CAJ | 학술논문

水泥抗压强度的测定过程有成型、养护、破型三个主要环节。各环节的试验条件不同，将直接影响抗压强度的测定结果。研究了水泥试件成型过程中流动度、试件尺寸、表面状态等试验条件对试件抗压强度测定结果的影响。结果表明：在一定范围内水灰比与抗压强度呈正相关关系，即水灰比越大，其流动度越好，抗压强度越高，当超过这个范围后，随着水灰比的增大，抗压强度逐渐减小；随着试件尺寸逐渐变大，抗压强度依次降低；试模涂油量多少不同，导致试件表面状态存在差异，涂油量过多或过少都会使抗压强度的测定结果偏低。
수니항압강도적측정과정유성형、양호、파형삼개주요배절。각배절적시험조건불동，장직접영향항압강도적측정결과。연구료수니시건성형과정중류동도、시건척촌、표면상태등시험조건대시건항압강도측정결과적영향。결과표명：재일정범위내수회비여항압강도정정상관관계，즉수회비월대，기류동도월호，항압강도월고，당초과저개범위후，수착수회비적증대，항압강도축점감소；수착시건척촌축점변대，항압강도의차강저；시모도유량다소불동，도치시건표면상태존재차이，도유량과다혹과소도회사항압강도적측정결과편저。
Three main aspects of molding, conservation and breaking - type were involved in the testing about compressive strength of cement sample. Different experimental conditions directly influenced the results of compressive strength test. Effects of experimental conditions such as, fluidity, dimension and surface on cement sample compressive-strength in molding process were investigated. The results showed that water cement ratio had a significant linear correlation with compressive strength within a certain range. The bigger the water cement ratio, the better the fluidity and the higher compressive strength. Beyond the range of water cement ratio, compressive strength gradually decreased with the increase of water cement ratio, and remarkably decreased with increasing the sample block size. In addition, the fluctuation of compressive strength can also be caused by the difference of specimen surface with oil coated to varying degrees, which more or less oil would reduce cement compressive strength.