CAJ | 학술논문

通过ISO标准砂与机制砂椭圆环开裂时间测试以及干缩与质量损失关系的分析，提出评价砂浆开裂敏感性的指标，即砂浆初始开裂时间和干缩-质量损失率双参数法，这不仅适用于河砂砂浆开裂敏感性的判定，对机制砂砂浆亦同样有效。
통과ISO표준사여궤제사타원배개렬시간측시이급간축여질량손실관계적분석，제출평개사장개렬민감성적지표，즉사장초시개렬시간화간축-질량손실솔쌍삼수법，저불부괄용우하사사장개렬민감성적판정，대궤제사사장역동양유효。
Through the testing of ellipse-ring cracking time on river-sand and manufactured- sand mortar, and the analysis of relationship between dry shrinkage and mass loss, the index is put forward to elevate the cracking sensitivity of mortar, namely the double parameter method of initial cracking time and dry shrinkage-mass loss rate, which is not only suitable for river-sand mortar to determine cracking sensitivity of mortar, but also manufactured-sand mortar is equally ef-fective.