Modification of grout properties in prepacked aggregate concrete incorporating palm oil fuel ash

Prepacked aggregate concrete (PAC) is a type of concrete that is placed in two stages where the coarse aggregates are first placed inside the formworks and then the grout is pumped from underneath through a manual pump. Grout properties including density, grout consistency, bleeding, and compressive...

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Bibliographic Details
Main Authors: Hodjati, Reza, Aslani, Hossein, Faridmehr, Iman, Abdul Awal, A. S. M., Kazemi, Ziba
Format: Article
Published: Hindawi 2015
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Summary:Prepacked aggregate concrete (PAC) is a type of concrete that is placed in two stages where the coarse aggregates are first placed inside the formworks and then the grout is pumped from underneath through a manual pump. Grout properties including density, grout consistency, bleeding, and compressive strength are of great importance in PAC. Such properties could be improved by application of pozzolanic materials like palm oil fuel ash. This paper is aimed at finding the most optimum percentage of POFA replacement by weight of cement. It was concluded that 30% POFA replacement yielded the most optimum results.