CAJ | 학술논문

混凝土是一种非匀质脆性材料,由骨料、水泥石以及存其中的气体和水组成.在温度和湿度的变化条件下,硬化病产生体积变形,由于各种材料变形不一致,互相约束而产生初始应力,造成在骨料与水泥石粘结面或水泥石本省之间出现肉眼看不见的微细裂缝,一般称为微裂.这种微细裂缝的分布是不规则的,且不连贯,但在荷载作用下货进一步产生温差,干缩的情况下,裂缝开始扩展,并逐渐互相串通,从而出现较大的肉眼可见的裂缝(一般肉眼可见裂缝宽度为0.03~0.05mm),称为宏观裂缝,即通常所说的裂缝.因此混凝土的裂缝,实际是微裂的扩展.
혼응토시일충비균질취성재료,유골료、수니석이급존기중적기체화수조성.재온도화습도적변화조건하,경화병산생체적변형,유우각충재료변형불일치,호상약속이산생초시응력,조성재골료여수니석점결면혹수니석본성지간출현육안간불견적미세렬봉,일반칭위미렬.저충미세렬봉적분포시불규칙적,차불련관,단재하재작용하화진일보산생온차,간축적정황하,렬봉개시확전,병축점호상천통,종이출현교대적육안가견적렬봉(일반육안가견렬봉관도위0.03~0.05mm),칭위굉관렬봉,즉통상소설적렬봉.인차혼응토적렬봉,실제시미렬적확전.
Concrete is a kind of heterogeneous brittle material, consisting of aggregate, cement and the gas and water.Changes in the conditions of temperature and humidity, sclerosis has volume deformation, due to a variety of material deformation is not consistent, mutual constraints arising from the initial stress, resulting in cracks look fine invisible naked eye in the bond between aggregate and cement stone or cement the province, commonly known as the micro crack.The micro crack distribution is irregular, and incoherent, but the difference in loading the goods, dry shrinkage of the circumstances, the cracks begin to expand, and gradually collude with each other, thus a greater visible cracks (width is generally visible cracks as the 0.03~0.05mm), known as the macro cracks, which are the crack.Therefore, the crack of the concrete, practically is an extension of micro crack.