Lin Deng-Fong, Lin Kuo-Liang, Luo Huan-Lin, Xu Jia-Qin
Department of Civil and Ecological Engineering, I-Shou University, Kaohsiung 84001, Taiwan.
Materials (Basel). 2016 Jul 7;9(7):546. doi: 10.3390/ma9070546.
In this study, properties of newly developed reclaimed tiles in a harmful environment were investigated. A portion of clay used to manufacture tiles was replaced with sewage sludge ash (SSA) and waste glass to produce the new reclaimed tiles. To investigate the effects of SSA and waste glass on the properties of the tiles, different specimens were blended and placed in acid-alkali solutions. The reclaimed tile specimens were manufactured by clay, 10% SSA, and five different mixes of waste glass replacement, namely, 0%, 10%, 20%, 40%, and 60%. These specimens were calcined at 1000 °C and subsequently underwent a series of tests, including TGA/DTA (thermogravimetric analysis/differential thermal analysis), SEM (scanning electron microscopy), XRD (X-ray diffraction), bending strength, weight loss, and porosity. Test results show that shortcomings associated with the introduction of the sludge ash were improved by the admixture of waste glass, especially in the aspects of shrinkage and bending strength. The study showed that the new reclaimed tiles performed relatively well in acid-alkali resistance tests but appeared to have better alkali resistance than acid resistance. It was also found that the optimal mix of such reclaimed tiles was 10% SSA, 10% waste glass, and 80% clay.
在本研究中，对新开发的再生砖在有害环境中的性能进行了研究。用于制造砖块的一部分粘土被污水污泥灰（SSA）和废玻璃取代，以生产新的再生砖。为了研究SSA和废玻璃对砖块性能的影响，将不同的试样进行混合，并置于酸碱溶液中。再生砖试样由粘土、10%的SSA和五种不同比例的废玻璃替代物混合制成，即0%、10%、20%、40%和60%。这些试样在1000℃下煅烧，随后进行了一系列测试，包括热重分析/差示热分析（TGA/DTA）、扫描电子显微镜（SEM）、X射线衍射（XRD）、抗弯强度、重量损失和孔隙率。测试结果表明，废玻璃的掺入改善了与污泥灰引入相关的缺点，特别是在收缩率和抗弯强度方面。研究表明，新型再生砖在耐酸碱测试中表现相对较好，但似乎具有比耐酸性更好的耐碱性。还发现，这种再生砖的最佳配比是10%的SSA、10%的废玻璃和80%的粘土。
