This standard specifies the terms and definitions, requirements, test methods, inspection rules, packaging, delivery, storage and return of admixtures used in cement concrete. This standard is applicable to high performance water reducer (early strength type, standard type, retarded type), high efficiency water reducer (standard type, retarded type), ordinary water reducer (early strength type, standard type, retarded type) ), air-entraining water reducer, pumping agent, early strength agent, retarder and air-entraining agent, a total of eight types of concrete admixtures.
GB 8076-2008 Referenced Document
GB/T 14684 Sand for construction*, 2022-04-15 Update
GB/T 14685 Pebble and crushed stone for construction*, 2022-04-15 Update
GB/T 176 Cement Chemical Analysis Methods*, 2018-11-01 Update
GB/T 50080 Standard for test method of performance on ordinary fresh concrete*, 2016-08-18 Update
GB/T 50081 Standards for test methods of physical and mechanical properties of concrete*, 2019-10-12 Update
GB/T 8074 Testing method for specific surface of cement—Blaine method
GB/T 8075 Terms of concrete admixtures*, 2017-12-29 Update
GB/T 8077 Methods for testing uniformity of concrete admixture*, 2012-12-31 Update
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GBJ 82 Testing methods for long-term and long-lasting performance of ordinary concrete