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عنوان البحث(Papers / Research Title)


Reducing Kaolin Shrinkage by Using Kaolin Grog


الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)

 
قتيبة حسين محمد المرزوكي

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قتيبة,حسين,محمد,المرزوكي ,Reducing Kaolin Shrinkage by Using Kaolin Grog , Time 10/16/2011 7:30:11 AM : كلية هندسة المواد

وصف الابستركت (Abstract)


Reducing Kaolin Shrinkage by Using Kaolin Grog

الوصف الكامل (Full Abstract)


ABSTRACT
 
    In this work, the suitability of using local Kaolin and Kaolin Grog to reduce shrinkage in clay product like firebrick was experimentally investigated and the optimal ratio of Kaolin grog constituent determined. Ten samples of different compositions were fired at a temperature of 1200?C. Three of the samples (samples 8, 9, and 10) crumbled during firing. The surviving samples gave the following limits of results:- Total shrinkage: 28%- 9.8%; apparent porosity: 63.6% - 77.13%; water absorption: 47.83% - 60.2%; bulk density: 1.329g/cm3 - 1.281g/cm3; apparent density: 5.60g/cm3 – 3.65g/cm3; and compressive strength: 61.5MPa – 52.11MPa. The results showed that the first seven samples had good shrinkage and compressive strength. Mixing ratio of 35:100 (representing weight in grams of water and Kaolin respectively) which represent the critical water content.

Keywords:-Kaolin clay, grog, total shrinkage, compressive strength, physical tests.

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