| Plasticity | Swelling | CBR | UCS | OMC | MDD | Reference |
Lime | Increase/ Reduce | Reduce | Increase | Increase | Increase/Decrease | Increase | Ali and Yousof, 2019 [36] ; Andavan and Pagadala, 2020 [41] ; Asgari et al., 2015 [34] ; Krithiga et al., 2017 [40] ; Navale et al., 2016 [43] ; Okonkwo and Kennedy, 2023 [4] ; Rai et al., 2021 [27] ; Sharma and Hymavathi, 2016 [28] ; Shekhar and Saxena, 2018 [15] ; Talabi et al., 2019 [42] ; Zhou et al., 2019 [38] |
Cement | Increase | Reduce | Increase | Increase | Increase/ Decrease | Increase | Bayat et al., 2015 [35] ; Mahedi et al., 2020 [14] ; Nguyen and Phan, 2021 [39] ; Okonkwo and Kennedy, 2023 [4] ; Rai et al. [27] ., 2021; Sharma et al., 2018 [28] ; Shekhar and Saxena, 2018 [15] ; Talabi et al., 2019 [42] |
Fly ash | Increase | Reduce | Increase | Increase | Increase | Increase | Andavan and Pagadala, 2020 [41] ; Krithiga et al., 2017; Mir, 2015; Navale et al., 2016 [43] ; Nguyen and Phan, 2021 [39] ; Shekhar and Saxena, 2018 [15] ; Teerawattanasuk and Voottipruex, 2019 [37] ; Zhou et al., 2019 [38] |