New Mortar Mixes with Chemically Depolymerized Waste PET Aggregates

Table 4

Results of flexural and compressive strength of cementitious pastes with different weight additions of DPET.

Cement paste	Sand type	DPET (%)	Flexural strength Rf (N/mm^2)	Compressive strength Rc (N/mm^2)
1	Normalized	—	10.02 ± 0.53	51.97 ± 1.32
2	Normalized	30	8.80 ± 0.25	42.06 ± 1.02
3	Unnormalized	—	6.87 ± 0.48	47.91 ± 0.89
4	Unnormalized	20	7.79 ± 0.50	35.82 ± 1.06
5	Unnormalized	40	6.77 ± 0.47	25.60 ± 0.89
6	Unnormalized	60	4.36 ± 0.31	18.78 ± 0.60
7	Unnormalized	80	3.32 ± 0.32	16.27 ± 0.95