Zong Meirong, Ma Haozhe, Yan Xiancui, Zhu Pinghua, Wang Wenhao, Liu Hui, Dong Faqin, Hua Minqi
Department of Civil Engineering, Changzhou University, Changzhou 213164, China.
Key Laboratory of Solid Waste Treatment and Resource Utilization, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China.
Materials (Basel). 2025 Apr 9;18(8):1709. doi: 10.3390/ma18081709.
Cement-based self-leveling mortar (CSL) is a special building material that utilizes cement as the main cementitious component, combined with a variety of admixtures. Its self-leveling characteristics enable it to effectively level and fill uneven surfaces. Additionally, the innovative green CSL developed from industrial by-products can further enhance both environmental and economic benefits. This paper systematically reviews the use of admixtures and industrial by-products in the production of CSL. The main findings include the following: (i) compared to the international ISO standard, China's standard JC/T 985 provides more detailed testing parameters regarding fluidity, mechanical properties, and shrinkage; (ii) the effect of additives on CSL is affected by its molecular weight and structure, and high molecular weight improving the workability of the additives; (iii) industrial by-products have been effectively incorporated into CSL, leading to a reduction in reduced greenhouse gas emissions and a decreased environmental impact; (iv) macro and microanalysis results of different green CSLs show that industrial by-product gypsum has the greatest potential for application in CSL. Based on these findings, this paper offers valuable reference data for the use of admixtures and industrial by-products in CSL. Furthermore, it contributes innovatively to the sustainable development of infrastructure construction.
水泥基自流平砂浆（CSL）是一种特殊的建筑材料，它以水泥作为主要胶凝成分，并与多种外加剂相结合。其自流平特性使其能够有效地平整和填充不平整的表面。此外，由工业副产品开发的创新型绿色CSL可以进一步提高环境和经济效益。本文系统地综述了外加剂和工业副产品在CSL生产中的应用。主要研究结果如下：（i）与国际ISO标准相比，中国标准JC/T 985在流动性、力学性能和收缩率方面提供了更详细的测试参数；（ii）添加剂对CSL的影响受其分子量和结构的影响，高分子量可提高添加剂的工作性能；（iii）工业副产品已有效地掺入CSL中，导致温室气体排放量减少和环境影响降低；（iv）不同绿色CSL的宏观和微观分析结果表明，工业副产品石膏在CSL中的应用潜力最大。基于这些发现，本文为CSL中外加剂和工业副产品的使用提供了有价值的参考数据。此外，它还为基础设施建设的可持续发展做出了创新性贡献。
