中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2016, Vol. 35 ›› Issue (6): 81-85.DOI: 10.3969/j.issn.16740696.2016.06.17

• 港口航道·水利水电·资源环境 • 上一篇    下一篇

海港疏浚含盐淤泥烧结陶粒试验研究

李明东1,2,夏霆3,刘洋洋3,张志峰4,田安国2   

  1. (1. 江苏省海洋资源开发研究院,江苏 连云港 222005;2. 淮海工学院 土木工程学院,江苏 连云港222005;3. 南京工业大学 环境学院,江苏 南京 211816;4. 连云港市城乡建设局,江苏 连云港 222000)
  • 收稿日期:2015-10-16 修回日期:2016-02-16 出版日期:2016-12-25 发布日期:2016-12-29
  • 作者简介:李明东(1981—),男,山东平邑人,副教授,博士,主要从事岩土工程和固废资源化方面的研究。Email:ytlimd@163.com。
  • 基金资助:
    住房和城乡建设部科学技术计划项目(2015K6001);国家水体污染控制与治理重大科技专项项目(2012ZX0750100103);江苏省海洋资源开发研究院开放课题(JSIMR201501)

Experimental Research on Sintering Ceramsite of Dredged Saline Sediment from Seaport

LI Mingdong1, 2, XIA Ting3, LIU Yangyang3, ZHANG Zhifeng4, TIAN Anguo2   

  1. (1. Jiangsu Marine Resources Development Institute, Lianyungang 222005, Jiangsu, P.R.China; 2. School of Civil Engineering, Huaihai Institute of Technology, Lianyungang 222005, Jiangsu, P.R.China; 3. College of Environment, Nanjing University of Technology, Nanjing 211816, Jiangsu, P.R.China; 4. Lianyungang Urban and Rural Construction Bureau, Lianyungang 222000, Jiangsu, P.R.China)
  • Received:2015-10-16 Revised:2016-02-16 Online:2016-12-25 Published:2016-12-29

摘要: 选用连云港港疏浚泥为代表,测试了其基本性能和化学成分,进行了直接烧胀陶粒和复掺污泥烧胀陶粒试验,测试了陶粒的基本性能和可溶性盐含量。研究表明:连云港港疏浚淤泥主要化学成分为SiO2, Al2O3, Fe2O3,颗粒细小,液塑限高、塑性指数大,适于烧胀陶粒。连云港港疏浚淤泥复掺35%污泥能够烧制成密度低于600 kg/m3、筒压强度达到3.8 MPa的陶粒,最佳烧胀温度为1 020 ℃,烧胀陶粒可溶性盐含量极低,不存在吸湿、泛霜、腐蚀性和重金属污染问题。

关键词: 港口工程, 岩土工程, 淤泥, 氯化钠, 陶粒, 可溶性盐

Abstract: Dredged sediment from Lianyungang port was selected as an example, and its basic performances and chemical composition were tested. Experiments were carried out to test the expansion and compound sludge of sintered ceramic, and the basic properties and soluble salt content of the ceramic were tested. The results show that: the main chemical compositions of Lianyungang dredged sediment are SiO2, Al2O3 and Fe2O3, and its physical compositions are tiny particles with high liquid limit, plastic limit and plasticity index, which are suitable for sintering ceramsite. Ceramsites, whose density is less than 600 kg/m3 and cylinder compressive strength reaches 3.8 MPa, are successfully sintered from the mixture of Lianyungang dredged sediment and 35% sludge. Moreover, the best sinterswelling temperature is 1 020 ℃. Soluble salt content of the sintered ceramsite is extremely low, which means that there is no problem of moisture absorption, scum, corrosion or heavy metal pollution for the produced ceramsite.

Key words: port engineering, geotechnical engineering, sediment, sodium chloride, ceramsite, soluble salt

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