Date

10-2009

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Menandro N. Acda

Committee Member

Rex B. Demafelis, Teodulfo S. Delgado, Ronniel D. Manalo

Abstract

Paper mill sludge was oven dried and grinded to partially replace sand aggregates in cement mortas. Five samples of different sludge proportions were done 0, 5%, 10%, 20%, and 40%. Daracem and calcium chloride were added to evenly distribute mortar components and accelerate curing time. Mortars for compression test were molded in a 101.6-mm by 203.2-mm PVC pipe while mortars for dimensional stability test, water absorption and thickness swelling, were molded in 50.8 mm by 50.8 mm by 50.8 mm wire-held wood sticks. The mortars were observed to have decreasing density with increasing sludge content. Test for compressive strength showed maximum load applied decreased with increasing sludge content. Although 0, 5%, and 10% mortar did not exhibit thickness swelling, 20% and 40% manifested an increase in thickness swelling. Statistical analysis showed that sludge content has significant effect on the compressive strength and dimensional quality of the mortars. Results suggest that: 5% sludge proportion could be used in general purpose mortar mix 10% sludge proportion may be incorporated in above grade non-load bearing interior and exterior applications and 20% sludge proportions may be used for historic preservations only.

Language

English

LC Subject

Paper, Pulp and paper technology

Call Number

LG 993.5 2009 E62 L43

Document Type

Thesis

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