RPC混凝土在铁路预应力T形梁中的应用试验

我国在迁曹铁路滦柏干渠大桥工程中，首次采用活性粉末混凝土（Reactive Powder Concrete，RPC）制作多孔预应力简支T形梁进行力学性能测试和行车监测，其中1孔（2片）进行了力学性能测试，5孔（10片）进行了行车监测，取得了良好的效果。通过RPC混凝土桥梁的制作和试验，总结了部分制作经验，通过力学性能测度，证明了RPC混凝土在铁路桥梁应用中的可行性和良好前景。

Application Test of RPC Concrete in Railway Prestressed T-beam

In Luanbo bridge project of Qiancao railway, muhi-pored prestressed simple T-beam made of reactive powder concrete was used for the first time as a method to test the mechanical properties and monitor the trainlrunning, in which one pore (two pieces) is for mechanical property test, and five pores (ten pieces) for train-running monitoring The meth- od achieved good effects. In this paper, production experience was got by test and making of RPC concrete beam, and the feasibilities and prospects of the appplication of RPC concrete in railway ridge were proved by mechanical property teat.