The excessive production of construction waste is a significant concern as it requires proper disposal and may become economically unfeasible. Reusing construction waste in producing new concrete can substantially reduce the disposal requirements of construction waste. In addition, this results in a sustainable solution for the rapidly depleting natural resources of concrete. Pervious concrete may contain up to 80% coarse aggregates and could be an exceptional host for reusing construction waste. This study aimed to investigate the mechanical properties of pervious concrete constructed with natural and recycled aggregates. The substandard properties of recycled aggregates were improved by adding natural fibers from sackcloth. This study presents an experimental program on 45 samples of pervious concrete with air void ratios and the size of coarse aggregates as the parameters of interest. The compressive strength of the pervious concrete decreased by increasing the air void ratio regardless of the size of the aggregates. The type of aggregates did not influence the permeability of pervious concrete, and the maximum temperature in pervious concrete increased as the quantity of air void ratios increased. The decrease in compressive strength was 40–60% as the void ratio was increased from 10–30% for all types of concrete mixes, such as natural and recycled aggregates. The permeability of small-size aggregates with 10% designed air void ratios for natural and recycled aggregates with sackcloth was 0.705 cm/s.

Urban green spaces are crucial for the exchange of energy fluxes, particularly sensible heat (Q_H) and latent heat (Q_E) fluxes. Therefore, this study aimed to investigate the characteristics of plant communities in urban green areas that affect turbulent fluxes, specifically Q_H and Q_E. The energy balance was measured using an eddy covariance system tower set up in three green areas at Kasetsart University: the Varunawan Garden (S1), the 100-Year Garden of Luang Suwan Vajokkasikit (S2), and the Phaholyothin Garden (S3). The results show that the canopy coverages of trees in S1, S2, and S3 were 526.23, 895.81, and 756.70 m², respectively. The Bowen ratios (Q_H/Q_E) during the daytime in S1, S2, and S3 were 1.75, 1.09, and 1.43, respectively. These relationships suggest that dense trees, a dense canopy layer top, and the presence of water sources within the green areas resulted in a higher latent heat flux and a lower proportion of sensible heat flux. The findings of this study can be used as a guideline for the development and improvement of plant community structures in green areas within urban climate change adaptation.