Barely Significant

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In the latter stages, however, when there are too few internal pores to accommodate new hydration products, internal stress is generated, which eventually further cracks; Up to a hydration age of 270 days, the compressive strength of cement-based materials increased continuously, but subsequently showed a decreasing trend, which is related to the effect of rehydration on the internal pore structure of cement-based materials.
Moreover, the simulated curve for the curing period of 28 days was more consistent with the measured values than that for 7 days, while the model fitting accuracy for 90 days achieved the best accuracy among the three groups, which indicated that the simulation accuracy of the model presented an increasing trend with the increase in the curing period. 4.