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艺术作品复原的最佳材料就是与原作品最接近的材料。当石灰底的壁画需要喷浆时，以石灰为主的喷涂材料成了显而易见的首选材料。由于喷浆是一个不可逆转的过程，因此喷浆的兼容性尤为重要。要使石灰浆凝固，就需要空气，尤其是二氧化碳CO2，然而，在需要喷浆的两个分层的窄小空间里，CO2往往不能在喷浆的过程中得以充分的供应，使喷浆达到满意的效果。为解决这一困难，液压喷浆法得以延伸应用，使喷浆与水共同凝固，并在喷浆中混合人合成的或自然的有机粘合剂。有人进行了一项研究，即在CO2浓度不足的情况下，使用何种添加剂能加速石灰底喷浆的凝固。在这项研究中，为了了解凝固过程中的动力学，人们用含碱环境、碳酸酯与水发生化学反应产生CO2，进行了多组鉴别、试验。同时，也作了关于增加喷浆混合物的流体性，以提高其可喷性的调查。这些喷浆混合物的实践应用在近期对佛罗伦萨布兰卡其教堂（Brancani）的马萨索和马萨林诺壁国（MasaccloandMasolino）的复原中得以实际应用。
The best material to restore a work of art is the closest material to the original work. When lime-based murals need shotcrete, the lime-based spray material became the obvious first choice. Because shotcrete is an irreversible process, shotcrete compatibility is of particular importance. In order to solidify the lime slurry, air, especially carbon dioxide (CO2), is needed. However, in two stratified and confined spaces where shotcrete is required, CO2 is often not adequately supplied during the shotcrete process, Satisfactory results. In order to solve this problem, the hydraulic spraying method is extended to co-coagulate shotcrete with water and to mix synthetic or natural organic binder in shotcrete. A study was conducted on the use of additives to accelerate the solidification of lime-based shotcrete in the absence of CO2. In this study, in order to understand the kinetics of solidification process, people use alkali-containing environment, carbonate and water chemical reaction of CO2, conducted a number of sets of identification and testing. At the same time, investigations have also been made on increasing the fluidity of the shotcrete mixture to improve its jettability. The practical application of these shotcrete mixtures has recently gained practical application in the restoration of Masassolo and Masolino in the Brancani, Florence.