Experimental and Statistical Study on Mechanical Characteristics of Geopolymer Concrete
This paper studies the statistical correlation in mechanical characteristics of class F fly ash based geopolymer concrete (CFGPC). Experimentally measured values of the compressive strength, elastic modulus and indirect tensile strength of CFGPC specimens made from class F fly ash (CFA) were present...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-04-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/13/7/1651 |
| _version_ | 1797571567895445504 |
|---|---|
| author | Yifei Cui Kaikai Gao Peng Zhang |
| author_facet | Yifei Cui Kaikai Gao Peng Zhang |
| author_sort | Yifei Cui |
| collection | DOAJ |
| description | This paper studies the statistical correlation in mechanical characteristics of class F fly ash based geopolymer concrete (CFGPC). Experimentally measured values of the compressive strength, elastic modulus and indirect tensile strength of CFGPC specimens made from class F fly ash (CFA) were presented and analyzed. The results were compared with those of corresponding ordinary Portland cement concrete (OPCC) using statistical hypothesis tests. Results illustrated that when possessing similar compressive and tensile strength, the elastic modulus for CFGPC is significantly lower than that of OPCC. The corresponding expressions recommended by standards for the case of OPCC is proved to be inaccurate when applied in the case of CFGPC. Statistical regression was used to identify tendencies and correlations within the mechanical characteristics of CFGPC, as well as the empirical equations for predicting tensile strength and elastic modulus of CFGPC from its compressive strength values. In conclusion, CFGPC and OPCC has significant differences in terms of the correlations between mechanical properties. The empirical equations obtained in this study could provide relatively accurate predictions on the mechanical behavior of CFGPC. |
| first_indexed | 2024-03-10T20:42:32Z |
| format | Article |
| id | doaj.art-036a4a156c0e4bb191b1355579a70227 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T20:42:32Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-036a4a156c0e4bb191b1355579a702272023-11-19T20:30:35ZengMDPI AGMaterials1996-19442020-04-01137165110.3390/ma13071651Experimental and Statistical Study on Mechanical Characteristics of Geopolymer ConcreteYifei Cui0Kaikai Gao1Peng Zhang2Center for Durability & Sustainability Studies of Shandong Province, Qingdao University of Technology, Qingdao 266033, ChinaCenter for Durability & Sustainability Studies of Shandong Province, Qingdao University of Technology, Qingdao 266033, ChinaCenter for Durability & Sustainability Studies of Shandong Province, Qingdao University of Technology, Qingdao 266033, ChinaThis paper studies the statistical correlation in mechanical characteristics of class F fly ash based geopolymer concrete (CFGPC). Experimentally measured values of the compressive strength, elastic modulus and indirect tensile strength of CFGPC specimens made from class F fly ash (CFA) were presented and analyzed. The results were compared with those of corresponding ordinary Portland cement concrete (OPCC) using statistical hypothesis tests. Results illustrated that when possessing similar compressive and tensile strength, the elastic modulus for CFGPC is significantly lower than that of OPCC. The corresponding expressions recommended by standards for the case of OPCC is proved to be inaccurate when applied in the case of CFGPC. Statistical regression was used to identify tendencies and correlations within the mechanical characteristics of CFGPC, as well as the empirical equations for predicting tensile strength and elastic modulus of CFGPC from its compressive strength values. In conclusion, CFGPC and OPCC has significant differences in terms of the correlations between mechanical properties. The empirical equations obtained in this study could provide relatively accurate predictions on the mechanical behavior of CFGPC.https://www.mdpi.com/1996-1944/13/7/1651geopolymer concretestatisticsmechanical characteristics |
| spellingShingle | Yifei Cui Kaikai Gao Peng Zhang Experimental and Statistical Study on Mechanical Characteristics of Geopolymer Concrete Materials geopolymer concrete statistics mechanical characteristics |
| title | Experimental and Statistical Study on Mechanical Characteristics of Geopolymer Concrete |
| title_full | Experimental and Statistical Study on Mechanical Characteristics of Geopolymer Concrete |
| title_fullStr | Experimental and Statistical Study on Mechanical Characteristics of Geopolymer Concrete |
| title_full_unstemmed | Experimental and Statistical Study on Mechanical Characteristics of Geopolymer Concrete |
| title_short | Experimental and Statistical Study on Mechanical Characteristics of Geopolymer Concrete |
| title_sort | experimental and statistical study on mechanical characteristics of geopolymer concrete |
| topic | geopolymer concrete statistics mechanical characteristics |
| url | https://www.mdpi.com/1996-1944/13/7/1651 |
| work_keys_str_mv | AT yifeicui experimentalandstatisticalstudyonmechanicalcharacteristicsofgeopolymerconcrete AT kaikaigao experimentalandstatisticalstudyonmechanicalcharacteristicsofgeopolymerconcrete AT pengzhang experimentalandstatisticalstudyonmechanicalcharacteristicsofgeopolymerconcrete |