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A Study Of Physical Properties OF Selected Nigerian Clays For Furnace Brick Lining Production

Inegbenebor, A.O. (2002) A Study Of Physical Properties OF Selected Nigerian Clays For Furnace Brick Lining Production. Global Journall of MechanicalEngineering, 3 (1). pp. 69-77.

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The physical properties of some clay deposits from six locations ~pread over three States in Nigeria have been investigated for furnqce brick lining (refractory) production The principal jJroperfies of the clays determined were: sticking point tempera.ture, sinlering temperature, cold crushing strength, bulk density, appatent porosity, shrinkage/growth and thermal shock resistance. Shuwari clay has a refractoriness of 150rfC, apparent porosity, 14.02%, bulk density, 1.88 Mgm·3 • cold crushing strength, 7. 75 MPa. shrinkage/growth, 1.52% and thermal resistance of 6 cycles. Pulka clay has J sintering temperature of 125rfC wilh corresponding refractoriness of 140rfC, cold cntshing strength, 9. 25 lvfpa, apparent porosity, 15.87 %, bulk density, 1.61kfgm-3 and thermal shock resistance 1 cycle. Ngala clay has a low firing temperatun; of 1 OOO"C, sintering temperature, 120(/'C. Its cold crushing strength. apparent porosity and thermal shock resistance were not determined Ubulu-Uku clay sintering temperature was 1700"C, its estimated refractoriness 1900"C; apparent porosity, 17.0 %, bulk density 1. 70 Mgm-3 , and its estimated ·thermal shock resistance was 14 cycles. Ememukohwarien clay has sintering temperature of 140ffC. estimated refractoriness. 1650°C, cold cmshing strength, 7.74 1vfpii, bulk density. of 1. 78 Mgm·3 , apparent porosity, 16.77% and thermal shock resistance of 12 cycles. ljetu clay has sintering temperalure of 145rfC, estimated refractoriness, 170ifC, cold crushing strength was J 7.21 !vfpa, bulk density, 1. 7 4 Mgm·3 , apparent porosity, 15. 70% and thermal shpck resistance 12 cycles. The possible areas of application of the clays have been suggested in this paper.

Item Type: Article
Uncontrolled Keywords: Clay, refractory, equf.ltorial zo~te, aritl zone, principal properties
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 30 Mar 2015 14:42
Last Modified: 30 Mar 2015 14:42

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