Effects of High Temperatures on the Physical and Mechanical Properties of Carbonated Ordinary Concrete

Table 3

Grouping of specimens.

Group	Notation	Carbonation for 120 days	Number of specimens	Exposure temperature (°C)	Exposure time (h)	Cooling method
Group 1	C-T20	√	3	20	—	—
	C-T300E3W	√	3	300	3	Water
	C-T400E3W	√	3	400	3	Water
	C-T500E3W	√	3	500	3	Water
	C-T600E3W	√	3	600	3	Water
	C-T700E3W	√	3	700	3	Water
Group 2	T20	No carbonation	3	20	—	—
	T300E3W	No carbonation	3	300	3	Water
	T400E3W	No carbonation	3	400	3	Water
	T500E3W	No carbonation	3	500	3	Water
	T600E3W	No carbonation	3	600	3	Water
	T700E3W	No carbonation	3	700	3	Water
Group 3	C-T300E3A	√	3	300	3	Air
	C-T400E3A	√	3	400	3	Air
	C-T500E3A	√	3	500	3	Air
	C-T600E3A	√	3	600	3	Air
	C-T700E3A	√	3	700	3	Air
Group 4	C-T400E4W	√	3	400	4	Water
	C-T400E6W	√	3	400	6	Water
	C-T500E4W	√	3	500	4	Water
	C-T500E6W	√	3	500	6	Water
	C-T600E4W	√	3	600	4	Water
	C-T600E6W	√	3	600	6	Water
	C-T700E4W	√	3	700	4	Water
	C-T700E6W	√	3	700	6	Water

Note. Degree centigrade (°C) is adopted throughout the paper.