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. 2018 May 23;10(6):565. doi: 10.3390/polym10060565

Figure 13.

Figure 13

Strain evolution of unstrengthened blocks during: (i) two weeks of storage in the lab environment; (ii) exposure to constant temperature (20C) and a variety of constant RH ranging from 36–100%; (iii) two weeks of storage in the lab environment.