
Jul 20 2021 The main mineral composition of CAC tested by QXRD is summarized in Table 2 Q235 ordinary round steel bar was used as the embedded steel and its tensile strength was 412 MPa The chemical composition of the steel bar is shown in Table 3 Sand and deionized water were also employed Chemically pure NaCl reagent was utilized as the chloride source For creating the geopolymer cement paste a concentration of NaOH 10M was used with a ratio of watersolid 04 and a ratio of Na 2 SiO 3 NaOH 1 using curring at room temperature The results showed the geopolymer pastes have a compressive strength of 181 MPa and 215 MPa after 7