AS 13162003

Australian Standard

Masonry cement

AS

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This Australian Standard was prepared by Committee BD-010, Cement. It was approved on behalf of the Council of Standards Australia on 13 December 2002 and published on 16 January 2003.

The following are represented on Committee BD-010:

Ash Development Association of Australia

Association of Consulting Engineers Australia

Australasian Slag Association

Australian Pre-mixed Concrete Association

Austroads

Cement & Concrete Association of Australia

Cement Industry Federation

Concrete Institute of Australia

CSIRO Manufacturing and Infrastructure Technology

Housing Industry Association

Institute of Engineers Australia

University of New South Wales

Keeping Standards up-to-date

Standards are living documents which 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 Standards may also be withdrawn.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 which may have been published since the Standard was purchased.

Detailed information about Standards can be found by visiting the Standards Australia web site at www.standards.com.au and looking up the relevant Standard in the on-line catalogue.

Alternatively, the printed Catalogue provides information current at 1 January each year, and the monthly magazine, The Australian Standard, has a full listing of revisions and amendments published each month.

We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Contact us via email at mail@standards.com.au, or write to the Chief Executive, Standards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001.

This Standard was issued in draft form for comment as DR 98633.

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AS 13162003

Australian Standard

Masonry cement

Originated as AS A1521969. Previous edition AS 13161972. Second edition 2003.

COPYRIGHT

Standards Australia International

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 International Ltd GPO Box 5420, Sydney, NSW 2001, Australia

ISBN 0 7337 5022 2

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AS 13162003 2

PREFACE

This Standard was prepared by Standards Australia Committee BD-010, Cement, to

supersede AS 13161972.

The objective of this Standard is to provide manufactures and users of masonry cement with

specifications covering materials, composition, sampling, testing, physical requirements,

packing and marking for masonry cement intended for use in mortars for masonry

construction in conjunction with masonry units of clay, calcium silicate, concrete and

square dressed natural stone.

This Standard incorporates the following major changes to AS 13161972:

(a) In line with Standards Australia policy of producing performance-based Standards,

masonry cements are specified in terms of their performance, wherever possible.

(b) An attempt has been made to closely align this Standard with developments in

AS 3700, Masonry structures, particularly in adopting the same masonry mortar

classification.

(c) The revision of AS 13161972 produced two separate Standards; a specification for

masonry cement (this Standard), and a suite of test methods for masonry cement

published separately as part of the AS/NZS 2350 series.

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3 AS 13162003

CONTENTS

Page

FOREWORD ..............................................................................................................................4

1 SCOPE ........................................................................................................................5

2 REFERENCED DOCUMENTS ..................................................................................5

3 MATERIALS ..............................................................................................................5

4 MASONRY CEMENT TYPES AND COMPOSITION ..............................................6

5 SAMPLING AND TESTING ......................................................................................6

6 REQUIREMENTS ......................................................................................................6

7 PACKING, MARKING AND DELIVERY OF BAGGED MASONRY CEMENT.....7

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AS 13162003 4

FOREWORD

Masonry cement is a finely ground mixture of portland cement clinker, calcium sulfate, and

suitable inorganic materials such as hydrated lime as defined by AS 1672.11997, Limes

and limestones, Part 1: Limes for building, and mineral additions, as defined by

AS 39721997, Portland and blended cements. Suitable air-entraining agents or

plasticizers, or both, may also be incorporated.

Masonry cement is intended for use in mortars for masonry construction in conjunction with

masonry units of clay, calcium silicate, concrete and square dressed natural stone. When

mixed with fine aggregates (sand) it produces a smooth, plastic and cohesive mortar

characterized by a lower rate of strength development than that of general purpose portland

cement. Hence, it may not be suitable for structural brickwork or for special purpose

mortars where high strength is required although its strength may be increased by gauging it

with portland cement. For normal masonry construction, however, the lower rate of strength

development is an advantage as shrinkage, thermal and other movements in the masonry

can be better accommodated in the mortar joints and unsightly cracking prevented. Masonry

cement is not intended for use in any form of structural concrete (plain, reinforced or

prestressed), floors or foundation work.

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5 AS 13162003

www.standards.com.au Standards Australia

STANDARDS AUSTRALIA

Australian Standard

Masonry cement

1 SCOPE

This Standard specifies requirements for masonry cement, a hydraulic cement intended for

use in mortars for masonry construction in conjunction with masonry units of clay, calcium

silicate, concrete and square dressed natural stone.

This Standard does not provide for all the requirements that may be needed in specific

applications of masonry cement, e.g., high strength mortars.

NOTE: Autoclaved aerated concrete units (AAC) are laid in thin bed mortars that are proprietary,

purpose-made mortars.

2 REFERENCED DOCUMENTS

The following documents are referred to in this Standard:

AS

1478 Chemical admixtures for concrete, mortar and groutAdmixtures for concrete

1672 Limes and limestones

1672.1 Part 1: Limes for building

2349 Method of sampling portland and blended cements

3582 Supplementary cementitious material for use with portland and blended cement

3582.1 Part 1: Fly ash

3582.2 Part 2: SlagGround granulated iron blast-furnace

3700 Masonry structures

3972 Portland and blended cements

AS/NZS

2350 Methods of testing portland, blended and masonry cements

2350.1 Method 1: Sampling and sample preparation

2350.4 Method 4: Setting time of portland and blended cements

2350.11 Method 11: Compressive strength of portland and blended cements

2350.16 Method 16: Determination of air content of masonry cement

2350.17 Method 17: Determination of soundness of masonry cement

2350.18 Method 18: Determination of water retention of masonry cement

3 MATERIALS

3.1 Portland cement clinker

Portland cement clinker shall comply with AS 3972.

