CAJ | 학술논문

　　提出了一种水泥胶砂干燥收缩快速测定方法，并与现行标准JC/T 603-2004建立起关系。结果表明：高温低湿条件下水泥胶砂干燥收缩达到稳定所需的时间可大大缩短，由常温条件下：（22±2）℃，50％～55％ RH ，4个月左右缩短到了60℃烘箱条件下3周左右，80℃烘箱条件下2周左右；高温低湿条件下水泥胶砂干燥收缩明显降低，通过高温低湿快速测定方法，利用温湿度修正系数（60℃烘箱条件下约为1．60，80℃烘箱条件下约为2．15）可预测常温条件下水泥胶砂最终干燥收缩值。
　　제출료일충수니효사간조수축쾌속측정방법，병여현행표준JC/T 603-2004건립기관계。결과표명：고온저습조건하수니효사간조수축체도은정소수적시간가대대축단，유상온조건하：（22±2）℃，50％～55％ RH ，4개월좌우축단도료60℃홍상조건하3주좌우，80℃홍상조건하2주좌우；고온저습조건하수니효사간조수축명현강저，통과고온저습쾌속측정방법，이용온습도수정계수（60℃홍상조건하약위1．60，80℃홍상조건하약위2．15）가예측상온조건하수니효사최종간조수축치。
A rapid test method for drying shrinkage of cement mortar was put forward and compared with JC /T 603 -2004 standard test method .Results show that the time for the value of drying shrinkage of cement mortar achieving stability in environment of high tem-perature and low humidity shortens greatly from about four months at ± 2℃ in 50% ~55% RH environment to about three weeks at 60℃in <10% RH environment ,and even about two weeks at 80℃ in <10% RH environment .The value of drying shrinkage of cement mortar also decreases greatly in environment of high temperature and low humidity .The ultimate value of drying shrinkage of cement mortar at 22 ± 2℃ in 50% ~55% RH environment can be forecast with the rapid test method by correction coefficient of temperature and humidity . The correction coefficients of temperature and humidity at 60℃ in < 10% RH environment and at 80℃ in <10% RH environment are re-spectively about 1 .60 and 2 .15 .