A novel chemically bonded ceramic (novel-CBC) is prepared based on the acid-base reaction of alkali metals in steel slag (SS) and oxalate anion (C₂O₄^2-) in potassium hydrogen oxalate (PO). The effects of SS/PO ratio and water-solid (W/S) ratio on the setting and compressive strength of novel-CBC were studied in this paper. Reaction products and microstructure of novel-CBC were characterized by X-ray diffractometer (XRD), field emission scanning electron microscope-energy dispersive spectroscopy (FESEM-EDS) and thermogravimetric analysis/differential scanning calorimetry (TG/DSC). An optimal formula is obtained at a SS/PO ratio of 3.0 and a W/S ratio of 0.20, which starts setting at 10 minutes and gives the strengths of 18.0, 25.0, 39.8 and 49.0 MPa at 1, 3, 7 and 28 days, respectively. The reactants from SS are mainly Ca-bearing phases, while only a small amount of RO phase is involved in reaction. The main reaction products of novel-CBC are calcium oxalate monohydrate (CaC₂O₄∙H₂O; whewellite) crystals and agglomerates consisting of K, Mg, Al, Si and O elements. The unreacted Ca-bearing phase particle and RO phase residue are embedded in a mixture of abundant CaC₂O₄∙H₂O crystals with smooth surfaces and a size of 0.5–1.0 μm with large amounts of the nanoscale agglomerates.

基于钢渣（SS）中碱金属和草酸根阴离子（C ₂ O ₄ ^2-）的酸碱反应，制备了一种新型化学键合陶瓷（novel-CBC）。）在草酸氢钾（PO）中。研究了SS / PO比和水固比对新型CBC的凝结和抗压强度的影响。通过X射线衍射仪（XRD），场发射扫描电子显微镜-能量色散光谱法（FESEM-EDS）和热重分析/差示扫描量热法（TG / DSC）对新型CBC的反应产物和微观结构进行了表征。在SS / PO比为3.0且W / S比为0.20的情况下获得了最佳公式，该公式从10分钟开始凝固，并在1、3、7和28天给出18.0、25.0、39.8和49.0 MPa的强度， 分别。来自SS的反应物主要是含Ca相，而反应中仅涉及少量RO相。新型CBC的主要反应产物是一水草酸钙（CaC₂ O ₄ ∙H ₂ O; 由K，Mg，Al，Si和O元素组成的晶体和附聚物。未反应的含钙相颗粒和RO相残留物被嵌入大量CaC ₂ O ₄ ∙H ₂ O晶体的混合物中，这些晶体具有光滑的表面和大小为0.5–1.0μm的纳米级团聚体。