| Adherence Characteristics of Cement Clinker on Basic Bricks |
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| 作者姓名： | GUO Zongqi Michel Rigaud |
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| 作者单位： | EcolePolytechnique,UniversityofMontreal8475Christophe-Colomb,Montreal,Quebec,CanadaH2M2N9 |
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| 摘 要： | Based on the sandwich test,adherence mechanisms of cement clinker on various basic bricks were tackled by microstructural observations with help of cathodoluminescence technique.Doloma based bricks offer sufficient lime to react with clinker,forming C3S rich layer and initializing superior adherence.However,clinker with low silica ratio leads to MgO agglomeration at the interface of doloma bricks,which reduces adherence strength.On magnesia spinel bricks,fine crystalline spinel easily reacts with lime containing phases from clinker to form lowmelting phases and belite zone,which shows high adherence performance.Lack of fine spinel in magnesia spinel bricks results in poor adherence.
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| 关 键 词： | 粘合机理 水泥煤渣 碱性砖 氧化镁 水泥回转炉 耐火材料 |
Adherence Characteristics of Cement Clinker on Basic Bricks |
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| GUO Zongqi Michel Rigaud.Adherence Characteristics of Cement Clinker on Basic Bricks[J].China’s Refractories,2002,11(4):9-16. |
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| Authors: | GUO Zongqi Michel Rigaud |
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| Abstract: | Based on the sandwich test, adherence mechanisms of cement clinker on various basic bricks were tackled by microstructural observations with help of cathodolumi-nescence technique. Doloma based bricks offer sufficient lime to react with clinker, forming C3S rich layer and initializing superior adherence. However, clinker with low silica ratio leads to MgO agglomeration at the interface of doloma bricks, which reduces adherence strength. On magnesia spinel bricks , fine, crystalline spinel easily reacts with lime containing phases from clinker to form low-melting phases and belite zone, which shows high adherence performance. Lack of fine spinel in magnesia spinel bricks results in poor adherence. |
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| Keywords: | Basic brick Cement clinker Cement rotary kiln Adherence mechanism |
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