Standard No.:	GB/T 26748-2011
English Name:	Cement grinding aids
Chinese Name:	水泥助磨剂
Chinese Classification:	Q11    Cement
Professional Classification:	GB    National Standard
ICS Classification:	91.100.10 91.100.10    Cement. Gypsum. Lime. Mortar 91.100.10
Issued by:	AQSIQ; SAC
Issued on:	2011-7-20
Implemented on:	2012-3-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	60.0
Delivery:	via email in 1 business day

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.   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