3.2 General purpose portland cement

General purpose portland cement shall comply with AS 3972.

3.3 General purpose blended cement

General purpose blended cement shall comply with AS 3972.

3.4 Fly ash

Fly ash shall comply with AS 3582.1. Acce

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AS 13162003 6

Standards Australia www.standards.com.au

3.5 Ground Granulated iron blast-furnace slag

Ground granulated iron blast-furnace slag (slag) shall comply with AS 3582.2.

3.6 Limestone

Limestone shall comply with AS 3972.

3.7 Mineral additions

Mineral additions are selected limestone, or fly ash or ground granulated iron blast-furnace

slag, or both.

3.8 Hydrated Lime

Hydrated lime shall comply with AS 1672.1.

3.9 Calcium sulfate

Calcium sulfate shall comply with AS 3972.

3.10 Admixtures

Air entraining agents, plasticizers or workability agents shall comply with AS 1478.

4 MASONRY CEMENT TYPES AND COMPOSITION

4.1 Masonry cement

Masonry cement shall be either masonry composite cement as specified in Clause 4.2 or

masonry binary cement as specified in Clause 4.3.

4.2 Masonry composite cement

Masonry composite cements are mixtures of portland cement clinker and calcium sulfate or

general purpose portland cement, with mineral additions with or without admixtures.

Mineral additions shall be limited to one of the following:

(a) Up to 25% limestone.

(b) Up to 35% slag and/or fly ash.

4.3 Masonry binary cements

Masonry binary cements are binary blends of general purpose cements and hydrated lime.

Masonry binary cements shall be identified as follows:

(a) Masonry binary cement M2 Masonry cement when mixed with the appropriate

quantity of sand is capable of producing mortar type M2 as defined in AS 3700.

(b) Masonry binary cement M3 Masonry cement when mixed with the appropriate

quantity of sand is capable of producing mortar type M3 as defined in AS 3700.

(c) Masonry binary cement M4 Masonry cement when mixed with the appropriate

quantity of sand is capable of producing mortar type M4 as defined in AS 3700.

5 SAMPLING AND TESTING

Sampling of masonry cement shall be carried out in accordance with AS 2349 and testing

shall be carried out in accordance with the appropriate test methods given in Table 1.

6 REQUIREMENTS

6.1 Specified properties

Masonry composite cement and masonry binary cement shall comply with the limits given

in Table 1. Acc

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www.standards.com.au Standards Australia

TABLE 1

PHYSICAL REQUIREMENTS

Limit

Property Masonry binary cement

Masonry

composite

cement

Test Method

Setting time

initial minutes min.

final hours max.

75

12

75

12

AS/NZS 2350.4

Soundness

autoclave expansion % max.

1.0

1.0 AS/NZS 2350.17

Water retention % min. 70 70 AS/NZS 2350.18

Air content

% min.

% max.

10

25

10

25

AS/NZS 2350.16

Compressive strength MPa M2 M3 M4

7 days min.

28 days min.

4

3.5

6

10

15

10

15

AS/NZS 2350.11

6.2 Reportable properties

In addition to those properties given in Table 1, the manufacturer shall, at the request of a

purchaser obtaining masonry cements directly from the manufacturer, provide evidence that

composition is consistent with the requirements of Clause 4.

NOTE: This evidence can either be in the form of chemical analysis or where the manufacturer

can demonstrate compliance by an audited and registered quality management system complying

with the requirements of the appropriate or stipulated Australian or international Standard.

7 PACKING, MARKING AND DELIVERY OF BAGGED MASONRY CEMENT

7.1 Packing and delivery

Masonry cement shall be delivered in bags that are sound and undamaged by moisture or

other defects.

7.2 Marking

Masonry cement bags shall be clearly marked Masonry Composite Cement or Masonry

Binary Cement, as appropriate.

In addition, the bags shall be legibly marked with the following information:

(a) In case of masonry binary cement, the designation M2, M3 or M4 as appropriate.

(b) Nominal proportion of ingredients.

(c) Name of manufacturer.

(d) Nett mass per bag.

(e) Date of packing or a suitable code.

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AS 13162003 8

NOTES

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ISBN 0 7337 5022 2 Printed in Australia Acc

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AS 1316-2003 MASONRY CEMENT PREFACECONTENTSFOREWORD1 SCOPE2 REFERENCED DOCUMENTS3 MATERIALS3.1 Portland cement clinker3.2 General purpose portland cement3.3 General purpose blended cement3.4 Fly ash3.5 Ground Granulated iron blast-furnace slag3.6 Limestone3.7 Mineral additions3.8 Hydrated Lime3.9 Calcium sulfate3.10 Admixtures

4 MASONRY CEMENT TYPES AND COMPOSITION4.1 Masonry cement4.2 Masonry composite cement4.3 Masonry binary cements

5 SAMPLING AND TESTING6 REQUIREMENTS6.1 Specified properties6.2 Reportable properties

7 PACKING, MARKING AND DELIVERY OF BAGGED MASONRY CEMENT7.1 Packing and delivery7.2 Marking

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