Is there any kind of laboratory experiment set up to to evaluate the plastic shrinkage cracking of concrete by the rectangular shrinkage mould?
I can prefer a image anaylsis software to quantify the dimensions and areas of the cracks on their pictures. You can reach a related software below. **It is free and easy to use
https://imagej.nih.gov/ij/download.html
We are using ASTM C1579-06 also for concrete. We have used aggregates up to 22 mm.
In short, ASTM C1579-06 is the standard for this test, as Pietro said. I recommend you to read the following paper, which summarizes this topic pretty well:
https://link.springer.com/chapter/10.1007/978-94-007-4566-7_57
If i want to evaluate Thermal cracking behavior of concrete through the same standard test, what parameters that i have to change? Only the environmental temperature change in an environmental chamber is sufficient? Or is there anyway to evaluate thermal cracking from the same apparatus?
The apparatus according to ASTM C1579-06 can only be used for plastic shrinkage cracking. If you change the environmental temperature in that test, you will only change the rate of evaporation and the plastic shrinkage response in general, not evaluate thermal cracking. For thermal cracking, you should use a TSTM (or maybe a passive linear rig is enough) or a system based on restrained (invar) rings. These are methods that address deformations and cracking of concrete after setting.
Pabasara Rathnaweera ..........Good question… Please check references below.. hope it will be helpful for you…
Regards…
http://www.ccaa.com.au/imis_prod/documents/Library%20Documents/CCAA%20Datasheets/DS2005PlasticShrinkageTBR.pdf
https://www.diva-portal.org/smash/get/diva2:971011/FULLTEXT01.pdf
You can find the utilized methods in the second chapter of my PhD thesis, added to the attachment.
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