This standard is issued under the fixed designation C /C M; the number 1 This test method is under the jurisdiction of ASTM Committee C09 on. Baixe grátis o arquivo ASTM CCM – 04 _ Acid-Soluble Chloride in Mortar and enviado por Juliano no curso de Engenharia Civil na. ASTM C Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete.
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Dissolve in water and dilute to exactly 1 L in a volumetric flask and mix thoroughly. CM or as required for the purpose of the investigation.
Other grades may be used, provided it is first ascertained that the reagent is of sufficiently high purity to permit its use without lessening the accuracy of the determination. Submit the concrete mix design if the results will be expressed as Cl – percentage of cement.
Note 1 — Sieve size is identified by its standard designation in Specification E To prevent sample contamination, avoid contact of sample with hands and other sources of perspiration. Heat the covered beaker rapidly to boiling and remove from hot plate. Asfm the filtrate to room temperature.
ASTM C1152.C1152M – 04 – Acid-Soluble Chloride in Mortar and Concrete
Disperse the sample with 75 mL of water. Thus, several such samples should be combined, or the data used with care. For testing to astmm water soluble specification limits, tests should be performed on samples at least 28 days old.
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ASTM C Test for Chloride in Mortar and Concrete | CTLGroup
Immerse the electrodes into the solution, taking care that the stir bar does not strike the electrodes. The exact normality shall be calculated from the average of three determinations as follows: Do not allow sample to boil more than a few seconds See Note 6.
Dilute to 1 L in a volumetric flask and mix thoroughly. Samples should be oven-dried and ground to pass a No. Such chloride will be detected by the use of this method.
Use Specification limits in concrete are intended to minimize rebar corrosion. The titration may take place in a solution that contains a small amount of solid matter. Some values have only SI units because the inch-pound equivalents are not used in practice. Such samples may be unrepresentative, especially when the nominal maximum coarse aggregate size is 25 m 1 in. Ten seconds of boiling is sufficient.
This solution is the standard and requires no further standardization. If you need more info or have any questions, please note the Lab C152 number 37 and contact us at:. The volume should not exceed mL. Commercially available standard solutions may be used provided the normality is checked according to the standardization procedure.
The cooling water from core cutting may dissolve some of the chloride. Conventional two-pan balances shall have a maximum sensibility reciprocal of 0.
ASTM CCM – 04 – Acid-Soluble Chloride in Mortar and Concrete
Instructions Sample mass should be at least 25 grams 1 oz of dried, finely powdered sample. Directreading balances shall have a sensitivity not exceeding 0. A digital readout is preferred but not required. The alternative designation in parentheses is for information only and does not represent a different standard sieve size.
Make a blank determination using 75 mL of water in place of sample.