Meta-analysis on PET plastic as concrete aggregate using response surface methodology and regression analysis

Journal of Infrastructure Preservation and Resilience

Table 1 Literature for PET-CA expression

Source	No.	PET (%)	Size (mm)	Cement (kg/m³)	CA (kg/m³)	FA (kg/m³)	W/C ratio	28-day Compressive Strength (MPa)
Abu-Saleem et al., 2021 [35]	1	0	8	302	859	886	0.75	27.46
Abu-Saleem et al., 2021 [35]	2	15	8	302	859	886	0.75	23.63
Abu-Saleem et al., 2021 [38]	3	15	8	302	859	886	0.75	21.37
	4	0	8	327	877	906	0.7	32.00
	5	10	8	327	877	906	0.7	29.20
Bamigboye et al., 2022 [23]	6	0	8	320	1280	640	0.5	26.48
	7	10	8	320	1280	640	0.5	16.43
	8	20	8	320	1280	640	0.5	19.96
	9	30	8	320	1280	640	0.5	8.61
	10	100	8	320	1280	640	0.5	3.59
Bachtiar et al., 2020 [39]	11	0	18	469	604	1122	0.48	18.20
	12	25	18	469	604	1122	0.48	12.73
	13	50	18	469	604	1122	0.48	12.30
	14	75	18	469	604	1122	0.48	10.61
	15	100	18	469	604	1122	0.48	10.18
Islam et al., 2016 [24]	16	0	18	462	1024	534	0.42	33.52
	17	20	18	462	1024	534	0.42	30.28
	18	30	18	462	1024	534	0.42	27.06
	19	40	18	462	1024	534	0.42	25.95
	20	50	18	462	1024	534	0.42	20.47
	21	0	18	449	996.4	519.8	0.48	32.13
	22	20	18	449	996.4	519.8	0.48	27.66
	23	30	18	449	996.4	519.8	0.48	26.44
	24	40	18	449	996.4	519.8	0.48	24.48
	25	50	18	449	996.4	519.8	0.48	19.49
	26	0	18	432	958	500	0.57	31.71
	27	20	18	432	958	500	0.57	24.20
	28	30	18	432	958	500	0.57	24.31
	29	40	18	432	958	500	0.57	22.88
	30	50	18	432	958	500	0.57	17.36
Osubor et al., 2019 [40]	31	0	0	320	1280	640	0.6	21.33
	32	5	3	320	1280	640	0.6	20.45
	33	10	3	320	1280	640	0.6	18.10
	34	15	3	320	1280	640	0.6	16.85
	35	20	3	320	1280	640	0.6	14.97
	36	5	5	320	1280	640	0.6	18.70
	37	10	5	320	1280	640	0.6	17.05
	38	15	5	320	1280	640	0.6	15.65
	39	20	5	320	1280	640	0.6	14.31
	40	5	7	320	1280	640	0.6	17.20
	41	10	7	320	1280	640	0.6	16.75
	42	15	7	320	1280	640	0.6	14.25
	43	20	7	320	1280	640	0.6	13.74