Reactive Powder Concrete (RPC) is a new type of very high strength concrete made from powders. With a very simple and inexpensive thermal treatment, a 200-MPa compressive strength can be achieved when using steel microfibers. Moreover, the use of steel microfibers makes RPC a pseudo ductile material but at a high unit cost. Better ductility can be obtained in a simpler and much less expensive way by confining a non fiber RPC in thin tubes, In this case, non fiber confined RPC can reach a 350-MPa compressive strength. The results of experimental tests regarding the behavior of confined plain or confined fiber reinforced RPC are summarized and discussed in this paper.
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