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为了说明用玻璃纤维或钢纤维作为混凝土补强材料的混凝土构件的特性,各研究所正在进行这方面的研究试验。这里介绍的是利用玻璃纤维作补强材料的混凝土构件的试验结果。这里使用的混凝土补强材料是具有拉力非常高的一种玻璃纤维,其拉伸强度达到35～70kgf/mm~2。因此,将这种玻璃纤维用于受侧向张拉的混凝土构件,要比普通构件断面小,而且价格也便宜。但是,由于这种玻璃纤维的弹性系数小,重量大,于是就引起混凝土局部产生裂纹,以及产生大的变形这类问题。通过多次破坏试验,对同构件的抗压强度、抗弯强度、
In order to illustrate the characteristics of concrete members made of glass fiber or steel fiber as a reinforcing material for concrete, research institutes are conducting research in this respect. Here is the test result of a concrete member using glass fiber as a reinforcing material. The concrete reinforcing material used here is a glass fiber having a very high tensile strength and a tensile strength of 35 to 70 kgf / mm 2. Therefore, the use of such fiberglass for concrete members that are laterally stretched is less than the cross-section of conventional components and is also inexpensive. However, since such a glass fiber has a small coefficient of elasticity and a heavy weight, it causes problems such as local occurrence of cracks in the concrete and large deformation. Through repeated destruction tests, the compressive strength, flexural strength,