用自行设计的模具制样,并进行人造草丝纤维的拔出实验,考察了养护时间,埋长及纤维截面对纤维拔出力以及界面粘结强度的影响.结果表明,纤维与水泥的粘结强度,随着养护时间的增大而增大,在第3d以后基本趋向一极值;粘结强度随着埋长的增大略有下降;单片丝与水泥的粘结强度最大,单丝次之,加筋丝最小.提出一种溶胀法表面接枝丙烯酸的方法,改善人造草丝纤维与水泥间的粘结性能,并分析比较了化学接枝和物理溶胀对粘结强度的影响程度.
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