1 Scope
This standard specifies terms and definitions, technical requirements, test materials, test methods, inspection rules, packaging, marking and storage, etc. for cement grinding aids.
This standard is applicable to cement grinding aids and other designated grinding aids that are subject to this standard.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 175 Common Portland Cement
GB/T 176 Methods for Chemical Analysis of Cement
GB/T 208 Test Method for Determining Cement Density
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 2419 Test Method for Fluidity of Cement Mortar
GB/T 5483 Natural Gypsum
GB/T 6283 Chemical Products—Determination of Water—Karl · Fischer Method (General Method)
GB/T 8074 Testing Method for Specific Surface of Cement—Blaine Method
GB/T 8077 Methods for Testing Uniformity of Concrete Admixture
GB/T 12573 Sampling Method for Cement
GB/T 14684 Sand for Construction
GB/T 14685 Pebble and Crushed Stone for Construction
GB/T 17671 Method of Testing Cements—Determination of Strength
GB/T 21372 Portland Cement Clinker
GB/T 50080 Standard for Test Method of Performance on Ordinary Fresh Concrete
GB/T 50081 Standard for Test Method of Mechanical Properties on Ordinary Concrete
JC/T 600 Limestone Portland Cement
JC/T 603 Standard Test Method for Drying Shrinkage of Mortar
3 Term and Definition
For the purposes of this standard, the following term and definition apply.
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3.1
cement grinding aids
additives that are used during cement grinding for aiding grinding without impairing human health and cement concrete properties, which are classified into liquid and powder types
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Technical Requirements
5 Test Materials
6 Preparation of Test Samples
7 Test Methods
8 Inspection Rules
9 Packaging, Marking, Transport and Storage
Annex A (Normative) Test Method of Grind-aiding Effect
Annex B (Normative) Concrete Property Test
Annex C (Normative) Type Inspection of Cement Grinding Aids
