Performance Of Groundnut Shell Ash In Construction Materials

The continuous increase in the price of Portland cement is attributed to the insufficient production rate of the raw material.

Performance Of Groundnut Shell Ash In construction Materials

Materials compared to the rate of demand in the construction industries. During and after the harvest of peanuts, the shell is considered a waste product that when accumulated in large quantities in a particular area constitute an environmental hazard. Therefore, the use of peanut shell ash reduces the environmental problem resulting from the accumulation of shells in large quantity in a given area. 

In recent times, the knowledge of the natural materials of pozzolana the use as a partial replacement for cement has increased substantially. The literature is wide ranging and diverse research works. are available that have indicated several advantages in the use of pozzolans in the production of concrete.  

However, it has been shown that the hydration process of concrete slows down with the addition of these substitutes and again the initial stage resistance is reduced compared to normal ordinary Portland cement concrete (OPC). 

Today, issues related to environmental conservation have gained importance, therefore, it is now necessary to use these waste materials that are available in our environment. In related works, fly ash, volcanic ash, rice husk ash and etc. have been used as a partial replacement for cement in concrete job. 

The replacement level of 0-50% was carried out by comparing the strength property with that recommends that cement partially replaced with pozzolans achieve a compressive strength of 65 to 95% of the control sample (i.e. 0% substitutions) within 28 days and therefore an optimal substitution of 20% is recommended.

Research Papers and References:

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2006, Manuscript BC 05 012, vol.VIII. 
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use as a mineral admixture in Portland cement concrete. ASTMC 2005, 618-78. 
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Nwofor, T.C and Eme, D.B., Journal of Chemical, Mechanical and Engineering Practice, 2010, vol.1, Nos. 2 & 
3, pp.42-47. 
Olawuyi, B.J. and Olusola, K.O., Civil Engineering Dimension, 2010, vol.12, no.1, pp.23-28. 
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characteristics of high-strength/high-performance concrete incorporating supplementary cementing materials under 
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and Design. FAO/SIDA Cooperative Programme. Rome: Food and Agricultural Organization, 1986. 
British Standards Institution, Specifications for pulverized fuel ash for use with Portland cement in concrete. 
London,1997, BS 3892: I. American Society for Testing and Materials, Specifications for pozzolanas. ASTM International, USA, ASTM 
C618, 1978. 
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