Dicalcium silicate (C₂S) is known to incorporate potentially hazardous metals (Cr and V) in a belite-rich cementitious system. The effect of the electrovalence nature of V and Cr on C₂S polymorphs’ (α´, β, γ) stability under oxidizing and reducing conditions as well as their reactivity are systematically investigated via analyzing oxidation states, phase composition, bonding system, and microstructure as well as oxide composition quantitively. It is shown that C₂S can incorporate Cr (VI) and V(V) consequently leading to stabilization of α´, β-C₂S. Instead, Cr (II, III) and V < (V) tend not to substitute in C₂S. Despite reactive polymorphs (α´, β-C₂S) stability due to Cr (VI) and V(V) incorporation, the early age (48–72 h) C₂S reactivity is drastically reduced due to Cr (VI) and V (V) incorporation. Moreover, one batch leaching test revealed that the V (V) leaching is inversely proportional to aqueous Ca²⁺ ion at pH > 12 while Cr leaching is sensitive to its oxidation state, and dissolution of C₂S. Even though C₂S can incorporate Cr (VI) and V (V) ions, the final leaching is governed by the immobilization potential of C-S-H gel, pH as well as types of calcium chromate and vanadate complexes.

众所周知，硅酸二钙 (C ₂ S) 会在富含贝利特的胶凝体系中掺入潜在的有害金属（Cr 和 V）。_{通过分析氧化}态、相组成、键合系统和微观结构以及氧化物成分的数量。结果表明，C ₂ S 可以结合 Cr (VI) 和 V(V)，从而导致 α´、β-C ₂ S 的稳定化。相反，Cr (II, III) 和 V < (V) 往往不会取代在 C ₂ S 中。尽管存在反应性多晶型物（α´、β-C ₂S) 由于 Cr (VI) 和 V(V) 掺入的稳定性，早期 (48–72 h) C ₂ S 反应性由于 Cr (VI) 和 V (V) 掺入而急剧降低。^{此外，一批浸出试验表明，在 pH > 12 时，V (V) 浸出与含水 Ca 2+}离子成反比，而 Cr 浸出对其氧化态和 C 2 S 的溶解敏感_。即使 C ₂ S 可以结合 Cr (VI) 和 V (V) 离子，最终浸出取决于 CSH 凝胶的固定电位、pH 以及铬酸钙和钒酸钙络合物的类型。