I need a suitable standard test method for this purpose.
Dear Mohammadh
Please see the attached links that may be useful for this purpose.
Best regards
https://www.understanding-cement.com/sulfate.html
https://ascelibrary.org/doi/abs/10.1061/(ASCE)0887-3828(2000)14:3(89)
http://www.concrete.org.uk/fingertips-nuggets.asp?cmd=display&id=836
Article The confused world of sulfate attack on concrete
Article An effective diffusivity for sulfate transport into concrete
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.152.4715&rep=rep1&type=pdf
Warm Greetings!
Dear scholar, kindly check the below link.
https://www.tmr.qld.gov.au › busind › Materials › Materials-testing-manual
Dear Muhammad,
BS1881: Part 124:1988 is a suitable standard you can follow up.
Sulfate content of finely ground hardened concrete is determined gravimetrically as barium sulfate following hydrochloric acid extraction and precipitation of the sulfate with barium chloride solution.
Sulfates are found in concrete either due to ingress into a hardened concrete from an external source or from being cast in form a soluble source during mixing. In either case, the result is a possibly deleterious expensive effect which in turn may cause disintegration of the matrix of the concrete or cracking of the concrete, both leading to a reduction in overall strength of the concrete element.
Testing can be carried out on concrete dust or lump/core samples, the result being expressed as the percentage sulfate by mass of cement in a sample, industry standards recommending a limit of 4.0% for this value. Testing can be carried out using BS1881: Part 124:1988 or by ICP methods.
Hope it is helpful to you.
Ashish
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