing of cement mortar.

Publish Date: 2023-12-20

JC/T 60019-2023 Active

JC/T 60019-2023 JC/T 60019-2023 Application Technical Regulations for Prestressed Conduit Grouting Materials

This procedure applies to the selection, testing, construction, quality inspection, and acceptance of grouting materials for prestressed holes in the post-tensioning method.

Publish Date: 2023-08-16

JC/T 60018-2023 Active

JC/T 60018-2023 JC/T 60018-2023 Code for the Maintenance of Cast-in-Place Concrete Technology Specification

This specification applies to the external curing techniques adopted for cast-in-place concrete structures.

Publish Date: 2023-07-28

JC/T 60017-2023 Active

JC/T 60017-2023 Cement plant pre-stressed concrete technical specifications

This specification is applicable to the storage of bulk materials such as cement raw materials, clinker, cement, and small-sized limestone, which have a circular planar shape. The silo walls are designed and constructed using post-tensioned prestressed concrete. The design and construction of prestressed concrete silos for storing other bulk materials can be carried out in accordance with this specification.