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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Immerse the electrodes into the solution, taking care that the stir bar does not strike the electrodes. Concrete farthest from a surface into which chloride has penetrated often provides c11152 data close to that of the originally placed fresh concrete.
ASTM C Test for Chloride in Mortar and Concrete | CTLGroup
Remove the beaker and wipe the electrodes with absorbent paper. Blast-furnace slag aggregates and cements contain sulfide sulfur in concentrations that can cause such interference and produce erroneously high test results.
Parte 1 de 2 Designation: Note 1 — Sieve size is identified by its standard designation in Specification E If you need more info or have any questions, please note the Lab ID number 37 and contact us at: NOTE 6—To prevent loss of chloride by volatilization, it is important to keep the beaker covered during heating and digestion.
In most cases, acid-soluble chloride is equivalent to total chloride. The titration may take place in a solution that contains a small amount of solid matter.
If the smell of hydrogen sulfide is strongly present, add 3 mL of hydrogen peroxide See Note 5.
Astm a Astm a Order Form 2 Email complete form to contact listed below. Directreading balances shall have a sensitivity not exceeding 0. Some values have only SI units because the inch-pound equivalents are not used in practice. However, some organic substances that may be introduced into mortar or concrete contain chloride that is initially acid-insoluble that can eventually ionize and thus become acid-soluble or water-soluble after a xstm of exposure in the very alkaline cement system.
ASTM Volume Chemical Society, Ast, DC.
Clean all sampling tools prior to each sampling operation See Note 4. A number in parentheses indicates the year of last reapproval.
Print and complete the following order form. Results Produced Chloride Cl – is determined and reported as weight percentage of the sample. For testing to meet water soluble specification limits, tests should c11152 performed on samples at least 28 days old.
NOTE 9—If the tip of the buret is out of the solution, any adhering droplet should be rinsed into the beaker with a few millilitres of water following each titration increment.
ASTM C1152.C1152M – 04 – Acid-Soluble Chloride in Mortar and Concrete
asm For cement products, chloride can also be reported as percentage of the cement component if the content is provided or determined. If the solution above the settled solids is not pink colored, add more nitric acid dropwise while stirring until a pink or reddish color persists, then add 10 additional drops of nitric acid and stir.
This solution is the standard and requires no further standardization.
Page and John S. The alternative designation in parentheses is for information only and does not represent a different standard sieve size. Unless otherwise indicated, it is intended that all reagents shall conform to the specifications of the Commit- tee onAnalytical Reagents of theAmerican C112 Society5. Excessive amounts of acid can erode the silver chloride coating on the silver billet electrode prematurely.
Any rapid weighing device that may be provided, such as a chain, damped motion, or heavy riders, shall not increase the basic inaccuracy by more than 0.
ASTM C / CM – 03 Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete
NOTE 8—It is advisable to maintain constant temperature during measurement, as the solubility of silver chloride c11522 markedly with temperature at low concentrations. Time for Results Please contact a CTLGroup chemical services representative or Project Manager to discuss your individual project needs and testing response times. A superscript epsilon indicates an editorial change since the last revision or reapproval. Use Specification limits in concrete are intended to minimize rebar corrosion.