High efficiency, environmental protection and sustainability have become the main theme of the development of the protection engineering, requiring that the components not only meet the basic functions, but also have chemical properties such as acid and alkali corrosion resistance and aging resistance. Polyisocyanate-oxazodone (POZD) polymer has the above characteristics, it also has the advantages of strong toughness, high strength and high elongation. The concrete slab sprayed with POZD material has excellent anti-blast performance. In order to explore the damage characteristics of POZD sprayed concrete slabs under the action of contact explosion thoroughly, the contact explosion test of POZD concrete slabs with different charges were carried out. On the basis of experimental verification, numerical simulation were used to study the influence of the thickness of the POZD on the blast resistance of the concrete slab. According to the test and numerical simulation results that as the thickness of the coating increases, the anti-blast performance of the concrete slab gradually increases, and the TNT equivalent required for critical failure is larger. Based on the above analysis, empirical expressions on normalized crater diameter, the normalized spall diameter and normalized spall diameter are obtained.

高效、环保、可持续已成为防护工程发展的主旋律，要求构件不仅满足基本功能，而且具有耐酸碱腐蚀、耐老化等化学性能。聚异氰酸酯-恶唑酮（POZD）聚合物具有以上特点，还具有韧性强、强度高、伸长率高等优点。喷涂POZD材料的混凝土板具有优异的抗爆性能。为深入探究POZD喷射混凝土板在接触爆炸作用下的破坏特性，开展了不同装药量的POZD混凝土板接触爆炸试验。在实验验证的基础上，采用数值模拟方法研究了POZD厚度对混凝土板抗爆性的影响。根据试验和数值模拟结果表明，随着涂层厚度的增加，混凝土板的抗爆性能逐渐提高，临界破坏所需的TNT当量较大。在上述分析的基础上，得到了归一化弹坑直径、归一化剥落直径和归一化剥落直径的经验表达式。