From this figure, it can be seen that when RSC is equal to 0, the stress-strain curve contains the stress drop section after the stress plateau stage; when RCS is equal to 0.1, the axial stress keeps almost unchanged after yielding, and the stress plateau can be seen on the stress-strain curve; when RSC is greater than or equal to 0.2, after yielding, the axial stress also shows an increasing trend after yielding, but with a significantly declined slope.
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Compression-Softening Bond Model for Non-Water Reactive Foaming Polyurethane Grouting Material.
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