scope:

Preface

This is the first edition of A3000, Cementitious Materials Compendium, addressing hydraulic cements and supplementary cementing materials. It follows the amalgamation of the two parent technical committees into one entity. The document separates the product Standards AS, Portland Cernent, A8, Masonry Cement, A23.5, Supplementary Cementing Materials, A362, Blended Hydraulic Cement, and A363, Cementitious Hydraulic Slag, from the test methods, equipment, and materials. Three new Standards, A456.1 , Chemical Test Methods for Hydraulic Cement, Supplementary Cementing Materials, and Cementitious Hydraulic Slag, A456.2, Physical Test Methods for Hydraulic Cement, Supplementary Cementing Materials and Cementitious Hydraulic Slag, and A456.3, Test Equipment and Materials for Hydraulic Cernent, Supplementary Cementing Materials, and Cementitious Hydraulic Slag, are common to and address the test methods, equipment, and materials for all five of the product standards

These are the fifth metric editions of CSA Standards AS, Porthnd Cement, A8, Masonry Cement, and A362, Blended Hydraulic Cement. They supersede previous editions of CAN3-AS, CAN3-A8, and CAN3- A362 which were published in 1977 and 1983, amended in July 1986, and published in 1988 and 1993 under the designations of AS, A8, and A362.

This is the third edition of CSA Standard A23.5, Supplementary Cementing Materials. It supersedes the first edition, CAN3423.5, Supplementary Cementing Materials and their Use in Concrete Construction, which was published in 1982, and the second edition A23.5, Supplementary Cementing Materials, published in 1986 and reaffirmed in 1992.

This is the fourth edition of CSA Standard A363, Cementitious Hydraulic Slag. It supersedes the three previous editions published in 1977, 1983, and 1988.

In Standards A5, Portland Cement, A8, Masonry Cement, A23.5, Supplementary Cementing Materials, A362, Blended Hydraulic Cement, and A363, Cementitious Hydraulic Slag, editorial changes were made for consistency of presentation with the other standards in the compendium document. The terminology of Type "S" for slag and Type "SF" for silica fume has been adopted.

In CSA Standard A5, Portland Cement, mandatory minimum compressive strengths have been changed to conform to the lower boundaries of data gathered since 1988 in a study of over 250,000 test results from Canadian cement producers. Optional maximum compressive strengths conforming to the upper boundaries from the same study are located in Appendix A of CSA Standard A5.

In CSA Standard A23.5, Supplementary Cementing Materials:

(a) language has been added to allow preblending of specific SCMs;

(b) flyash has been reclassified based on calcium content, and two subsets of Type C, Type CI and Type CH, have been added;

(c) the maximum loss on ignition for Type F flyash has been reduced from 12 % to 8 %;

(d) a new test for tendency to entrap air with the use of silica fume has been added;

(e) a new Appendix A has been added for optional requirements;

(f) the pozzolanic activity index has been harmonized with ASTM C311 for flyash and ASTM C1240 for silica fume and moved to Appendix A;

(g) the slag activity index has also been moved to Appendix A; and

(h) control of expansion due to alkali-silica reactivity has been changed to reference CAN/CSA-A23.2-25A, Test Method for Detection of Alkali-Silica Reactive Aggregate by the Accelerated Expansion of Mortar Bars, replacing previous reference to ASTM C 441.

Guidelines for the Use of Supplementary Cementing Materials in Concrete in Appendix B now references ACI Manual of Concrete Practice for information and guidance.

In CSA Standard A362, Blended Hydraulic Cement:

(a) ternary blend cement has been added;

(b) the nomenclature for the non-ternary cements has been changed to address equivalent performance to Portland cements;

(c) nomenclature of the ternary blend cements addresses the predominant and secondary supplementary cementing material components; (d) chemical requirements of the blended cements are differentiated by their supplementary material component;

(e) the MgO limit has been removed with control by the autoclave expansion test;

(f) there are new fineness, setting time, and autoclave requirements for the non-Type 10 E blended cements; and

(g) the new mandatory minimum compressive strength limits are the same as the Portland cement types.

There are heat of hydration requirements for Types 20E and 40E and sulphate resistance requirements for Types 20 E and 50E.

CSA Standard A456.1, Chemical Test Methods for Hydraulic Cernent, Supplementary Cementing Materials, and Cementitious Hydraulic Slag is a new standard common to all products. The following comments apply:

(a) the format is "A" (Dry), "6" (Paste) and "C" (Mortar);

(b) the term "moist environment" is used for "moist room" or "moist cabinet";

(c) the term "non-absorptive plate" has been inserted for "glass";

(d) the presentation (¡e, % retained) is consistent;

(e) it contains all testing, inspection, and sampling clauses;

(f) there has been revision of sampling frequencies for current equipment size and shipping rates;

(g) sampling processes are common and consistent where appropriate;

(h) packaging and identification are common for all products;

(i) cube rejection criteria as previously approved by CSA (1 984) have been incorporated;

(j) a silica fume entrapped air test has been added;

(k) autoclave test language has been revised for Supplementary Cementing Materioh and Cementitious Hydraulic Slag;

(l) a method of load language for compressive strength testing from ASTM has been added;

(m) language for Portland cement testing has been added to the entrained air test;

(n) a change to fixed H,O for the determination of sulphate expansion and determination of sulphate resistance has been made to harmonize with ASTM; and

(o) a sulphate resistance test method for blended cements has been added.

CSA Standard A456.3, Test Equipment and Materials for Hydraulic Cement, Supplementary Cementing Materials, and Cernentifious Hydraulic Slag is a new standard common to all products. The following comments apply:

(a) it includes a new table with cube mould tolerances;

(b) cube mould assembly, compression machine loading, and verification of compression machine calibration language have been added to harmonize with ASTM;

(c) sand gradation clarification language (CSA versus ASTM) has been added;

(d) conditioning equipment language has been updated; and

(e) equipment for the additional chemical test methods has been added.

The Technical Committee on Hydraulic Cement and Supplementary Cementing Materials meets once a year and, in addition, numerous subcommittee meetings are held to continue the work of revising and updating the standards' requirements to reflect changes in the technology of cement manufacture and testing. The Technical Committee strived to develop (wherever possible) performance-based requirements in developing the Standards. As such, the resulting compendium is the first step in an evolutionary process towards total peformance-based standards

These Standards were prepared by the Technical Committee on Hydraulic Cement and Supplementary Cementing Materials and were formally approved by these Committees. These Standards will be submitted to the Standards Council of Canada for approval as National Standards.

Notes:

(1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.

(2) Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.

(3) This publication was developed by consensus, which is defined by the CSA Regulations Governing Standardization as "substantial agreement reached by concerned interests. Consensus includes an attempt to remove all objections and implies much more than the concept of a simple majority, but not necessarily unanimity". It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of the publication.

(4) CSA Standards are subject to periodic review, and suggestions for their improvement will be referred to the appropriate committee.

(5) All enquiries regarding this Standard, including requests for interpretation, should be addressed to Canadian Standards Association, Standards Development, 778 Rexdale Boulevard, Etobicoke, Ontario M9 W 7 R3.

Requests for interpretation should

(a) define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;

(b) provide an explanation of circumstances surrounding the actual field condition; and

(c) be phrased where possible to permit a specific "yes " or "no 'I answer.

Committee Interpretations are processed in accordance with the CSA Directives and guidelines governing  standardization and are published in the CSA's periodical info Update. For subscription details, write to CSA Sales Promotion, Info Update, at the address given above.