CAJ | 학술논문

为了探究重金属铅对水泥土强度的影响，通过电阻率和无侧限抗压强度试验，研究了铅离子对水泥土强度和电阻率特性的影响规律，并且对其化学微观机理进行了简要分析。结果表明：在各个龄期下，水泥土的强度和电阻率都随着铅离子含量的增加先降低后升高再降低，无侧限抗压强度和电阻率都出现了峰值和谷值；在不同铅离子含量下，水泥土的强度和电阻率都随着龄期的增加而增长；电流频率对含铅水泥土的电阻率有着明显的影响规律，可将50 kHz至1 MHz范围内的电流频率作为适宜测量频率；强度随着电阻率的增加大体呈对数增长关系。
위료탐구중금속연대수니토강도적영향，통과전조솔화무측한항압강도시험，연구료연리자대수니토강도화전조솔특성적영향규률，병차대기화학미관궤리진행료간요분석。결과표명：재각개령기하，수니토적강도화전조솔도수착연리자함량적증가선강저후승고재강저，무측한항압강도화전조솔도출현료봉치화곡치；재불동연리자함량하，수니토적강도화전조솔도수착령기적증가이증장；전류빈솔대함연수니토적전조솔유착명현적영향규률，가장50 kHz지1 MHz범위내적전류빈솔작위괄의측량빈솔；강도수착전조솔적증가대체정대수증장관계。
In order to explore the effects of lead ions on the strength of cemented soil, experiments onelectrical resistivity and unconfined compressive strength were conducted,and the chemical mech-anism was analyzed briefly. The results show that the strength and electrical resistivity of cemented soil decreasesat first, then increases, anddecreasesagain finallywith the increase of lead ions at dif-ferent age. The strength and electrical resistivity of cemented soil increase with the age fordifferent lead ion content. The electrical resistivity is influenced significantly by the current frequency, and the current frequency that rangesfrom 50 kHz to 1 MHz isrecommended. The strength logarithmically increaseswith the increaseof resistivity.