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前言随着科学技术和现代工业的不断发展,对建筑材料各种性能的要求也日益增长。以水泥为基础的材料(如水泥砂浆与水泥混凝土)是工程上应用最广泛的一种建筑材料,它具有许多优点,但也存在着在拉应力或冲击荷载下发生脆性破坏的主要缺点。为此,许多科技人员通过各种途径来提高水泥为基础材料的韧性和抗拉强度。国外通常采用钢纤维、玻璃纤维和聚丙烯类纤维等增强材料,其中用弹模较高的钢纤维作为增强材料最有效,因此钢纤维混凝土是纤维混凝土中目前研究得最广泛的一种。
Preface With the continuous development of science and technology and modern industry, the requirements for various properties of building materials are also increasing. Cement-based materials, such as cement mortar and cement concrete, are the most widely used construction materials in construction and have many advantages, but there are also major disadvantages of brittle failure under tensile or impact loading. To this end, many scientific and technological personnel through various channels to improve the toughness and tensile strength of cement-based materials. Foreign countries often use steel fiber, glass fiber and polypropylene fiber and other reinforcing materials, of which the higher the modulus of steel fiber as the most effective reinforcement material, the fiber-reinforced concrete is currently the most widely studied in fiber-reinforced concrete.