Civil Engineering and Architecture Vol. 6(2), pp. 54 - 64
DOI: 10.13189/cea.2018.060202
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Application of Scheffe's Theory to Develop Mathematical Prediction Model to Predict UCS for Hybrid Containing Organic Soil and POFA-OPC Additives

Yaser Gamil ^*, Kemas Ahmed Zamahri , Ismail Bakar
Faculty of Civil and Environmental Engineering, Tun Hussein Onn University of Malaysia, Malaysia

ABSTRACT

Unconfined compressive strength (UCS) is very significant parameters to evaluate the strength property of soil. In laboratory, it requires machinery and effort to determine UCS. Therefore, to predict UCS of organic soil stabilized by Palm Oil Fuel Ash-Ordinary Portland Cement (POFA-OPC) at less time and less cost for additive selection percentage the prediction model can simplify the selection of additives percentage by reducing the random selection of additives percentage and its disadvantageous results. As a result of that, the use of the prediction model eliminates the arbitrary selection of design mixes and its associated disadvantages. This paper is a continuous to previous publication by authors on the application of Scheffe's theory to predict resilient modulus however, this paper focused on the implementation of Scheffe's regression theory to develop mathematical model to predict UCS based on proposed mix proportions. The mixes were developed analytically from previous adopted rations of additives. The materials were characterized and investigated for the primary properties then the samples of POFA -OPC additives were prepared for the size of 70mm diameter and 140 height. 25 samples were designed and characterized for each mix proportion based on the UCS in 28 days curing. The Results of observed values from laboratory analysis are used to develop the mathematical model. In addition to that, the model was statistically scrutinized and confirmed for the adequacy and validity using f-test. The results showed that, the model is verified and adequate to predict UCS for any random POFA-OPC additives percentage.

KEYWORDS
Palm Oil Fuel Ash, Unconfined Compressive Strength, Mathematical Prediction Model

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Yaser Gamil , Kemas Ahmed Zamahri , Ismail Bakar , "Application of Scheffe's Theory to Develop Mathematical Prediction Model to Predict UCS for Hybrid Containing Organic Soil and POFA-OPC Additives," Civil Engineering and Architecture, Vol. 6, No. 2, pp. 54 - 64, 2018. DOI: 10.13189/cea.2018.060202.

(b). APA Format:
Yaser Gamil , Kemas Ahmed Zamahri , Ismail Bakar (2018). Application of Scheffe's Theory to Develop Mathematical Prediction Model to Predict UCS for Hybrid Containing Organic Soil and POFA-OPC Additives. Civil Engineering and Architecture, 6(2), 54 - 64. DOI: 10.13189/cea.2018.060202.