“固化赤泥-人工膜”复合防渗材料研究  

STUDY ON CONSOLIDATED RED MUD-ARTIFICIAL FILM IMPERMEABLE COMPOSITE MATERIAL

作　　者：陈南[1] 杭鹏[2] 常向阳[1] 李冬梅[1] 李锦文[1] 楼益明[1] 

机构地区：[1]广州大学环境科学与工程学院,广州510006 [2]中国有色金属工业总公司西安勘察设计研究院,西安640001

出　　处：《环境工程》2012年第1期83-86,90,共5页Environmental Engineering

基　　金：国家自然科学基金(41073003);粤港关键领域重点突破项目招标项目(2009A03902004)

摘　　要：赤泥本身具有良好的防渗性能,加入石灰作为激发剂,更可提高其防渗性。根据《土工合成材料测试手册》和GB/T 50123—1999《土工试验方法标准》进行渗透试验,结果表明:室内试验在赤泥中加入8%石灰,并夹一层人工防渗膜形成的复合防渗材料,在固化28 d后,其渗透系数可达(7.3～7.4)×10-9 cm/s。在工业试验中,夹入不同厚度和质地的人工防渗膜的石灰(8%)固化赤泥,渗透系数可达到6.32×10-9～1.89×10-7 cm/s。研究成果在中原某铝厂赤泥堆场防渗工程中得到了应用。While red mud functions well in impermeability, it can do better when mixed with lime. The permeability tests were implemented according to GB/T 50123--1999. The findings indicated that in the laboratory, the permeability coefficient of consolidated red mud-artificial film was （7.3 -7.4） × 10^-9 cm/s when 8% lime was mixed to consolidate the red mud that was cured for 28 d. In pilot tests, the permeability coefficient of consolidated red mud（8% lime） sandwiched with artificial film with different thickness was 6.32 × 10 ^-9 - 1.89 × 10 ^-7 cm/s. Research results were applied to the engineering case of a aluminium factory in the midland of China.

关 键 词：赤泥 人工防渗材料 渗透系数 固化 

分 类 号：X756[环境科学与工程—环境工程]