混凝土的规格与供应

Australian Standard^®

Specification and supply of concrete

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Foreword

This Australian Standard® was prepared by Committee BD-049, Manufacture of Concrete. It was approved on behalf of the Council of Standards Australia on 19 April 2007.

This Standard was published on 20 September 2007.

The following are represented on Committee BD-049:

• AUSTROADS
• Ash Development Association of Australia
• Association of Consulting Engineers Australia
• Australasian Slag Association
• Cement Concrete and Aggregates Australia—Cement
• Cement Concrete and Aggregates Australia—Concrete
• Concrete Institute of Australia
• National Precast Concrete Association Australia

This Standard was issued in draft form for comment as DR 05253.

Standards Australia wishes to acknowledge the participation of the expert individuals that contributed to the development of this Standard through their representation on the Committee and through the public comment period.

Keeping Standards up-to-date

Australian Standards® are living documents that reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued.

Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments that may have been published since the Standard was published.

Detailed information about Australian Standards, drafts, amendments and new projects can be found by visiting www.standards.org.au

Standards Australia welcomes suggestions for improvements, and encourages readers to notify us immediately of any apparent inaccuracies or ambiguities. Contact us via email at mail@standards.org.au, or write to Standards Australia, GPO Box 476, Sydney, NSW 2001.

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Australian Standard^®

Specification and supply of concrete

Originated as AS (E)A502—1941.

Revised and redesignated as AS 1379—1991.

Second edition 1997.

Third edition 2007.

COPYRIGHT

© Standards Australia

All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher.

Published by Standards Australia GPO Box 476, Sydney, NSW 2001, Australia

ISBN 0 7337 8395 3

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PREFACE

This Standard was prepared by the Standards Australia Committee BD-049, Manufacture of Concrete, to supersede AS 1379—1997.

The objective of this Standard is to update the 1997 edition, align with modifications to the revision of AS 3600 and to improve clarity of requirements and commentary.

This edition incorporates the following major changes to the previous edition:

(a) Extension of standard concrete grades from 50 MPa to 100 MPa.

(b) Introduction of new clause covering chemical admixtures and chemical content of concrete.

(c) Introduction of new special class concrete designations, which recognize the exposure classification.

(d) Provides transparency of cement and aggregates required for durability.

(e) Introduction of reportable chemical properties of mixing water.

(f) Modification of acceptable variation between test specimens.

(g) Reformatting of Table B1 to make it more user friendly.

The term ‘normative’ and ‘informative’ have been used in this Standard to define the application of the appendix to which they apply. A ‘normative’ appendix is an integral part of a Standard, whereas an ‘informative’ appendix is only for information and guidance.

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CONTENTS

Page

SECTION 1 SCOPE AND GENERAL

1.1 SCOPE ... 5

1.2 REFERENCED DOCUMENTS ... 5

1.3 DEFINITIONS ... 7

1.4 NOTATION ... 9

1.5 SPECIFICATION OF CONCRETE ... 10

1.6 METHODS OF ORDERING ... 12

1.7 BASIS OF SUPPLY ... 12

SECTION 2 CONCRETE CONSTITUENTS

2.1 GENERAL ... 14

2.2 CEMENT CONSTITUENTS ... 14

2.3 AGGREGATES ... 14

2.4 MIXING WATER ... 14

2.5 CHEMICAL ADMIXTURES ... 15

2.6 OTHER MATERIALS ... 15

2.7 LIMITATIONS ON CHEMICAL CONTENT OF CONCRETE ... 15

2.8 ALKALI AGGREGATE REACTION ... 16

SECTION 3 PLANT AND EQUIPMENT

3.1 GENERAL ... 17

3.2 STORAGE CONTAINERS ... 17

3.3 WEIGHING EQUIPMENT ... 17

3.4 LIQUID DISPENSING EQUIPMENT ... 18

3.5 MIXERS ... 19

SECTION 4 PRODUCTION AND DELIVERY

4.1 GENERAL ... 22

4.2 BATCH PRODUCTION ... 23

4.3 CONTINUOUS PRODUCTION ... 26

4.4 DELIVERY ... 27

SECTION 5 SAMPLING AND TESTING OF CONCRETE

5.1 GENERAL ... 28

5.2 SLUMP ... 29

5.3 STRENGTH ... 29

5.4 AIR CONTENT ... 31

5.5 CHLORIDE AND SULFATE CONTENT ... 31

5.6 DRYING SHRINKAGE ... 32

5.7 7 DAY STRENGTH OF NORMAL-CLASS CONCRETE ... 32

5.8 OTHER PARAMETERS ... 33

SECTION 6 SAMPLING, TESTING AND ASSESSMENT FOR COMPLIANCE OF CONCRETE SPECIFIED BY COMPRESSIVE STRENGTH

6.1 GENERAL ... 34

6.2 SAMPLING AND TESTING ... 34

6.3 PRODUCTION ASSESSMENT ... 35

6.4 RECORDING AND DISSEMINATION OF PRODUCTION ASSESSMENT INFORMATION ... 38

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