Utilization of the sludge derived from dyestuff-making wastewater coagulation for unfired bricks
✍ Scribed by Zhenhong Liu; Quanyuan Chen; Xuebao Xie; Gang Xue; Feifei Du; Qiuyan Ning; Lu Huang
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 550 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0950-0618
No coin nor oath required. For personal study only.
✦ Synopsis
The object of this work was to explore the feasibility of using the sludge derived from dyestuff-making wastewater coagulation for the preparation of unfired bricks with four typical cements including Portland cement, ground silicate cement clinker, alumina cement and slag cement. The interaction between the sludge and cement were studied based on X-ray diffraction, thermal analyses, compressive strength measurements, freeze-thaw tests and leaching tests. The experimental results showed that the cement solidified sludge was capable of reaching all performance criteria for unfired bricks at a cement/dry sludge/water ratio of 1:0.5-0.8:0.5-0.8. The compressive strengths of alumina cement solidified sludge overpass 40 MPa, higher than those of other cement solidified sludges. It is expected that the unfired bricks of the sludge and alumina cement can be used for the pave of pedestrian road.