Effect of Polycarboxylate Admixture on the Performance of Fluorogypsum-Based Self-Leveling Material
The study explores the influence of polycarboxylate admixture (PCE) on fluorogypsum-based self-leveling material (FSLM) performance. Wev conducted an array of tests to assess workability and mechanical properties, and utilized XRD, TG-DSC, SEM, and MIP techniques for microscopic analysis. The fresh...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/23/12802 |
| _version_ | 1797400460062097408 |
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| author | Li Fan Shuangyan Xiong Wenting Wang Jianxin Zhang Lu Zeng |
| author_facet | Li Fan Shuangyan Xiong Wenting Wang Jianxin Zhang Lu Zeng |
| author_sort | Li Fan |
| collection | DOAJ |
| description | The study explores the influence of polycarboxylate admixture (PCE) on fluorogypsum-based self-leveling material (FSLM) performance. Wev conducted an array of tests to assess workability and mechanical properties, and utilized XRD, TG-DSC, SEM, and MIP techniques for microscopic analysis. The fresh state results showed that PCE enables FSLM to achieve good workability at lower water demand. It was found that PCE partially inhibited plaster hydration from anhydrite to dihydrate, as observed by X-ray diffraction analysis and thermogravimetric analysis, and with the increasing in PCE, the mass loss of samples reached 15.66% at 28 days. The mechanical properties and the microstructure studies proved that the optimal PCE doping level is 0.14%. At this doping level, there is an enhancement in the denseness of the hardened structure, a reduction in porosity—especially when the pores are more than 200 nm, optimization of pore size distribution, an increase in crystal aspect ratio, an enhancement in effective intergranular overlap, and a significant improvement in the 28-day flexural and compressive strength to 7.2 MPa and 36 MPa, respectively. The FSLM prepared under these conditions demonstrates good performance and meets the primary performance index requirements of the Chinese Industry Standard JC/T 1023-2021 (gypsum-based self-leveling floor compound), thereby promoting the comprehensive utilization of fluorogypsum. |
| first_indexed | 2024-03-09T01:54:54Z |
| format | Article |
| id | doaj.art-8379f6de33d545cb96b2022d01bb7399 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T01:54:54Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-8379f6de33d545cb96b2022d01bb73992023-12-08T15:11:46ZengMDPI AGApplied Sciences2076-34172023-11-0113231280210.3390/app132312802Effect of Polycarboxylate Admixture on the Performance of Fluorogypsum-Based Self-Leveling MaterialLi Fan0Shuangyan Xiong1Wenting Wang2Jianxin Zhang3Lu Zeng4College of Resource and Safety, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaThe study explores the influence of polycarboxylate admixture (PCE) on fluorogypsum-based self-leveling material (FSLM) performance. Wev conducted an array of tests to assess workability and mechanical properties, and utilized XRD, TG-DSC, SEM, and MIP techniques for microscopic analysis. The fresh state results showed that PCE enables FSLM to achieve good workability at lower water demand. It was found that PCE partially inhibited plaster hydration from anhydrite to dihydrate, as observed by X-ray diffraction analysis and thermogravimetric analysis, and with the increasing in PCE, the mass loss of samples reached 15.66% at 28 days. The mechanical properties and the microstructure studies proved that the optimal PCE doping level is 0.14%. At this doping level, there is an enhancement in the denseness of the hardened structure, a reduction in porosity—especially when the pores are more than 200 nm, optimization of pore size distribution, an increase in crystal aspect ratio, an enhancement in effective intergranular overlap, and a significant improvement in the 28-day flexural and compressive strength to 7.2 MPa and 36 MPa, respectively. The FSLM prepared under these conditions demonstrates good performance and meets the primary performance index requirements of the Chinese Industry Standard JC/T 1023-2021 (gypsum-based self-leveling floor compound), thereby promoting the comprehensive utilization of fluorogypsum.https://www.mdpi.com/2076-3417/13/23/12802fluorogypsumpolycarboxylate admixtureself-leveling materialhydration mechanism |
| spellingShingle | Li Fan Shuangyan Xiong Wenting Wang Jianxin Zhang Lu Zeng Effect of Polycarboxylate Admixture on the Performance of Fluorogypsum-Based Self-Leveling Material Applied Sciences fluorogypsum polycarboxylate admixture self-leveling material hydration mechanism |
| title | Effect of Polycarboxylate Admixture on the Performance of Fluorogypsum-Based Self-Leveling Material |
| title_full | Effect of Polycarboxylate Admixture on the Performance of Fluorogypsum-Based Self-Leveling Material |
| title_fullStr | Effect of Polycarboxylate Admixture on the Performance of Fluorogypsum-Based Self-Leveling Material |
| title_full_unstemmed | Effect of Polycarboxylate Admixture on the Performance of Fluorogypsum-Based Self-Leveling Material |
| title_short | Effect of Polycarboxylate Admixture on the Performance of Fluorogypsum-Based Self-Leveling Material |
| title_sort | effect of polycarboxylate admixture on the performance of fluorogypsum based self leveling material |
| topic | fluorogypsum polycarboxylate admixture self-leveling material hydration mechanism |
| url | https://www.mdpi.com/2076-3417/13/23/12802 |
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