Microbially induced calcium carbonate precipitation (MICP) and enzyme induced calcium carbonate precipitation (EICP) are the two most widely known bio-cementation techniques, particularly the former. EICP offers several benefits over MICP such as the smaller size of the urease enzyme making it applicable to a wider range of soils and simpler application processes. This review critically examines existing research on the EICP technique and provides an original meta-analysis of the available data. It is understood that factors such as the source and activity of the urease enzyme, the concentration of the chemical constituents (urea, calcium chloride and urease enzyme), the treatment approach used and the morphology of the precipitated calcium carbonate (CaCO₃) may all affect the performance of the EICP treated material. Consequently, various enhancing additives including magnesium chloride (MgCl₂), magnesium sulfate (MgSO₄), zeolite, dried non-fat milk, xanthan gum, sisal fibre and cabbage juice have been utilised in recent studies to improve on the effectiveness of the EICP process. In this review, engineering parameters such as the unconfined compressive strength are correlated to the CaCO₃ content (C_C) and soil uniformity coefficient (Cu_s) for EICP treated soils using compiled data from previous literature. However, the strength of EICP-treated soil may also depend on the particular polymorph, contact location and distribution of precipitated CaCO₃ as well as the soil particle size and shape.

微生物诱导碳酸钙沉淀 (MICP) 和酶诱导碳酸钙沉淀 (EICP) 是两种最广为人知的生物胶结技术，尤其是前者。EICP 与 MICP 相比具有多项优势，例如尿素酶的尺寸更小，使其适用于更广泛的土壤和更简单的应用过程。这篇综述批判性地审查了关于 EICP 技术的现有研究，并提供了对可用数据的原始荟萃分析。据了解，尿素酶的来源和活性、化学成分（尿素、氯化钙和尿素酶）的浓度、采用的处理方法以及沉淀碳酸钙（CaCO ₃) 都可能影响经过 EICP 处理的材料的性能。因此，最近的研究中使用了各种增强添加剂，包括氯化镁 (MgCl ₂ )、硫酸镁 (MgSO ₄ )、沸石、脱脂奶粉、黄原胶、剑麻纤维和卷心菜汁，以提高 EICP 的有效性过程。在这篇综述中，无侧限抗压强度等工程参数与CaCO ₃含量（C _C）和土壤均匀系数（Cu _s) 对于 EICP 处理的土壤，使用以前文献中的汇编数据。然而，经 EICP 处理的土壤的强度也可能取决于特定的多晶型、接触位置和沉淀 CaCO _{3 的}分布以及土壤颗粒大小和形状。