ASTM C Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete. Lab ID: Use Specification limits in concrete are intended to minimize. Buy ASTM C/CMe1 Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete from SAI Global. ASTM-C – Download as PDF File .pdf), Text File .txt) or read online.
|Country:||Bosnia & Herzegovina|
|Published (Last):||7 March 2007|
|PDF File Size:||11.28 Mb|
|ePub File Size:||3.54 Mb|
|Price:||Free* [*Free Regsitration Required]|
Dissolve in water and dilute to exactly 1 L in a volumetric flask and mix thoroughly. In most cases, acid-soluble chloride is equivalent to total chloride. These notes and footnotes shall not zstm considered as requirements of this standard. To prevent sample contamination, avoid contact of sample with hands and other sources of perspiration. A slurry that is only slightly acidic is sufficient.
The exact normality shall be calculated from the average of three determinations as follows: Samples should be oven-dried and ground to pass a No. Such chloride will be detected by the use of this method. The titration may take place in a solution that contains a small amount of solid matter. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Other grades may be used, provided it is first asttm that the reagent is of sufficiently high purity to permit its use without lessening the accuracy of the determination. A number in parentheses indicates the year of last reapproval. Historical Version s – view previous versions of standard. NOTE 7—It is not necessary to clean all the slurry residue from the sides of the beaker, nor is it necessary that the filter remove all the fine material.
Penetration of deicer salt and seawater can be assessed by profiling chloride concentration at various positions in the sample. Blast-furnace slag aggregates and cements contain sulfide sulfur in concentrations that can cause such interference and produce erroneously high test results.
ASTM C Test for Chloride in Mortar and Concrete | CTLGroup
These notes and footnotes atsm not be considered as requirements of this standard. NOTE 6—To prevent loss of chloride by volatilization, it is important to keep the beaker covered during heating and digestion.
Heat the covered beaker rapidly to boiling and remove from hot plate. Treatment with hydrogen peroxide, as discussed in Test Methods C, is used to eliminate such interference.
Time for Results Please contact a CTLGroup chemical services representative or Project Manager to discuss your individual project needs and testing response times. Note 1 — Sieve size is identified by its standard designation in Specification E Order Form 2 Email complete form to contact listed below. Ashm 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.
Procedures for this method of sampling are as follows: Place the beaker on a magnetic stirrer and add a TFE-fluorocarbon coated stir bar.
ASTM C1152.C1152M – 04 – Acid-Soluble Chloride in Mortar and Concrete
Instructions Sample mass should be at least 25 grams 1 oz of dried, finely powdered sample. NOTE 8—It is advisable to maintain constant temperature during measurement, as the solubility of silver chloride varies markedly with temperature at low concentrations.
Record the approximate millivoltmeter reading. Astm c astm normas fibra 1c152 vidrio. For cement products, chloride can also be reported as percentage of the cement component if the content is provided or determined. The cooling water from core cutting may dissolve some of the chloride. Do not allow sample to boil more than a few seconds See Note 6.
Concrete farthest from a surface into which chloride has penetrated often provides chloride data close to that of the originally placed fresh concrete. Immerse the electrodes into the solution, taking care that the xstm bar does not strike the electrodes. Such samples may be unrepresentative, especially when the nominal maximum coarse aggregate size is 25 m 1 in.
ASTM C / CM – 03 Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete
Link to Active This link will always route to the current Active version of the standard. Clean all sampling tools prior to each sampling operation See Note 4. Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee C Transfer the filtrate from the flask to a mL beaker and rinse the flask once with water. 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.
Dilute to 1 L in a volumetric flask and mix thoroughly. Add 3 drops of methyl orange indicator to the beaker and stir.