PDF全文阅读

张会丽¹  ,  霍   光²

( 1 .  石家庄市鹿泉区建筑业服务中心 ，石家庄 050200 ;

2.  河北建研科技有限公司 ，石家庄 050227)

摘   要： 固化土具有良好的抗压、抗冻 、隔水及耐干湿循环性能 ，广泛应用于水利、交通 、港口等基础设 施的建设领域。为改善其抗压性能 ，选用河北省常见砂土、粉土 、黏土作为研究对象，通过不同配合比抗压性 能试验研究 ，分析了水泥 、萘磺酸甲醛缩合物、无水硫酸钠、二氧化硅 、粉煤灰 、氯化钠对材料抗压强度的影响 ，进一步建立改性流态固化粉土抗压强度与组分配合比的函数关系。研究表明：加入萘磺酸甲醛缩合物 、无 水硫酸钠可提高固化粉体抗压强度 ；增加粉煤灰 、二氧化硅掺量时 ， 固化粉体抗压强度先增大后保持不变 ，而 氯化钠掺量增加可导致固化粉体抗压强度先增大后减小。研究结果可为固化土应用提供参考。

关键词： 固化土 ；粉土 ；抗压性能 ；萘磺酸甲醛缩合物 ；无水硫酸钠

中图分类号：TU44           

文献标志码：A            

文章编号： 1005- 8249   (2025)  01- 0089- 06 

       DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .01 .017

 

ZHANG Huili ¹  ,  HUO Guang²

(1 . Shijiazhuang Luquan District Construction Industry Service Center. ，Shijiazhuang 050200 ,  China;

2. Hebei Jianyan Technology Co. ，Ltd. ，Shijiazhuang 050227 ,  China)

Abstract: Stabilized soil has good compressive, frost resistant, water-resistant, and dry wet cycle resistance properties, and is widely used in the construction of infrastructure such as water conservancy, transportation, and ports. In order to improve its compressive performance, common sand, silt, and clay in Hebei Province were selected as research objects. Through different mix ratios of compressive performance tests, the effects of cement, naphthalene sulfonic acid formaldehyde condensate, anhydrous sodium sulfate, silica, fly ash, and sodium chloride on the compressive strength of the materials were analyzed, and a functional relationship between the compressive strength of modified fluidized bed solidified loess and the composition ratio was further established. Research has shown that the addition of naphthalene sulfonic acid formaldehyde condensate and anhydrous sodium sulfate can improve the compressive strength of cured powders; When increasing the dosage of fly ash and silica, the compressive strength of the solidified powder first increases and then remains unchanged, while increasing the dosage of sodium chloride can lead to an increase and then a decrease in the compressive strength of the solidified powder. The research results can provide reference for the application of solidified soil.

Key words: solidified soil; silt; compressive performance; naphthalene sulfonic acid formaldehyde condensate; anhydrous sodium sulfate

作者简介： 张会丽  (1974—) ,  女 ，本科，高级工程师，研究方向：建筑检测与质量监督。

通信作者：霍   光  (1991 —) ,   男 ，硕士，工程师，研究方向：绿色建筑建材 、结构优化。

收稿日期：2024 - 12 - 13