ASTM C563-17
Standard Guide for Approximation of Optimum SO3 in Hydraulic Cement

Standard No.
ASTM C563-17
Release Date
2017
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM C563-18
Latest
ASTM C563-20
Scope

3.1 The purpose of this guide is to estimate the SO3 content for a hydraulic cement that gives maximum performance. The value obtained is one way to establish an appropriate level of sulfate in the manufacture of cements specified in Specifications C150, C595, and C1157.

3.2 The SO3 content of a cement giving maximum performance is different at different ages, with different performance criteria and with different materials such supplementary cementitious materials and chemical admixtures. A manufacturer can choose the performance criteriato determine optimum SO3 content. This optimum SO3 content may be a compromise between different ages and different performance criteria.

Note 1: Typically, the optimum SO3 content is higher the later the age.

3.3 This guide indicates optimum SO3 content for cement in mortar made and cured at a standard temperature of 23.0 ± 2.0°C (73.5 ± 3.5°F). The optimum SO3 increases with increasing temperature and may increase when water-reducing admixtures are used.

3.4 It should not be assumed that the optimum SO3 estimated in this guide is the same SO3 content for optimum performance of a concrete prepared from the cement.

3.5 The guide is applicable to cements specified in Specifications C150, C595, and C1157.

1.1 This guide describes the determination of approximate optimum SO3 for maximum performance as a result of substituting calcium sulfate for a portion of the cement.

1.2 This guide refers to the sulfur trioxide (SO3) content of the cement only. Slag cements and occasionally other hydraulic cements can contain sulfide or other forms of sulfur. The determination of SO3 content by rapid methods may include these other forms, and may therefore produce a significant error. If a significant error occurs, analyze the cement for SO3 content using the reference test method of Test Methods C114 for sulfur trioxide.

1.3 Values stated as SI units are to be regarded as standard.

1.4 This standard does not purpo......

ASTM C563-17 Referenced Document

  • ASTM C109/C109M Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
  • ASTM C114 Standard Test Methods for Chemical Analysis of Hydraulic Cement
  • ASTM C1157 Standard Performance Specification for Hydraulic Cement
  • ASTM C1437 Standard Test Method for Flow of Hydraulic Cement Mortar
  • ASTM C150 Standard Specification for Portland Cement
  • ASTM C1702 Standard Test Method for Measurement of Heat of Hydration of Hydraulic Cementitious Materials Using Isothermal Conduction Calorimetry
  • ASTM C192/C192M Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory
  • ASTM C204 Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus
  • ASTM C305 Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
  • ASTM C39/C39M Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
  • ASTM C430 Standard Test Method for Fineness of Hydraulic Cement by the 45-956;m (No. 325) Sieve
  • ASTM C465 Standard Specification for Processing Additions for Use in the Manufacture of Hydraulic Cements
  • ASTM C471M Standard Test Methods for Chemical Analysis of Gypsum and Gypsum Products [Metric]
  • ASTM C595 Standard Specification for Blended Hydraulic Cements
  • ASTM C596 Standard Test Method for Drying Shrinkage of Mortar Containing Hydraulic Cement
  • ASTM C78 Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)

ASTM C563-17 history

  • 2020 ASTM C563-20 Standard Guide for Approximation of Optimum SO3 in Hydraulic Cement
  • 2019 ASTM C563-19 Standard Guide for Approximation of Optimum SO3 in Hydraulic Cement
  • 2018 ASTM C563-18a Standard Guide for Approximation of Optimum SO3 in Hydraulic Cement
  • 2018 ASTM C563-18 Standard Guide for Approximation of Optimum SO3 in Hydraulic Cement
  • 2017 ASTM C563-17 Standard Guide for Approximation of Optimum SO3 in Hydraulic Cement
  • 2016 ASTM C563-16 Standard Guide for Approximation of Optimum SO3 in Hydraulic Cement Using Compressive Strength
  • 2015 ASTM C563-15 Standard Test Method for Approximation of Optimum SO3 in Hydraulic Cement Using Compressive Strength
  • 2013 ASTM C563-13 Standard Test Method for Approximation of Optimum SO3 in Hydraulic Cement Using Compressive Strength
  • 2007 ASTM C563-07 Standard Test Method for Approximation of Optimum SO3 in Hydraulic Cement Using Compressive Strength
  • 2004 ASTM C563-04 Standard Test Method for Optimum SO3 in Hydraulic Cement Using 24-h Compressive Strength
  • 2003 ASTM C563-03 Standard Test Method for Optimum SO3 in Hydraulic Cement Using 24-h Compressive Strength
  • 2002 ASTM C563-02 Standard Test Method for Optimum SO3 in Hydraulic Cement Using 24-h Compressive Strength
  • 1996 ASTM C563-96 Standard Test Method for Optimum SO3 in Hydraulic Cement Using 24-h Compressive Strength
Standard Guide for Approximation of Optimum SO<inf>3</inf> in Hydraulic Cement


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