CAJ | 학술논문

通过混凝土的正交试验，分析了粉煤灰取代率、涤纶纤维长度、涤纶纤维掺量对于混凝土的抗压强度、劈裂抗拉强度和抗冲击强度的影响，并确定混凝土的最优配合比。试验结果表明：在掺入粉煤灰的涤纶纤维混凝土中，涤纶纤维的长度是影响混凝土性能的最大因素，其次是涤纶纤维的体积掺量，最后是粉煤灰取代率。通过按最优组配合比生产的混凝土，其劈裂抗拉强度及抗冲击强度皆强于素混凝土，只有抗压强度低于素混凝土。
통과혼응토적정교시험，분석료분매회취대솔、조륜섬유장도、조륜섬유참량대우혼응토적항압강도、벽렬항랍강도화항충격강도적영향，병학정혼응토적최우배합비。시험결과표명：재참입분매회적조륜섬유혼응토중，조륜섬유적장도시영향혼응토성능적최대인소，기차시조륜섬유적체적참량，최후시분매회취대솔。통과안최우조배합비생산적혼응토，기벽렬항랍강도급항충격강도개강우소혼응토，지유항압강도저우소혼응토。
Through the orthogonal experiment of concrete, and analyzes the fly ash replacement ratio, length of polyester fi-ber, polyester fiber content for the concrete compressive strength, splitting tensile strength and impact strength of the in-fluence, and the optimal mixture ratio of concrete were deter-mined. Experimental results show that: in polyester fiber con-crete mixed with fly ash, polyester fiber length is one of the big-gest factors affecting concrete performance and the second is pol-yester fiber volume content, the last is the replace rate of fly ash. By pressing the optimal set of mix proportion of concrete, the splitting tensile strength and impact strength are stronger than the plain concrete, only compressive strength is lower than the plain concrete.