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沃留杰¹, 陈磊杰², 朴松浩², 夏亚宁³

            ( 1 .  宁波市建设工程安全质量管理服务总站 ，宁波 315899 ;  2.  宁波市轨道交通集团有限公司建设分公司，

          宁波 315101 ;  3 .  浙江科技大学 ，杭州 310023)

摘   要 ：我国沿海地区城市化建设过程中产生了大量的工程渣土 ，其堆积占地且污染环境 ，成为当地政府  亟需解决的难题。地聚物作为一种新型绿色胶凝材料 ，在渣土再生利用进行固化方面具备一定的潜能。以粉煤  灰与矿渣两种工业废渣以及碱激发溶液按照一定比例来制备地聚物 ，开展地聚物固化工程渣土的室内水 －力性  质试验研究。结果表明：在一定的养护龄期下 ，地聚物固化土无侧限抗压强度随着地聚物掺量的增加而提高； 当固化剂掺量相同时 ，地聚物固化土无侧限抗压强度随着龄期的增加而不断增长 ；当添加少量的石灰或水泥后， 改性地聚物（地聚物＋水泥或石灰） 固化渣土水稳性得到显著提升。研究可为地聚物在渣土固化工程中推广应  用提供技术支撑。

关键词：地聚物 ；粉煤灰 ；矿渣 ；工程渣土 ；水稳性试验 ；无侧限抗压强度

中图分类号：U414           文献标志码：A         

  

文章编号： 1005- 8249   (2025)  03- 0049- 05 

DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .03 .009

WO Liujie¹, CHEN Leijie², BU Songhao², XIA Yaning³

（1.Ningbo Construction Engineering Safety and Quality Management Service Terminal， Ningbo 315899, China；

2.Ningbo Railway Transportation Group Construction Branch, Ningbo 315101, China；

3.Zhejiang University of Science and Technology, Hangzhou 310023, China）

Abstract: In the process of urbanization construction in China's coastal areas, a large amount of engineering muck has been generated, which occupies land and pollutes the environment, becoming an urgent problem for local governments to solve. Geopolymer, as a new type of green cementitious material, has potential in the recycling and solidification of muck. A geopolymer was prepared by mixing fly ash and slag, two types of industrial waste, with an alkali-activated solution in a certain proportion, and indoor hydro-mechanical property tests were conducted on the geopolymer-solidified engineering muck. The results show that under a certain curing age, the unconfined compressive strength of the geopolymer-solidified soil increases with the increase of the geopolymer content; when the content of the solidifying agent is the same, the unconfined compressive strength of the geopolymer-solidified soil continuously grows with the increase of the curing age; when a small amount of lime or cement is added, the water stability of the modified geopolymer (geopolymer + cement or lime) solidified muck is significantly improved. The research can provide technical support for the promotion and application of geopolymer in muck solidification engineering.

Keywords: geopolymer; fly ash; slag; construction waste; water stability test; unconfined compressive strength.

作者简介：沃留杰  (1983—) ,  男 ，硕士 ，高级工程师 ，研究方向：房屋建筑及市政工程安全质量监督管理。

收稿日期：2024 - 04 - 21