GB 23439-2009 (English Version) PDF

Standard No.: GB 23439-2009
Language: Chinese, Available in English version
Release Date: 2009
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2018-11
Replace By: GB/T 23439-2017
Latest: GB/T 23439-2017

Scope: This standard specifies the terms and definitions, classification, requirements, test methods, inspection rules, packaging, marking, transportation and storage of concrete expansive agents. This standard applies to calcium sulfoaluminate, calcium oxide and calcium sulfoaluminate-calcium oxide powder concrete expansion agents.

GB 23439-2009 Referenced Document

GB 1499.2 Steel for the reinforcement of concrete- Part 2: Hot rolled ribbed bars
GB 8076 Concrete admixtures
GB/T 12573 Sampling method for cement
GB/T 1345 The test sieving method for fineness of cement
GB/T 1346 "Test methods for water requirement of normal consistency,setting time and soundness of the Portland cement"
GB/T 176 Cement Chemical Analysis Methods*， 2018-11-01 Update
GB/T 17671 Test method of cement mortar strength ( ISO method )*， 2021-12-31 Update
GB/T 4357 Cold-drawn unalloyed steel wire for springs*， 2022-04-15 Update
GB/T 50081-2002 Standard for test method of mechanical properties on ordinary concrete
GB/T 6003.1 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth*， 2022-10-12 Update
GB/T 700 Carbon structural steels
GB/T 8074 Testing method for specific surface of cement—Blaine method
JGJ 63 Standard of water for concrete

GB 23439-2009 Expansive agents for concrete was changed to GB/T 23439-2017 Expansive agents for concrete.