本文按我国“普通混凝土基本性能试验方法”,采用太原线材厂加工的钢纤维,并以普通水泥和碎石或重矿渣混凝土为基体,在基体配合比不变的情况下,着重研究了钢纤维的含量及尺寸对基本力学性能的影响,探讨了破坏机理,验证了钢纤维在脆性基体中的增强规律。同时,还就国外的某些论点提出了不同的看法。 According to the “Basic Test Method for Ordinary Concrete Performance” in China, the steel fibers processed by the Taiyuan Wire Plant are used, and the ordinary cement and gravel or heavy slag concrete are used as the matrix. Under the circumstance that the matrix mix ratio is constant, the steel fibers are studied emphatically. The influence of the content and size on the basic mechanical properties, the destruction mechanism was explored, and the reinforcement rule of the steel fiber in the brittle matrix was verified. At the same time, it also put forward different views on some of the foreign arguments.