As researchers using ASTM C for sulfate resistance test for concrete. The size of the cube is x x mm. But ASTM C gives guidelines for. Table 1 Criticism of ASTM Sulfate Durability Tests (ASTM C and ASTM C) .. 8. Table 2 Designation, Classification, and Chemical Oxide Analysis of. C (ASTM a) Type II cement (moderate sulfate resistance) or Type V . chosen based on the ASTM C (ASTM b) specifications are shown in.
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Results Produced Length change of mortar bars immersed in sulfate solution.
Testing goes to 1 year. Seal the container with a lid so that the sulfate solution cannot evaporate.
Method C is suitable for evaluating portland cements but not blended cements or blends of portland cement with pozzolans or slags. Further discussion of these and other technical issues is given in the Appendix. The length change of mortar bars immersed in sulfate solution is the indicator.
Combining values from the two systems may result in non-conformance with the standard. Enviado por Murilo flag Denunciar. Work Item s – proposed revisions of this standard.
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It is the responsibility of the user of d1012 standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Any anhydrous or hydrated sodium sulfate may be used if the water content of the salt is checked by loss on ignition and proper corrections made to account for the specified sulfate concen- tration.
Within the text, the inch-pound units are shown in brackets. Further discussion of these and other technical issues is given in the Appendix.
Significance and Use 3. Current edition approved Jan. Portland cements may be evaluated by ASTM Chowever C is not suitable for evaluating blended cements or blends of supplementary cementitious materials with ordinary portland cement.
A number in parentheses indicates the year of aastm reapproval. Link to Active This link will always route to the current Active version of the standard. Can extend time of testing for additional charge. Such chemicals shall conform to the specifica- tions of the Committee on Analytical Reagents for the American Chemical Society where such specifications are available.
Test Method C is suitable for evaluating portland cements but not blended cements or blends of portland cement with pozzolans or slags. Use This test provides a means of assessing the sulfate resistance of a mortar. Mix the solution on the day before use, cover, and store at Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Reagents and Materials 5. Last previous edition approved in as C — For mortar bars 25 by 25 qstm mm volume mLthis is to c102 of solution per mortar bar in the storage container.
ASTM C Hydraulic-Cement Mortars Exposed to a Sulfate | CTLGroup
When tests asym made that are expected to produce results that are close to an acceptance- rejection value, it is recommended that reagent grade chemi- cals be used. Sample Type portland cement, blended cements, and supplementary cementing materials blended with portland cement.
Historical Version s – view previous versions of standard. Maintain the volume proportion of sulfate solution to mortar bars in a storage container at 4.
ASTM C1012/C1012M – 18a
Other sulfate concentrations or other sulfates such as MgSO 4 may be used to simulate the environmental exposure of interest. Use a water-cement ratio by mass of 0. Determine the pH of asrm solution before use; reject the solution if the pH range is outside 6. The values shown in parentheses are for information purposes only. Unless otherwise directed the exposure solution contains moles of Na2SO4 per m3.