Microstructure and Properties of Sulfoaluminate Cement-Based Grouting Materials: Effect of Calcium Sulfate Variety
Effect of calcium sulfate variety on the microstructure and properties of cement-based grouting materials made by sulfoaluminate cement clinker, calcium sulfate resource, and quicklime was investigated in this paper. Isothermal calorimetric, XRD, DTA-TG, and SEM-EDS were used to characterize the rea...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/7564108 |
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| author | Jianwu Zhang Xuemao Guan Xiao Wang Xianwei Ma Zhixin Li Zhuoyue Xu Biao Jin |
| author_facet | Jianwu Zhang Xuemao Guan Xiao Wang Xianwei Ma Zhixin Li Zhuoyue Xu Biao Jin |
| author_sort | Jianwu Zhang |
| collection | DOAJ |
| description | Effect of calcium sulfate variety on the microstructure and properties of cement-based grouting materials made by sulfoaluminate cement clinker, calcium sulfate resource, and quicklime was investigated in this paper. Isothermal calorimetric, XRD, DTA-TG, and SEM-EDS were used to characterize the reaction process of cement-based grouting materials. The mechanical property and expansion of the harden body were also tested. The results showed that (1) the formation of ettringite can be completed during the first 2 h when gypsum was selected, causing nonexpansion of the harden body, and ettringite tends to be precipitated near the clinker grain, which has a negative influence on the “skeleton effect” of ettringite, resulting in lower strength of the hardened body. (2) Ettringite can be continually and slowly precipitated when an anhydride was chosen, and the hardened body shows significant expansion characteristic. Besides, ettringite in anhydride paste tends to be precipitated in the form of complex interleaving, which can generate a positive influence on mechanical property of the hardened paste. |
| format | Article |
| id | doaj-art-f641fdea375d4fb290b6ae09790bcfbc |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-f641fdea375d4fb290b6ae09790bcfbc2025-02-03T01:25:49ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/75641087564108Microstructure and Properties of Sulfoaluminate Cement-Based Grouting Materials: Effect of Calcium Sulfate VarietyJianwu Zhang0Xuemao Guan1Xiao Wang2Xianwei Ma3Zhixin Li4Zhuoyue Xu5Biao Jin6School of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 4670362, ChinaSchool of Material Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 4670362, ChinaSchool of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 4670362, ChinaSchool of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 4670362, ChinaSchool of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 4670362, ChinaSchool of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 4670362, ChinaEffect of calcium sulfate variety on the microstructure and properties of cement-based grouting materials made by sulfoaluminate cement clinker, calcium sulfate resource, and quicklime was investigated in this paper. Isothermal calorimetric, XRD, DTA-TG, and SEM-EDS were used to characterize the reaction process of cement-based grouting materials. The mechanical property and expansion of the harden body were also tested. The results showed that (1) the formation of ettringite can be completed during the first 2 h when gypsum was selected, causing nonexpansion of the harden body, and ettringite tends to be precipitated near the clinker grain, which has a negative influence on the “skeleton effect” of ettringite, resulting in lower strength of the hardened body. (2) Ettringite can be continually and slowly precipitated when an anhydride was chosen, and the hardened body shows significant expansion characteristic. Besides, ettringite in anhydride paste tends to be precipitated in the form of complex interleaving, which can generate a positive influence on mechanical property of the hardened paste.http://dx.doi.org/10.1155/2020/7564108 |
| spellingShingle | Jianwu Zhang Xuemao Guan Xiao Wang Xianwei Ma Zhixin Li Zhuoyue Xu Biao Jin Microstructure and Properties of Sulfoaluminate Cement-Based Grouting Materials: Effect of Calcium Sulfate Variety Advances in Materials Science and Engineering |
| title | Microstructure and Properties of Sulfoaluminate Cement-Based Grouting Materials: Effect of Calcium Sulfate Variety |
| title_full | Microstructure and Properties of Sulfoaluminate Cement-Based Grouting Materials: Effect of Calcium Sulfate Variety |
| title_fullStr | Microstructure and Properties of Sulfoaluminate Cement-Based Grouting Materials: Effect of Calcium Sulfate Variety |
| title_full_unstemmed | Microstructure and Properties of Sulfoaluminate Cement-Based Grouting Materials: Effect of Calcium Sulfate Variety |
| title_short | Microstructure and Properties of Sulfoaluminate Cement-Based Grouting Materials: Effect of Calcium Sulfate Variety |
| title_sort | microstructure and properties of sulfoaluminate cement based grouting materials effect of calcium sulfate variety |
| url | http://dx.doi.org/10.1155/2020/7564108 |
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