Size Effect of Basic Mechanical Properties of Chopped Basalt Fiber Reinforced Concrete(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2015年05期
- Page:
- 96-103
- Research Field:
- Publishing date:
Info
- Title:
- Size Effect of Basic Mechanical Properties of Chopped Basalt Fiber Reinforced Concrete
- Author(s):
- WANG Jun; REN Jing-hao; GUO Da-peng
- School of Civil Engineering, Northeast Forestry University
- Keywords:
- basalt fiber; reinforced concrete; mechanical property; size effect
- PACS:
- -
- DOI:
- -
- Abstract:
- In order to study the influence of size effect on the basic mechanical properties of chopped basalt fiber reinforced concrete (BFRC), whose length was 15 mm or 25 mm, fiber volume content was 0.1% or 0.2%, concrete strength grade was C30 or C40. The cubic compressive strength, axial compressive strength, splitting tensile strength and flexural strength of 330 BFRC specimens were tested respectively and the experimental data were processed, the size effect law was reflected by the scale effect. The study results show that concrete strength grade, fiber length and fiber volume content have a little impact on the size conversion coefficient of cubic compressive strength. With the increase of concrete strength grade, fiber length and fiber volume content, the size effect of axial compressive strength shows a great improvement. Concrete strength grade has little effect on the size effect of splitting tensile strength, but the size effect shows an upward trend with fiber length decreases and fiber volume content increases. The size effect of flexural strength is little influenced by the concrete strength grade and fiber length, but the size conversion coefficient decreases firstly and then increases with the increase of fiber volume content.
Last Update: 2015-09-29