CAJ | 학술논문

采用水洗、NaOH溶液、KH560溶液、KH570溶液以及自制改性剂对橡胶颗粒进行改性，测试橡胶混凝土的抗压强度和劈拉强度，结果显示NaOH溶液及KH570溶液改性效果相对较好，其中KH570溶液的改性效果最好；NaOH溶液的最优浓度为20%， KH570的最优质量分数为1%。根据表面活性剂理论，配制了3种自制改性剂，其中改性剂1（甲19-1）的效果最好。通过扫描电镜观察橡胶颗粒水洗、无机改性前后的表面特征，发现水洗处理可以去除橡胶颗粒的表面的杂质，无机改性的作用是通过腐蚀橡胶颗粒表面的添加剂，使橡胶颗粒表面粗糙度增加。
채용수세、NaOH용액、KH560용액、KH570용액이급자제개성제대상효과립진행개성，측시상효혼응토적항압강도화벽랍강도，결과현시NaOH용액급KH570용액개성효과상대교호，기중KH570용액적개성효과최호；NaOH용액적최우농도위20%， KH570적최우질량분수위1%。근거표면활성제이론，배제료3충자제개성제，기중개성제1（갑19-1）적효과최호。통과소묘전경관찰상효과립수세、무궤개성전후적표면특정，발현수세처리가이거제상효과립적표면적잡질，무궤개성적작용시통과부식상효과립표면적첨가제，사상효과립표면조조도증가。
Modifying the rubber particles through solution of clear water、NaOH、KH560、KH570 and homemade modifier,and testing the compressive strength and splitting tensile strength of rubber concrete,the results showed that the modification effects of NaOH solution and KH570 solution is relatively better,and KH570 solution is the best. The optimal concentration of NaOH solution is 20%,while the op-timum mass fraction of KH570 solution is 1%. According to the theory of surfactant,we prepare three kinds of homemade modifier,and the modified agent 1(Jia 19-1)works best..By scanning electron microscopy to observe the surface features of the rubber particles modified through clear water and inorganic modifier,we can see that the effect of water processing is to get rid of the impurity on the surface of the rubber particles,and the effect of inorganic modifier is to make rubber particle surface roughness increase by corrosion on the surface of the rubber particles additives.