Yiping Qiu , Chengming Li , Yiqun Zhang , Yuan Feng , Sergei Leonovich , Piqi Zhao , Shoude Wang
{"title":"低钙石灰石中的富氧化镁对 C4A3$-C2S 熟料煅烧和性能的影响","authors":"Yiping Qiu , Chengming Li , Yiqun Zhang , Yuan Feng , Sergei Leonovich , Piqi Zhao , Shoude Wang","doi":"10.1016/j.gerr.2024.100099","DOIUrl":null,"url":null,"abstract":"<div><div>As one type of low-calcium cement, C<sub>4</sub>A<sub>3</sub>$-C<sub>2</sub>S clinker consumes less energy and can utilize rich-MgO low-calcium limestone. The effect of rich-MgO low-calcium limestone on its calcination and properties is studied by means of f-CaO, XRD Rietveld refinement, TG-DTG and Lithofacies analysis. The results show that 3%∼5% MgO can promote the absorption of f-CaO and accelerate the formation of highly active monoclinic C<sub>3</sub>S and C<sub>4</sub>AF in clinker. When the MgO content is 7% and 8%, C<sub>4</sub>A<sub>3</sub>$-C<sub>2</sub>S clinker calcined at 1380°C has excellent mechanical properties and its soundness is still qualified. This research shows that the rich-MgO low-calcium limestone can replace more than 50% of natural limestone to prepare C<sub>4</sub>A<sub>3</sub>$-C<sub>2</sub>S clinker in cement industrial production.</div></div>","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 4","pages":"Article 100099"},"PeriodicalIF":0.0000,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of rich-MgO from low-calcium limestone on the calcination and properties of C4A3$-C2S clinker\",\"authors\":\"Yiping Qiu , Chengming Li , Yiqun Zhang , Yuan Feng , Sergei Leonovich , Piqi Zhao , Shoude Wang\",\"doi\":\"10.1016/j.gerr.2024.100099\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>As one type of low-calcium cement, C<sub>4</sub>A<sub>3</sub>$-C<sub>2</sub>S clinker consumes less energy and can utilize rich-MgO low-calcium limestone. The effect of rich-MgO low-calcium limestone on its calcination and properties is studied by means of f-CaO, XRD Rietveld refinement, TG-DTG and Lithofacies analysis. The results show that 3%∼5% MgO can promote the absorption of f-CaO and accelerate the formation of highly active monoclinic C<sub>3</sub>S and C<sub>4</sub>AF in clinker. When the MgO content is 7% and 8%, C<sub>4</sub>A<sub>3</sub>$-C<sub>2</sub>S clinker calcined at 1380°C has excellent mechanical properties and its soundness is still qualified. This research shows that the rich-MgO low-calcium limestone can replace more than 50% of natural limestone to prepare C<sub>4</sub>A<sub>3</sub>$-C<sub>2</sub>S clinker in cement industrial production.</div></div>\",\"PeriodicalId\":100597,\"journal\":{\"name\":\"Green Energy and Resources\",\"volume\":\"2 4\",\"pages\":\"Article 100099\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Green Energy and Resources\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2949720524000535\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Green Energy and Resources","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2949720524000535","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effect of rich-MgO from low-calcium limestone on the calcination and properties of C4A3$-C2S clinker
As one type of low-calcium cement, C4A3$-C2S clinker consumes less energy and can utilize rich-MgO low-calcium limestone. The effect of rich-MgO low-calcium limestone on its calcination and properties is studied by means of f-CaO, XRD Rietveld refinement, TG-DTG and Lithofacies analysis. The results show that 3%∼5% MgO can promote the absorption of f-CaO and accelerate the formation of highly active monoclinic C3S and C4AF in clinker. When the MgO content is 7% and 8%, C4A3$-C2S clinker calcined at 1380°C has excellent mechanical properties and its soundness is still qualified. This research shows that the rich-MgO low-calcium limestone can replace more than 50% of natural limestone to prepare C4A3$-C2S clinker in cement industrial production.
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