Standard

CAN/CSA A3000-98

Tilbaketrukket
Forhåndsvisning Forhåndsvisning er ikke tilgjengelig
Dette produktet er ikke tilgjengelig for enkeltkjøp

Omfang

This is a searchable PDF.1. ScopeA5-1.1This Standard addresses the definition of Portland cement; the chemical, physical, and uniformity requirements; the tests required; the procedures for inspection and sampling; the units of measurement, packaging, marking, and storage.1.2Types The five types of Portland cement covered in this Standard are identified as follows: (Type - Name) 10 - Normal Portland cement; 20 - Moderate Portland cement ( Moderate with respect to the heat of hydration or sulphate resistance.); 30 - High-early-strength Portland cement; 40 - Low-heat of hydration Portland cement; 50 - Sulphate-resistant Portland cement.Note: The requirements of this Standard also apply to white Portland cement.A8-1.1This Standard addresses the requirements for two types of ma sonry cement for use in masonry mortar; Types N and S.A23.5-1.1This Standard addresses the requirements for supplementary cementing materials consisting of natural pozzolans, fly ash, ground granulated slag, and silica fume, added at the mixing plant to supplement the Portland cement in concrete.1.2This Standard provides for the acceptance of a supplementary cementing material either on the basis of tests on samples of a single lot or on the basis of test records of the source.1.3This Standard also addresses preblending of specific supplementary cementing materials as defined under Clause 3.A362-1.1General This Standard addresses the definition of blended hydraulic cement; its chemical and physical requirements; the tests required; the procedures for inspection and sampling; the units of measurement; and its packaging, marking, and storage. The intent of this Standard is to define the properties of the blended product; it does not include cases in which the supplementary cementing material is stored, weighed, and batched separ ately from the cement in the concrete mix at a concrete production facility or at a job site.1.2 1.2.1 Basic Types The four types of blended hydraulic cement addressed in this Standard are (a) Portland blast furnace slag cement (S); (b) Portland flyash cement (F); (c) Portland silica fume cement (SF); and (d) ternary blend cement.1.2.2Nomenclature The naming practice is as follows: TE-A/B, where T = the equivalent performance to Type 10, 20, 30, 40, or 50 Portland cement; E = an indication that the cement has equivalent performance for the properties stipulated in Table 2; A = the predominant supplementary material; and B = the secondary supplementary material, only specified in a ternary blend.Examples: 10E-S - a Portland blast furnace slag cement having equivalent perform ance to that of a Type 10 Portland Cement. 40E-F - a Portland flyash cement having equivalent performance to that of a type 40 Portland cement; and 50E-S/SF - a ternary blend cement having equivalent performance to that of a Type 50 Portland cement with slag being the predominant supplementary cementing material and silica fume the secondary supplementary cementing material. Note: Blended hydraulic cement may develop lower early compressive strengths than the corresponding Portland cement. This effect is more pronounced as the proportion of slag or fly ash is increased. When a Portland silica fume cement is used, experience indicates that early strengths are frequently higher than the strength of the corresponding Portland cement.A363-1.1This Standard addresses the physical and chemical requirements for cementitious hydraulic slag.A456.1-1.1General Test methods in this Standard address the chemical analysis of hydraulic cement and supplementary cementing materials. At the discretion of the laboratory, alternative methods demonstrated to be of acceptable precision and bias that further satisfy the qualification criteria of Clause 3 may be used for analysis.1.2Test Frequencies Refer to Table 1 of CSA Standard A456.2-A1 for frequencies of chemical testing.A456.2-1.1This Standard sets out the various physical test methods for hydraulic cements, supplementary cementing materials, and cementitious hydraulic slag. It is divided into tes t methods and standard practices numbered A1 to A6, B1 to B7, and C1 to C8, representing dry tests, paste tests, and mortar tests, respectively. Each test method or standard practice contains a s cope, referenced documents, summary of test, equipment and materials, and test procedure. The test methods are in the following order:A1Standard Practice for Sampling, Testing, and Inspection; A2Test Method for Determination of Density of Cement; A3Test Method for Determination of Cement Fineness by Wet-Sieving; A4Glass Content by the Modified McMaster Method; A5Rapid Test Method for Determining the Tendency of Silica Fume to Entrap Air in Mortar or Concrete; A6Test Method for Verification of Sand; B1Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Test Method for Determination of Normal Consistency; B2Test Method for Time of Set of Hydraulic Cement Paste - Vicat Needles; B3Test Method for Time of Set of Hydraulic Cement Paste - Gillmore Needles; B4Test Method for Determination of Atmospheric Steam Expansion; B5Test Method for Determination of Autoclave Expansion; B6Test Method for Determination of Early Stiffening of Cement Paste; B7Test Method for Determination of Heat of Hydration; C1Standard Practice for Mechanical Mixing of Hydraulic Cement Mortars and Test Method for Determination of Flow; C2Test Method for Determination of Compressive Strengths; C3Test Method for Determination of Water Retention of Masonry Mortar; C4Test Method for Determination of Air Content; C5Test Method for Determination of Sulphate Expansion; C6Test Method for Determination of Sulphate Resistance; C7Test Method for Determination of 28-Day Activity Index (Granulated Blast-Furnace Slag-Portland Cement); and C8Test Method for Determination of Sulphate Resistance of Mort ar Bars Exposed to Sulphate Solution.A456.3-1.1This Standard describes the materials and equipment used in testing hyraulic cements, supplementary cementing materials, and cementitious hydraulic slag.

Dokumentinformasjon

  • Standard fra CAN/CSA
  • Publisert:
  • Versjon: 0
  • Varetype: IS
  • Products.Specs.pages

Produktrelasjon