玻璃纤维混凝土弹性模量的试验研究

Experimental study on the elasticity modulus of glass fiber reinforced concrete

试验对玻璃纤维混凝土的弹性模量展开研究,着重分析了不同纤维含量和养护龄期对混凝土弹性模量的影响。结果表明:玻璃纤维掺量在2%以内时可以提高混凝土的强度,增幅最大为11.3%;混凝土的弹性模量随玻璃纤维掺量的增加呈现不断降低的趋势,且掺量为2%时,下降速度最快,降低幅度为16.6%;玻璃纤维混凝土与普通混凝土相比,在同样的养护时间下弹性模量均低于后者,且掺量2%时相差最大,为13.1%,研究为玻璃纤维混凝土的推广应用做贡献。

The elastic modulus of glass fiber reinforced concrete was studied in the research.The influence of different fiber content and curing age on elastic modulus of concrete was analysed detailed.The results showed that glass fiber can improve the strength of the con- crete within 2% of the glass fiber content, the maximum amplitude of increase was 11.3%.The elastic modulus of concrete showed the ten- dency of decrease with the increase of the glass fiber content, the fastest decline appeared when the dosage was 2%, the amplitude of de- crease was 16.6%.The elastic modulus of glass fiber reinforced concrete were all lower than normal concrete with same curing age,and the maximum difference value was 13.1% when the dosage was 2%.The research has made contributions to popularization and application of glass fiber reinforced concrete.