Research and evaluation on the proportioning of three phase conductive concrete
Based on the orthogonal experiments,using carbon fiber,steel fiber,and nano carbon black as ad-mixtures,the resistivity and compressive strength of specimens at each mix ratio were measured,and the re-sults were evaluated using the analytic hierarchy process and grey correlation method.The research results indi-cated that the resistivity increases with the increase of CF,SF,and NCB content.The compressive strength in-creases with the increase of CF and SF content,and decreases with the increase of NCB content.CF has the most significant impact on electrical resistivity and compressive strength.The percolation thresholds of conduc-tive concrete in the experiment are at CF,SF,and NCB dosages of 0.6 v%,0.3 v%and 0.6 w%,respectively.The comprehensive evaluation results showed that the conductive concrete has the best performance when the CF,SF,and NCB dosages are 0.9 v%,0.7 v%,and 0.6 w%,respectively,with a compressive strength in-crease of 31.8%and a resistivity decrease of 98.9%compared to the blank group.
万方数据
维普
