CAJ | 학술논문

研究了利用武汉北湖污泥制备节能砌块.在不同含量污泥(60%～100%)中加入粉煤灰和添加剂,检验了烧成样品的强度并与相关国家标准比较.结果显示:加入添加剂能提高烧成样品的强度,砌块的导热系数较低,同时粉煤灰和添加剂也可以宽化烧成温度范围和降低烧成温度.烧成样品的毒物浸出试验显示重金属的浸出容量低于国家标准.较佳制备节能砌块的工艺条件为:80%的污泥+10%的添加剂+10%的粉煤灰,在1000℃保温60 min.
연구료이용무한북호오니제비절능체괴.재불동함량오니(60%～100%)중가입분매회화첨가제,검험료소성양품적강도병여상관국가표준비교.결과현시:가입첨가제능제고소성양품적강도,체괴적도열계수교저,동시분매회화첨가제야가이관화소성온도범위화강저소성온도.소성양품적독물침출시험현시중금속적침출용량저우국가표준.교가제비절능체괴적공예조건위:80%적오니+10%적첨가제+10%적분매회,재1000℃보온60 min.
Energy saving blocks manufactured from lake sludge were investigated. Different contents of lake sludge (60%～100% by weight) were mixed with fly ash and additive. The blending strength, compressive strength of the fired samples were examined and compared with the Chinese National Standards (CNS). Results show that additive can result in the improvement of strength and blocks thermal conductivity is low. At the same time, fly ash and additive may also broaden the firing temperature range and reduce firing temperature. Toxic characteristic leaching procedure (TLCP) tests of blocks also show that the metal leaching level is low. The conditions for manufacturing good quality blocks are 80% sludge with 10% additive and 10% fly ash fired at 1000℃ for 60 min.