改良云南红粘土强度特性研究

摘要：为了研究纤维、纤维水泥对云南红粘土强度的影响，对改良后的红粘土进行了直剪试验和无侧限抗压试验。试验结果表明，往红粘土掺入纤维、纤维水泥后，其强度有了显著的改善。随着纤维含量增加，改良红粘土的抗剪强度先增加后减小，掺入量0.05%~0.15%时有明显改善；无侧限抗压强度随着纤维掺入量的增加而增强。在水泥掺入量一定时，改良红粘土的无侧限抗压强度随着纤维掺入量和龄期的增加而增加。相对于纤维改良红粘土而言，纤维水泥对云南红粘土无侧限抗压强度改善更为明显。

Improved strength characteristics of Yunnan Red Clay

Abstract: In order to study the fiber, fiber cement on the strength of Yunnan red clay, red clay of the improved direct shear tests carried out and the unconfined compression test. The results showed that, to the red clay mixed with fiber, fiber cement, its strength has improved significantly. With the increase of fiber content, improved the shear strength of red clay first increase and then decrease, the incorporation of 0.05% ~ 0.15%, a significant improvement; unconfined compressive strength with the increase of fiber incorporation increased. A certain amount of time in the cement, red clay improved the unconfined compressive strength with fiber incorporation and the increase of age. Improved relative to the fiber in terms of red clay, fiber cement Yunnan unconfined compressive strength of red clay to improve even more apparent.