Comparison of mechanical and physical properties of SBR-polymer modified mortars using recycled waste materials
Comparison of mechanical and physical properties of SBR-polymer modified mortars using recycled waste materials
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回收废旧材料SBR聚合物改性砂浆力学物理性能比较
DOI：
10.1016/j.jiec.2008.02.009
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发表时间：
2008
影响因子：
6.1
通讯作者：
Y. Ko
中科院分区：
文献类型：
--
作者：
Eui;Y. Ko
以再生混凝土细集料(WCFA)和人造大理石废弃细集料(AMWFA)为原料制备聚合物改性砂浆，并对其再生利用的可行性进行了研究。回收材料的替代率也发生了变化，以考察其对机械和物理性能的影响。在不添加丁苯橡胶(SBR)胶乳的情况下，随着AMWFA或WCFA在砂浆中的取代率的增加，水灰比增加。WCFA和AMWFA都加入了SBR，提高了空气含量。SBR的加入降低了胶料的抗压强度。WCFA和AMWFA取代率越高，抗压强度越低。AMWFA的抗压强度在耐热水试验后显著降低，而WCFA的抗压强度在耐热水试验后略有提高。随着WCFA或AMWFA取代率的增加，抗折强度和抗压强度都有所下降。
Polymer modified mortars using either recycled waste concrete fine aggregate (WCFA) or artificial marble waste fine aggregate (AMWFA) were prepared and investigated for the purpose of feasibility of recycling. The replacement ratio of recycled materials also changed to investigate the effect of it on mechanical and physical properties. The water–cement ratio was increased as the replacement ratio of either AMWFA or WCFA in mortar in the absence of styrene-butadiene rubber (SBR) latex. The presence of SBR for both WCFA and AMWFA gave the increase of the air content. The compressive strength decreased in the presence of SBR. The higher replacement ratio of WCFA and AMWFA lowered the compressive strengths significantly. The compressive strength of AMWFA was significantly lowered after the hot water resistance test, whereas that of WCFA was slightly increased after the hot water resistance test. As the replacement ratio of either WCFA or AMWFA increased, the flexural strength decreased as well as compressive strength.