ASTM C88-13
Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate

Standard No.

ASTM C88-13

Release Date

2013

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM C88/C88M-18

Latest

ASTM C88/C88M-24

Scope

3.1 This test method provides a procedure for making a preliminary estimate of the soundness of aggregates for use in concrete and other purposes. The values obtained may be compared with specifications, for example Specification C33, that are designed to indicate the suitability of aggregate proposed for use. Since the precision of this test method is poor (Section 12), it may not be suitable for outright rejection of aggregates without confirmation from other tests more closely related to the specific service intended.

3.2 Values for the permitted-loss percentage by this test method are usually different for fine and coarse aggregates, and attention is called to the fact that test results by use of the two salts differ considerably and care must be exercised in fixing proper limits in any specifications that include requirements for these tests. The test is usually more severe when magnesium sulfate is used; accordingly, limits for percent loss allowed when magnesium sulfate is used are normally higher than limits when sodium sulfate is used.

Note 1—Refer to the appropriate sections in Specification C33 establishing conditions for acceptance of coarse and fine aggregates which fail to meet requirements based on this test.

1.1 This test method covers the testing of aggregates to estimate their soundness when subjected to weathering action in concrete or other applications. This is accomplished by repeated immersion in saturated solutions of sodium or magnesium sulfate followed by oven drying to partially or completely dehydrate the salt precipitated in permeable pore spaces. The internal expansive force, derived from the rehydration of the salt upon re-immersion, simulates the expansion of water on freezing. This test method furnishes information helpful in judging the soundness of aggregates when adequate information is not available from service records of the material exposed to actual weathering conditions.

1.2 The values given in parentheses are provided for information purposes only.

1.3 This standard does not purport to address the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM C88-13 Referenced Document

• ASTM C136 Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates
• ASTM C33 Standard Specification for Concrete Aggregates
• ASTM C670 Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
• ASTM C702 Standard Practice for Reducing Samples of Aggregate to Testing Size
• ASTM D75 Standard Practice for Sampling Aggregates
• ASTM E100 Standard Specification for ASTM Hydrometers
• ASTM E11 Standard Specification for Wire Cloth and Sieves for Testing Purposes
• ASTM E323 Standard Specification for Perforated-Plate Sieves for Testing Purposes

ASTM C88-13 history

• 2024 ASTM C88/C88M-24 Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate
• 2018 ASTM C88/C88M-18 Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate
• 2013 ASTM C88-13 Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate
• 2005 ASTM C88-05 Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate
• 1999 ASTM C88-99a Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate
• 1976 ASTM C88-76 Standard Test Method for Soundness Of Aggregates By Use Of Sodium Sulfate Or Magnesium Sulfate