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沃留杰¹, 陳磊杰², 樸松浩², 夏亞寧³

            ( 1 .  寧波市建設工程安全質量管理服務總站 ，寧波 315899 ;  2.  寧波市軌道交通集團有限公司建設分公司，

          寧波 315101 ;  3 .  浙江科技大學 ，杭州 310023)

摘   要 ：我國沿海地區城市化建設過程中產生了大量的工程渣土 ，其堆積占地且污染環境 ，成為當地政府  亟需解決的難題。地聚物作為一種新型綠色膠凝材料 ，在渣土再生利用進行固化方面具備一定的潛能。以粉煤  灰與礦渣兩種工業廢渣以及堿激發溶液按照一定比例來制備地聚物 ，開展地聚物固化工程渣土的室內水 －力性  質試驗研究。結果表明：在一定的養護齡期下 ，地聚物固化土無側限抗壓強度隨著地聚物摻量的增加而提高； 當固化劑摻量相同時 ，地聚物固化土無側限抗壓強度隨著齡期的增加而不斷增長 ；當添加少量的石灰或水泥后， 改性地聚物（地聚物＋水泥或石灰） 固化渣土水穩性得到顯著提升。研究可為地聚物在渣土固化工程中推廣應  用提供技術支撐。

關鍵詞：地聚物 ；粉煤灰 ；礦渣 ；工程渣土 ；水穩性試驗 ；無側限抗壓強度

中圖分類號：U414           文獻標志碼：A         

  

文章編號： 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.

作者簡介：沃留杰  (1983—) ,  男 ，碩士 ，高級工程師 ，研究方向：房屋建筑及市政工程安全質量監督管理。

收稿日期：2024 - 04 - 21