Experimental Study of Durability of Reactive Powder Concretes
Experimental Study of Durability of Reactive Powder Concretes
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DOI：
10.1061/(asce)0899-1561(1996)8:1(1
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发表时间：
1996-02
影响因子：
3.2
通讯作者：
N. Roux;C. Andrade;M. Sanjuán
中科院分区：
文献类型：
--
作者：
N. Roux;C. Andrade;M. Sanjuán
活性粉末混凝土（RPC）的耐久性是通过测量孔隙率、透气性、吸水率、扩散和氯离子迁移、加速碳化、抗钢筋腐蚀、电阻率和抗机械磨损来定义的。对比了低水泥掺量30 MPa级混凝土和80 MPa级高性能混凝土的性能特点。RPC具有优异的颗粒致密性，其低含水量有助于降低孔隙率。与参考混凝土相比，这导致了对侵蚀剂渗透的优异抵抗，并且用RPC建造的结构预计将比用普通混凝土建造的结构寿命更长。
The durability of reactive powder concretes (RPC) has been defined by measuring porosity, air permeability, water absorption, diffusion, and migration of chloride ions, accelerated carbonation, resistance to reinforcement corrosion, resistivity, and resistance to mechanical abrasion. Results were compared with the characteristics of a grade 30 MPa concrete with a low cement content and a grade 80 MPa very high performance concrete. The RPC displays excellent granular compactness, and its low water content helps reduce porosity. This results in an excellent resistance to the penetration of aggressive agents with respect to the reference concretes, and structures built with RPC are expected to significantly outlast those built with ordinary concrete.