Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar

Importancia y uso:

5.1 This test method is of significance in making a final determination of the acceptability of fine aggregates with respect to the requirements of Specification C33/C33M concerning organic impurities.

5.2 This test method is applicable to those samples which, when tested in accordance with Test MethodC40/C40M, have produced a supernatant liquid with a color darker than the standard listed in Table 1 of C40/C40M (Organic plate No. 3, Gardner Color Standard No. 14, Circular Disk No. 14 or prepared color solution).

5.3 Many specifications provide for the acceptance of fine aggregate producing a darker color in the Test Method C40/C40M test, if testing by this test method indicates the strength of the mortar cubes prepared with the unwashed fine aggregate is comparable to the strength of mortar cubes made with the washed fine aggregate.

Subcomité:

C09.20

Referida por:

C0897-15R20, C0144-18, C1761_C1761M-23, C0040_C0040M-20, C0040_C0040M-20, C0033_C0033M-24, C0404-24, C0040_C0040M-20, C0144-18, C0144-18

Volúmen:

04.02

Número ICS:

91.100.10 (Cement. Gypsum. Lime. Mortar)

Palabras clave:

aggregate; fine aggregate; organic impurities; mortar strength;