Journal
POLYMERS
Volume 13, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/polym13060875
Keywords
low-calcium fly ash geopolymer concrete; tensile strength; reinforcement-concrete bond strength; regression analysis; cracking behaviors; design anchorage length
Categories
Funding
- Science and Technology Department of Sichuan province [2020YJ0319]
Ask authors/readers for more resources
This paper developed practical prediction models for splitting tensile strength and reinforcement-concrete bond strength of FAGC, based on regression analysis of experimental data and literature. The models can be used for design equations and estimating anchorage length accurately.
There have been a few attempts to develop prediction models of splitting tensile strength and reinforcement-concrete bond strength of FAGC (low-calcium fly ash geopolymer concrete), however, no model can be used as a design equation. Therefore, this paper aimed to provide practical prediction models. Using 115 test results for splitting tensile strength and 147 test results for bond strength from experiments and previous literature, considering the effect of size and shape on strength and structural factors on bond strength, this paper developed and verified updated prediction models and the 90% prediction intervals by regression analysis. The models can be used as design equations and applied for estimating the cracking behaviors and calculating the design anchorage length of reinforced FAGC beams. The strength models of PCC (Portland cement concrete) overestimate the splitting tensile strength and reinforcement-concrete bond strength of FAGC, so PCC's models are not recommended as the design equations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available