1、BRITISH STANDARD BS 4550-3.1: 1978 Methods of testing cement Part 3: Physical tests Section 3.1 Introduction IMPORTANT NOTE. It is recommended that this Section be read in conjunction with the information in the “General introduction” to BS4550, which is issued separately. UDC 666.94.01:620.1:53BS45
2、50-3.1:1978 This British Standard, having been prepared under the direction of the Cement, Gypsum, Aggregates and Quarry Products Standards Committee, was published under the authority of the Executive Board on 30 June 1978 BSI 03-1999 The following BSI references relate to the work on this standard
3、: Committee reference CAB/1 Draft for comment 73/10751 DC ISBN 0 580 10136 3 Foreword This British Standard has been prepared under the direction of the Cement, Gypsum, Aggregates and Quarry Products Standards Committee. It brings together and revises the physical test methods described in appendice
4、s to the following British Standards: 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 1370-2:1974, Low heat Portland cement. BS 4027-2:1972, Sulphate-resisting Portland cement. BS 4246-2:1974, Low heat
5、Portland-blastfurnace cement. BS 4248:1974, Supersulphated cement. BS 5224:1976, Specification for masonry cement. Part 0 of BS4550 is a general introduction; Part1 lays down methods of sampling cement; Part2 describes methods of chemical testing of cement; Part4 specifies the standard coarse aggreg
6、ate for concrete cubes; Part5 specifies the standard sand for concrete cubes and Part 6 specifies the standard sand for mortar cubes. Publication of BS4550 enables the standards listed in the previous paragraph to be revised by deletion of the relevant appendices. This will avoid repetition in the e
7、xpanding range of cement standards and ensure that, if changes are made in any of the test methods, the standards remain in step. It is anticipated that the mortar cube test will be deleted on the first revision of this Part of this standard. The ISO mortar prism test has not been included as a stan
8、dard method of test, since the method is at an advanced stage of revision under the direction of CEN and publication is expected in the near future. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct
9、 application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and a back cover. This standard has been updated (see copyrig
10、ht date) and may have had amendments incorporated. This will be indicated in the amendment table on theinside front cover. Amendments issued since publication Amd. No. Date of issue CommentsBS4550-3.1:1978 BSI 03-1999 i Contents Page Foreword Inside front cover 1 Scope 1 2 References 1 3 Definitions
11、 1 4 Sampling 1 Publications referred to Inside back coverii blankBS4550-3.1:1978 BSI 03-1999 1 1 Scope This Part of this British Standard specifies methods for the physical testing of cement. The methods of test are issued separately as follows: 3.2 Density test 3.3 Fineness test 3.4 Strength tests
12、 3.5 Determination of standard consistence 3.6 Test for setting times 3.7 Soundness test 3.8 Test for heat of hydration 2 References The titles of the publications referred to in this Section are given on the inside back cover. 3 Definitions For the purposes of this Part of this BritishStandard, the
13、 definitions given in BS4627 apply. 4 Sampling Test samples for use in the following tests shall be obtained in accordance with BS 4550-1. The test sample shall be mixed thoroughly and a sample of the specified size for the required test shall be taken from it.2 blankBS 4550-3.1:1978 BSI 03-1999 Pub
14、lications referred to BS 4550, Methods of testing cement. BS 4550-1, Sampling. BS 4627, Glossary of terms relating to types of cements, their properties and components. BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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