摘要
为给实时高温状态下的工程材料与建筑结构安全奠定理论基础,本文以单轴压缩试验,研究分析了实时高温状态下的钢纤维混凝土力学特性变化态势。结果表明,相较于普通混凝土,钢纤维混凝土的抗压强度与残余强度相对较高,这主要是由于钢纤维混凝土中钢纤维的掺加,有效提高了水泥混凝土的强度与韧度;钢纤维掺加于水泥混凝土内,发挥了良好的裂缝阻碍效用,阻挡了微小裂缝的扩大,强化了混凝土强度与延展性。
In order to lay a theoretical foundation for the safety of engineering materials and building structures under real-time high temperatures, uniaxial compression tests were carried out to discuss the changing trend of mechanical properties of steel fiber reinforced concrete under such temperatures. The results show that both compressive and residual strength of steel fiber reinforced concrete are relatively higher than those of ordinary concrete. The fortified steel fiber not only significantly helps enhance the strength and toughness of cement concrete, but plays an important role in preventing cracks, blocking the expansion of micro cracks, and improving the strength and ductility of concrete.
作者
惠弘毅
杨梓钰
Hui Hongyi;Yang Ziyu(Shaanxi Railway Institute,Weinan 714000,China)
出处
《塑料助剂》
CAS
2022年第6期26-29,共4页
Plastics Additives
基金
课题:陕西省教育厅一般专项课题(自然科学类),课题名称:混凝土细观各相力学特性试验研究,课题编号:20JK0579
课题:陕西铁路工程职业技术学院院级科研课题,课题名称:钢纤维混凝土力学特性研究,课题编号:KY2021-37。
关键词
钢纤维混凝土
力学特性
单轴压缩试验
抗压强度
残余强度
steel fiber reinforced concrete
mechanical property
uniaxial compression test
compressive strength
residual strength
