摘要
为了解决赤泥磷石膏大量堆存所导致的一系列社会问题,实现对赤泥磷石膏改良粉土的大规模资源化利用,研究了不同赤泥磷石膏总掺量与不同赤泥磷石膏比例对赤泥磷石膏改良粉土的抗压强度和变形模量的影响,并研究了赤泥磷石膏改良粉土的无侧限抗压强度与变形模量之间的关系。结果表明:赤泥磷石膏的无侧限抗压强度与变形模量随着赤泥磷石膏掺量的增多而逐渐增大,在赤泥磷石膏总掺量保持为60%时,赤泥磷石膏的比例对其性能影响较大,其中以赤泥∶磷石膏为2∶1时的强度表现最为优异,推荐作为最优掺量。
To address the series of social issues caused by the large-scale stockpiling of red mud and phosphogypsum,and to achieve large-scale resource utilization of red mud and phosphogypsum improved silt,the effects of different total dosages of red mud and phosphogypsum and different proportions of red mud and phosphogypsum on the compressive strength and deformation modulus of red mud and phosphogypsum improved silt were studied.Additionally,the relationship between the unconfined compressive strength and deformation modulus of red mud and phosphogypsum improved silt was investigated.The results show that the unconfined compressive strength and deformation modulus of red mud and phosphogypsum improved silt gradually increase with the increase of the dosage of red mud and phosphogypsum.When the total dosage of red mud and phosphogypsum is maintained at 60%,the proportion of red mud and phosphogypsum has a significant iMPact on its performance.Among them,the strength performance is the best when the ratio of red mud to phosphogypsum is 2:1,which is recommended as the optimal dosage.
作者
陈伟明
CHEN Weiming(China Railway 12th Bureau Group Co.,Ltd.,Guangzhou 510000,China)
出处
《粉煤灰综合利用》
2025年第5期43-48,共6页
Fly Ash Comprehensive Utilization
关键词
强度特性
无侧限抗压强度试验
改良粉土
赤泥
磷石膏
strength characteristics
unconfined compressive strength test
improved silt
red mud
phosphogypsum
