Publisher: Chemical Society of Nigeria

Assessment of The Quality of Some Imported Cement Brands

V. E. Agbazue, C. A. Chinwuba
KEYWORDS: Cement, analysis, quality, standard.

ABSTRACT:

Four brands of imported cement (labeled A,B,C and D) were tested for chemical and physical properties, in accordance with Nigerian standard specification. CaO, SiO2, Al2O3, Fe2O3, SO3, free lime, loss on ignition (LOI) and insoluble residue (IR) were determined. The cement samples were also tested for the following physical properties: consistency, setting time, soundness, compressive strength and fineness. The results obtained were compared with Nigerian Industrial Standard (NIS) and British Standard (BS.). D and C brands fully complied with the specifications of NIS and BS. B recorded 32% deviation from the minimum stipulated LOI, while A displayed 5.88% deviation from the minimum stipulated 28 days compressive strength, of NIS


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