CAJ | 학술논문

利用III级再生粗、细骨料制备C30和C40两种强度等级再生骨料混凝土，并分别掺加0和30%粉煤灰。测定该混凝土电通量，并分析再生粗、细骨料对混凝土抗氯离子性能影响规律。试验结果表明：随着再生骨料替代率增加，混凝土抗氯离子渗透性能逐渐减低，且对C40混凝土抗氯离子渗透性能影响较小；再生骨料混凝土中掺入30%粉煤灰，可有效改善其抗氯离子渗透性能。
이용III급재생조、세골료제비C30화C40량충강도등급재생골료혼응토，병분별참가0화30%분매회。측정해혼응토전통량，병분석재생조、세골료대혼응토항록리자성능영향규률。시험결과표명：수착재생골료체대솔증가，혼응토항록리자삼투성능축점감저，차대C40혼응토항록리자삼투성능영향교소；재생골료혼응토중참입30%분매회，가유효개선기항록리자삼투성능。
Mixing Class III recycled coarse and fine aggregate,C30 and C40 degree concrete recycled aggregate concrete were prepared with 0 and 30%fly ash amount of cementitious material respectively.Concrete electric fluxes were measured and analyzed for the rule of influence of Class III recycled aggregate on resistance of concrete to chloride penetration.The results indicate that with the increase of re-placement ratio of recycled aggregate,resistance of concrete to chloride penetration gradually reduced.Compared with C30 degree con-crete,C40 degree concrete was less affected by replacement ratio of recycled concrete.Resistance of C30 concrete to chloride penetration was significantly affected when replacement ratio of recycled aggregate beyond 15%.Recycled aggregate concrete incorporates with 30%amount of bonding materials,which can effectively improve resistance of concrete to chloride ion penetration.