Martin Boháč , Dana Kubátová , Michaela Krejčí Kotlánová , Ingrid Khongová , Anežka Zezulová , Radoslav Novotný , Martin Tchingnabé Palou , Theodor Staněk , Dalibor Všianský
{"title":"Li2O、MgO和CuO对SO3活化熟料的作用","authors":"Martin Boháč , Dana Kubátová , Michaela Krejčí Kotlánová , Ingrid Khongová , Anežka Zezulová , Radoslav Novotný , Martin Tchingnabé Palou , Theodor Staněk , Dalibor Všianský","doi":"10.1016/j.cemconres.2021.106672","DOIUrl":null,"url":null,"abstract":"<div><p>Clinkers activated by SO<sub>3</sub> and modified by Li<sub>2</sub><span>O, CuO and MgO<span> were prepared from industrial raw materials and burned at 1350 °C. The role of dopants on the burnability of the raw mix was monitored by TG-DTA and heating microscopy. The phase composition of the clinker was characterized by light microscopy, scanning electron microscopy, and X-ray powder diffraction. Predominance of M</span></span><sub>1</sub> over M<sub>3</sub> C<sub>3</sub><span><span>S was determined in all combinations of dopants. Hydration of cement pastes was followed by </span>isothermal<span><span> calorimetry<span> during the first 48 h and strength development of </span></span>cement mortars during 365 days of curing. The content of SO</span></span><sub>3</sub> incorporated in clinker silicates is lower in the presence of Li<sub>2</sub><span>O and CuO due to the enrichment of interstitial matter. Thermal analysis shows that Li</span><sub>2</sub>O and CuO in combination with SO<sub>3</sub> are strong mineralizers and fluxes during clinkering process.</p></div>","PeriodicalId":266,"journal":{"name":"Cement and Concrete Research","volume":"152 ","pages":"Article 106672"},"PeriodicalIF":13.1000,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"The role of Li2O, MgO and CuO on SO3 activated clinkers\",\"authors\":\"Martin Boháč , Dana Kubátová , Michaela Krejčí Kotlánová , Ingrid Khongová , Anežka Zezulová , Radoslav Novotný , Martin Tchingnabé Palou , Theodor Staněk , Dalibor Všianský\",\"doi\":\"10.1016/j.cemconres.2021.106672\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Clinkers activated by SO<sub>3</sub> and modified by Li<sub>2</sub><span>O, CuO and MgO<span> were prepared from industrial raw materials and burned at 1350 °C. The role of dopants on the burnability of the raw mix was monitored by TG-DTA and heating microscopy. The phase composition of the clinker was characterized by light microscopy, scanning electron microscopy, and X-ray powder diffraction. Predominance of M</span></span><sub>1</sub> over M<sub>3</sub> C<sub>3</sub><span><span>S was determined in all combinations of dopants. Hydration of cement pastes was followed by </span>isothermal<span><span> calorimetry<span> during the first 48 h and strength development of </span></span>cement mortars during 365 days of curing. The content of SO</span></span><sub>3</sub> incorporated in clinker silicates is lower in the presence of Li<sub>2</sub><span>O and CuO due to the enrichment of interstitial matter. Thermal analysis shows that Li</span><sub>2</sub>O and CuO in combination with SO<sub>3</sub> are strong mineralizers and fluxes during clinkering process.</p></div>\",\"PeriodicalId\":266,\"journal\":{\"name\":\"Cement and Concrete Research\",\"volume\":\"152 \",\"pages\":\"Article 106672\"},\"PeriodicalIF\":13.1000,\"publicationDate\":\"2022-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cement and Concrete Research\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0008884621003215\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CONSTRUCTION & BUILDING TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cement and Concrete Research","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0008884621003215","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
The role of Li2O, MgO and CuO on SO3 activated clinkers
Clinkers activated by SO3 and modified by Li2O, CuO and MgO were prepared from industrial raw materials and burned at 1350 °C. The role of dopants on the burnability of the raw mix was monitored by TG-DTA and heating microscopy. The phase composition of the clinker was characterized by light microscopy, scanning electron microscopy, and X-ray powder diffraction. Predominance of M1 over M3 C3S was determined in all combinations of dopants. Hydration of cement pastes was followed by isothermal calorimetry during the first 48 h and strength development of cement mortars during 365 days of curing. The content of SO3 incorporated in clinker silicates is lower in the presence of Li2O and CuO due to the enrichment of interstitial matter. Thermal analysis shows that Li2O and CuO in combination with SO3 are strong mineralizers and fluxes during clinkering process.
期刊介绍：
Cement and Concrete Research is dedicated to publishing top-notch research on the materials science and engineering of cement, cement composites, mortars, concrete, and related materials incorporating cement or other mineral binders. The journal prioritizes reporting significant findings in research on the properties and performance of cementitious materials. It also covers novel experimental techniques, the latest analytical and modeling methods, examination and diagnosis of actual cement and concrete structures, and the exploration of potential improvements in materials.
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