海港疏浚含盐淤泥烧结陶粒试验研究  

Experimental Research on Sintering Ceramsite of Dredged Saline Sediment from Seaport

作　　者：李明东[1,2] 夏霆[3] 刘洋洋[3] 张志峰 田安国[2] LI Mingdong XIA Ting LIU Yangyang ZHANG Zhifeng TIAN Anguo(Jiangsu Marine Resources Development Institute, Lianyungang 222005, Jiangsu, P. R. China School of Civil Engineering, Huaihai Institute of Technology, Lianyungang 222005, Jiangsu, P. R. China College of Environment, Nanjing University of Technology, Nanjing 2118t6, Jiangsu, P. R. China Lianyungang Urban and Rural Construction Bureau, Lianyungang 222000, Jiangsu, P. R. China)

机构地区：[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

出　　处：《重庆交通大学学报（自然科学版）》2016年第6期81-85,共5页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：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)

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Si O2,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。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.

关 键 词：港口工程 岩土工程 淤泥 氯化钠 陶粒 可溶性盐 

分 类 号：U652.6[交通运输工程—港口、海岸及近海工程] TU58[交通运输工程—船舶与海洋工程]