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桥梁防撞墩是桥梁安全防护的重要部位,对混凝土的强度和抗冲刷能力要求非常高。本文采用铁钢石和铁钢砂作为骨料配制高强耐磨混凝土,而这与常用的粗细骨料具有很大的差别。最后通过试验调整砂率和减水剂的种类、掺量等,获得工作性和强度满足施工要求的特种混凝土,并总结得到铁钢砂混凝土配合比设计的各种影响因素及注意事项,可作为类似工程的参考。
Bridge crash pier is an important part of the bridge safety protection, the strength of the concrete and anti-scour ability requirements are very high. In this paper, the use of iron and steel and iron sand as aggregate preparation of high-strength wear-resistant concrete, which with the commonly used coarse and coarse aggregate is very different. Finally, by adjusting the sand rate and the type and amount of superplasticizer, the special concrete with workability and strength to meet the construction requirements is obtained, and various influencing factors and considerations for the mix design of iron-steel sand concrete are summarized, which can be used as Similar projects reference.