CAJ | 학술논문

为了研究粉煤灰掺量和沙漠砂替代率对沙漠砂混凝土力学性能影响，进行不同粉煤灰掺量和沙漠砂替代率的沙漠砂混凝土28 d抗压强度和28 d劈裂拉伸强度试验研究，分析粉煤灰掺量和沙漠砂替代率对沙漠砂混凝土28 d的抗压强度和劈裂拉伸强度的影响规律。实验结果表明：随着沙漠砂替代率增加，沙漠砂混凝土抗压强度和劈裂拉伸强度均呈现先增大后减小趋势，沙漠砂替代率为20%时，沙漠砂混凝土抗压强度和劈裂拉伸强度均达到最大值；随着粉煤灰掺量增加，沙漠砂混凝土抗压强度和劈裂拉伸强度先增大后减小，粉煤灰掺量为10%时，沙漠砂混凝土抗压强度和劈裂拉伸强度达到最大值。试验结果可为沙漠砂在工程中的应用提供指导和借鉴。
위료연구분매회참량화사막사체대솔대사막사혼응토역학성능영향，진행불동분매회참량화사막사체대솔적사막사혼응토28 d항압강도화28 d벽렬랍신강도시험연구，분석분매회참량화사막사체대솔대사막사혼응토28 d적항압강도화벽렬랍신강도적영향규률。실험결과표명：수착사막사체대솔증가，사막사혼응토항압강도화벽렬랍신강도균정현선증대후감소추세，사막사체대솔위20%시，사막사혼응토항압강도화벽렬랍신강도균체도최대치；수착분매회참량증가，사막사혼응토항압강도화벽렬랍신강도선증대후감소，분매회참량위10%시，사막사혼응토항압강도화벽렬랍신강도체도최대치。시험결과가위사막사재공정중적응용제공지도화차감。
In order to study the influence of fly ash dosage and desert sand replacement ratio on the mechanical properties of desert sand concrete, experiments on the 28 d compressive strength and splitting tensile strength of desert sand concrete with different fly ash dosage and desert sand replace-ment ratio were conducted. The influence of fly ash dosage and desert sand replacement ratio on the 28 d compressive strength and splitting tensile strength of desert sand concrete was analyzed. Experi-ment results show that with the increase of desert sand replacement ratio, the 28 d compressive strength and splitting tensile strength of desert sand concrete increase first and then decline. When desert sand replacement ratio amounts to 20%, the 28 d compressive strength and splitting tensile strength of desert sand concrete reaches the maximum. With the enhancement of fly ash dosage, the 28 d compressive strength and splitting tensile strength of desert sand concrete also increase first and then decline. When fly ash dosage amounts to 10%, the 28 d compressive strength and splitting ten-sile strength of desert sand concrete reaches the maximum, which provides guidance for the engi-neering application of desert sand.