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Experimental Investigation on Stress-Strain Curve of Phosphogypsum Under Uniaxial Compression
https://orcid.org/http://orcid.org/0000-0001-7112-0104
https://orcid.org/http://orcid.org/0000-0001-9291-1191
https://orcid.org/http://orcid.org/0000-0002-4006-1399
https://orcid.org/http://orcid.org/0000-0002-4549-8397
https://orcid.org/http://orcid.org/0000-0002-8485-8412
To study the stress-strain relations of phosphogypsum (PG), 36 samples with different mix proportions were tested under uniaxial compression. The failure mode, measured curve, elastic modulus and Poisson’s ratio were analyzed in detail. The results show that all samples showed similar failure modes, and all stress-strain curves can be divided into 3 stages. The strength of the sample increases with the reduction of the water-solid ratio, and the elastic modulus increases with the increase of the compressive strength. The mix proportion has little effect on the peak strain and Poisson’s ratio of the PG sample. Furthermore, a stress-strain model was developed based on the mathematical fitting method, comparisons between the test and calculated curves showed that the proposed model has a good accuracy.
Experimental Investigation on Stress-Strain Curve of Phosphogypsum Under Uniaxial Compression
https://orcid.org/http://orcid.org/0000-0001-7112-0104
https://orcid.org/http://orcid.org/0000-0001-9291-1191
https://orcid.org/http://orcid.org/0000-0002-4006-1399
https://orcid.org/http://orcid.org/0000-0002-4549-8397
https://orcid.org/http://orcid.org/0000-0002-8485-8412
To study the stress-strain relations of phosphogypsum (PG), 36 samples with different mix proportions were tested under uniaxial compression. The failure mode, measured curve, elastic modulus and Poisson’s ratio were analyzed in detail. The results show that all samples showed similar failure modes, and all stress-strain curves can be divided into 3 stages. The strength of the sample increases with the reduction of the water-solid ratio, and the elastic modulus increases with the increase of the compressive strength. The mix proportion has little effect on the peak strain and Poisson’s ratio of the PG sample. Furthermore, a stress-strain model was developed based on the mathematical fitting method, comparisons between the test and calculated curves showed that the proposed model has a good accuracy.
Experimental Investigation on Stress-Strain Curve of Phosphogypsum Under Uniaxial Compression
https://orcid.org/http://orcid.org/0000-0001-7112-0104
https://orcid.org/http://orcid.org/0000-0001-9291-1191
https://orcid.org/http://orcid.org/0000-0002-4006-1399
https://orcid.org/http://orcid.org/0000-0002-4549-8397
https://orcid.org/http://orcid.org/0000-0002-8485-8412
To study the stress-strain relations of phosphogypsum (PG), 36 samples with different mix proportions were tested under uniaxial compression. The failure mode, measured curve, elastic modulus and Poisson’s ratio were analyzed in detail. The results show that all samples showed similar failure modes, and all stress-strain curves can be divided into 3 stages. The strength of the sample increases with the reduction of the water-solid ratio, and the elastic modulus increases with the increase of the compressive strength. The mix proportion has little effect on the peak strain and Poisson’s ratio of the PG sample. Furthermore, a stress-strain model was developed based on the mathematical fitting method, comparisons between the test and calculated curves showed that the proposed model has a good accuracy.
Experimental Investigation on Stress-Strain Curve of Phosphogypsum Under Uniaxial Compression
Lecture Notes in Civil Engineering
Guo, Wei (editor) / Qian, Kai (editor) / Zhou, Li (author) / Hu, Song (author) / Yin, Chao (author) / Xu, Yifeng (author) / Zou, Qingyu (author)
International Conference on Green Building, Civil Engineering and Smart City ; 2022 ; Guilin, China
2022-09-08
10 pages
Article/Chapter (Book)
Electronic Resource
English
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