1、BRITISH STANDARD BS 4550-0: 1978 Methods of testing cement Part 0: General introduction UDC 666.94.01BS4550-0:1978 This British Standard, having been prepared under the directionof the Cement, Gypsum,Aggregates and QuarryProducts Standards Committee, was published underthe authority ofthe Executive
2、Board on 30 June 1978 BSI 02-1999 The following BSI references relate to the work on this standard: Committee reference CAB/1 Draft for approval 77/12979 ISBN 0 580 10151 7 Cooperating organizations The Cement, Gypsum, Aggregates and Quarry Products Standards Committee, under whose direction this Br
3、itish Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: Association of Consulting Engineers* Autoclaved Aerated Concrete Products Association British Precast Concrete Federation Ltd.* British Quarrying and Slag F
4、ederation* British Railways Board British Ready Mixed Concrete Association* British Steel Industry* Cement Admixtures Association* Cement and Concrete Association* Cement Makers Federation* Chemical Industries Association Concrete Society Limited* Department of the Environment (Building Research Sta
5、tion)* Department of the Environment (Housing and Construction) Department of the Environment (PSA)* Department of the Environment (Transport and Road Research Laboratory)* Department of Transport Federation of Civil Engineering Contractors* Federation of Stone Industries Greater London Council* Gyp
6、sum Products Development Association Institute of Quarrying Institution of Civil Engineers* Institution of Municipal Engineers Institution of Structural Engineers* Institution of Water Engineers and Scientists National Federation of Building Trades Employers Natural Environment Research Council Inst
7、itute of Geological Science Royal Institute of British Architects Royal Institution of Chartered Surveyors* Sand and Ballast Hauliers and Allied Trades Alliance Sand and Gravel Association Limited Society of Chemical Industry* The organizations marked with an asterisk in the above list, together wit
8、h the following, were directly represented on the committee entrusted with the preparation of this British Standard: Brick Development Association Department of the Environment Electricity Supply Industry in England and Wales Amendments issued since publication Amd. No. Date of issue CommentsBS4550-
9、0:1978 BSI 02-1999 i Contents Page Cooperating organizations Inside front cover Foreword ii References 1BS4550-0:1978 ii BSI 02-1999 Foreword This British Standard has been prepared under the direction of the Cement, Gypsum, Aggregates and Quarry Products Standards Committee. This is a general forew
10、ord to the whole standard, individual forewords being included in each of the Parts of BS 4550. It should be appreciated that, whilst the main purpose of this standard is to provide cross-references for cement specifications, it is also intended as a complete British Standard for methods of testing
11、cement and some of the tests may not be referred to in other British Standards for cements. Publication of BS 4550 “Methods of testing cement” enables the standards listed below to be revised by the deletion of the appendices or cross-references relevant to methods of testing cement, thus avoiding r
12、epetition in the expanding range of cement standards: This will ensure that, if changes are made in any of the test methods, the standards remain in step. BS 12-2:1971, Portland cement (ordinary and rapid-hardening). BS 146-2:1973, Portland-blastfurnace cement. BS 915-2:1972, High alumina cement. BS
13、 1370-2:1974, Low heat Portland cement. BS 4027-2:1972, Sulphate-resisting Portland cement. BS 4246-2:1974, Low heat Portland-blast-furnace cement. BS 4248:1974, Supersulphated cement. BS 5224:1976, Specification for masonry cement. Part 0 of BS 4550 “Methods of testing cement” is a general introduc
14、tion; Part1lays down methods of sampling cement; Part 2 describes methods of chemical testing of cement; Part 3 specifies methods of physical testing of cement; Part4specifies the standard coarse aggregate for concrete cubes; Part 5 specifies the standard sand for concrete cubes; and Part 6 specifie
15、s the standard sand for mortar cubes. Each of the Parts, and in the case of Part 3, each of the sections, of this standard, is issued separately. It is intended that Part 2, now in one document, should be reprinted in due course, in Sections. The Parts and Sections of this standard can be purchased
16、separately or together, except for Part 2, in a loose leaf binder. The six Parts of BS 4550 “Methods of testing cement” consist of the following. Part 1: Sampling 1. Scope 2. General 3. Size of samples 4. Representation 5. Sampling methods 6. Storage and delivery of samples 7. Certificate of samplin
17、gBS4550-0:1978 BSI 02-1999 iii Part 2: Chemical tests 1. General 2. A scheme for the analysis of Portland cements 3. Insoluble residue 4. Total silica 5. Ammonium hydroxide group (so-called R 2O 3 ) 6. Total calcium oxide 7. Alumina 8. Iron oxide 9. Magnesia 10. Sulphuric anhydride 11. Sulphur prese
18、nt as sulphide 12. Total sulphur 13. Loss-on-ignition 14. Minor constituents and free lime 15. Pozzolanicity test for pozzolanic cements 16. Na 2 O and K 2 O by flame photometry 17. Chloride Part 3: Physical tests Section 3.1 Introduction Section 3.2 Density test Section 3.3 Fineness test Section 3.
19、4 Strength tests Section 3.5 Determination of standard consistence Section 3.6 Test for setting times Section 3.7 Soundness test Section 3.8 Test for heat of hydration Part 4: Standard coarse aggregate for concrete cubes 1. Scope 2. References 3. Source 4. Sampling 5. Grading Part 5: Standard sand f
20、or concrete cubes 1. Scope 2. References 3. Source 4. Sampling 5. Moisture content 6. Grading 7. Air-entraining characteristics 8. MarkingBS4550-0:1978 iv BSI 02-1999 Part 6: Standard sand for mortar cubes 1. Scope 2. References 3. Source 4. Sampling 5. Moisture content 6. Grading 7. Content of acid
21、-soluble matter 8. Marking A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pag
22、es This document comprises a front cover, an inside front cover, pages i to iv, page1 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on theinside front cover.BS4550-0:1978 BSI 02-1999 1 Ref
23、erences The titles of the standards publications referred to in each Part of this standard are listed at the end of each Part. In the case of Part 3, the titles of the standards publications referred to in each Section are listed at the end of each Section.BSI 389 Chiswick High Road London W4 4AL |
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