Temperature Characteristics of Porous Portland Cement Concrete during the Hot Summer Session

Table 1

Parameters of concrete.

Types of concrete	Particle size/mm	Porosity/%	Apparent density/kg·m^−3	Albedo	Emissivity	Thermal conductivity/W·m^−1·°C^−1	Specific heat/J·kg^−1·°C^−1	Coefficient of thermal storage/W·m^−2·°C^−1
	0.075–16.0	0.8	2100	0.4320	0.96	1.40 [9, 19]	1050 [9, 18]	14.99
	2.36–4.75	15.1	2048	0.3557	0.95	1.28	920	13.25
	4.75–9.50	18.2	1974	0.3401	0.94	1.26	900	12.77
	9.50–13.2	20.1	1928	0.3305	0.94	1.23	870	12.26
	13.2–16.0	21.8	1887	0.3219	0.93	1.22	860	12.01
	16.0–19.0	24.9	1812	0.3063	0.92	1.20	840	11.53