摘要
通过超声波法测试出混凝土试件在早期波速值,由波速和弹性模量的关系确定混凝土弹性模量值.在万能材料试验机上进行抗拉弹性模量试验,由此取得的抗拉弹性模量值对由超声波法测出的混凝土弹性模量值进行修正,从而得到符合实际情况的混凝土早期抗拉弹性模量值。本文的方法将两种试验方法的优点相结合,可方便地找出混凝土早期抗拉弹性模量变化规律。
The ultrasonic is used to measure the wave velocity of early stage concrete. The elastic modulus is obtained by relation between wave velocity and elastic modulus. The tension elastic modulus is measured by material test machine. This modulus is used to modify the ones measured by ultrasonic. Then real tension elastic modulus of early stage concrete cab be obtained. The variable characteristics of tension elastic modulus are also obtained easily by using these two experimental methods together.
出处
《试验技术与试验机》
2007年第2期29-31,共3页
Test Technology and Testing Machine
关键词
超声波
混凝土
早期
弹性模量
试验
ultrasonic
concrete
early stage
elastic modulus
test
