摘要
本文给出了三峡三斗坪大坝可行性方案中拟定的原级配砼的单向拉压性能:轴压强度、轴拉强度、极限拉伸值、抗拉弹性模数;并与经湿筛后砼的常规试验成果进行了比较,前者与后者各性能之间的比值依次为0.81,0.576 ,0.564,1.21。文章还对改进原级配砼的轴向拉伸试验方法提出了建议。
In this paper,the unidirectional compressive and tensile characteristics are given,including axial compressive strength,axial tensile strength,ultimate tensile strain and elastic tensile modulus of the fully-graded aggregate concrete set up in the feasibility study plan of the Shan Douping Dam of the Three Gorges project.The ratios of the characteristics to the corresponding characteristics of the rou- tine test results of wet screening concrete are 0.81,0.576,0.564 and 1.21,respectively.Some sug- gestions are put forward for improving the tensile test method of tully-graded aggregate concrete.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1992年第5期105-111,共7页
Journal of Hohai University(Natural Sciences)
关键词
混凝土
级配
单向拉压
三峡工程
fully-graded aggregate concrete
axial compressive strongth
axial tensile strength
ultimat tensile strain
elastic tensile modulus
