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Variation of fly ash and pulp paper composition at 110°C for 6 hours was carried out to discern the effect of fly ash and pulp paper addition in papercrete. sixth variations in paper pulp and fly ash composition were employed to perceive the characteristic that occurs in the sample. The papercrete material composition was weighed, mixed until it became homogeneous and then casted in a mold with a size of 18 x 5 x 2 cm3. Papercrete samples were allowed to stand within the mold at room temperature for 24 hours and released from the mold to stand again for the next 24 hours, after which it heated at 110°C for 6 hours. Characterization using XRF, SEM-EDX as well as Mechanical and physical tests carried out after the samples was cold. Papercrete with sample code K6 has the highest flexural strength and density value of 2.03 MPa and 2.4 gr/cm3 while papercrete with sample code K1 has the lowest flexural strength and porosity value of 0.4 MPa and 17.89%. Characterization shows that the chemical composition of the samples was dominated by the oxide compound CaO and SiO2 in papercrete. [ABSTRACT FROM AUTHOR]