Utilization of incinerator waste paper sludge ash as cement replacement in cement-bonded particleboard

Rahim S. Forest Research Institute Malaysia, . and Marzuki A. R. Teknologi MARA Univ., . and Hamidah M. S., . and Ahmad Ruslan M. R., . (2009) Utilization of incinerator waste paper sludge ash as cement replacement in cement-bonded particleboard. [Proceedings Paper]

A feasibility study was carried out to explore the possibility of making cement-bonded particleboard CBP using 16-y-old Leucaena leucocephala wood particles and waste paper sludge ash WPSA generated from incinerator as cement replacement. The experimental design consisted of three mixing levels of wood-to-cement ratio namely 1:2.0 1:2.25 and 1:2.5. WPSA which is normally discarded and has some pozzolonic reaction was used as partial replacement for ordinary Portland cement at 10 20 and 30 based on oven-dried weight of cement. A small percentage of cement accelerator with 1.5 aluminium sulphate AI2S043 and 1 sodium silicate Na2SiO3 were incorporated into the mixing system to improve the bonding properties between the binder and matrix. The results showed significant differences in the mechanical properties of the board. The modulus of rupture MOR was in the range 6.46-9.76 MPa modulus of elasticity MOE 2569-4008 MPa and internal bond IB 0.36-0.89 MPa respectively. The results show that the mechanical properties of the boards generally decreased as the cement:wood ratio and percentage of WPSA were increased. This paper discusses the effects of WPSA and wood:cement ratio on the strength properties of CBP.

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Abstract

A feasibility study was carried out to explore the possibility of making cement-bonded particleboard CBP using 16-y-old Leucaena leucocephala wood particles and waste paper sludge ash WPSA generated from incinerator as cement replacement. The experimental design consisted of three mixing levels of wood-to-cement ratio namely 1:2.0 1:2.25 and 1:2.5. WPSA which is normally discarded and has some pozzolonic reaction was used as partial replacement for ordinary Portland cement at 10 20 and 30 based on oven-dried weight of cement. A small percentage of cement accelerator with 1.5 aluminium sulphate AI2S043 and 1 sodium silicate Na2SiO3 were incorporated into the mixing system to improve the bonding properties between the binder and matrix. The results showed significant differences in the mechanical properties of the board. The modulus of rupture MOR was in the range 6.46-9.76 MPa modulus of elasticity MOE 2569-4008 MPa and internal bond IB 0.36-0.89 MPa respectively. The results show that the mechanical properties of the boards generally decreased as the cement:wood ratio and percentage of WPSA were increased. This paper discusses the effects of WPSA and wood:cement ratio on the strength properties of CBP.

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Item Type:	Proceedings Paper
Additional Information:	3 tables
AGROVOC Term:	Waste paper
AGROVOC Term:	Sewage sludge ash
AGROVOC Term:	Wood ash
AGROVOC Term:	Ash Combustion product
AGROVOC Term:	Leucaena leucocephala
AGROVOC Term:	Waste incineration
AGROVOC Term:	Malaysia
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:14
URI:	http://webagris.upm.edu.my/id/eprint/11448

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