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研究以脱硫灰为主要原料,加入一些改善材料制备性能的添加剂,采用半干压成型技术,制备了性能优良的陶瓷节能保温砖。利用TG-DTA、SEM、XRD和XRFA等测试技术,对各种固体废弃物及样品的组成、结构与性能进行了表征。其中样品H-5的结构和性能最好,它的吸水率Wa为24%,气孔率Pa为38%,体积密度D为1.66g/cm3,抗折强度为σb为10.36 MPa,抗压强度σc为47.459 MPa,热导率α为1.333×10-2 W·cm-1·K-1,抗冻融性为43.295 MPa。半干压成型制备的脱硫灰陶瓷节能保温砖样品的各项性能参数达到了《烧结普通砖GB 5101—2003》的各项指标参数。
Research to desulfurization ash as the main raw material, adding some additives to improve the performance of materials preparation, the use of semi-dry pressure molding technology, prepared ceramic energy-saving insulation board. The composition, structure and properties of various solid wastes and samples were characterized by TG-DTA, SEM, XRD and XRFA. The sample H-5 has the best structure and performance. The water absorption rate Wa is 24%, the porosity Pa is 38%, the bulk density D is 1.66g / cm3, the flexural strength σb is 10.36 MPa, the compressive strength σc Is 47.459 MPa, the thermal conductivity α is 1.333 × 10-2 W · cm-1 · K-1 and the antifreeze resistance is 43.295 MPa. The performance parameters of desulphurized ceramic energy-saving thermal insulation brick samples prepared by semi-dry pressing met the various parameters of “ordinary sintered brick GB 5101-2003”.