Utilization of coconut sawdust and rice hull ash in the manufacture if brick tiles /
by Lalaine H. Siruno.
- Indang, Cavite, Cavite State University- Main Campus, 1999.
- 60p. : ill. ; 28 cm. illustrations ; cm.
Applied Research IV (Agri-Science Curriculum) Cavite State University
Includes bibliographical references.
SIRUNO, LALAINE H., Applied Research IV (General Science Curriculum), Cavite State University, Indang, Cavite, April, 1999, “UTILIZATION OF COCONUT SAWDUST AND RICE HULL ASH IN THE MANUFACTURE OF BRICK TILES.” Advisers: Engr. Renato B. Cubilla Prof. Tadeo Mojica
The study entitled “Utilization of Coconut Sawdust and Rice Hull Ash in the Manufacture of Brick Tiles” was undertaken to utilize coconut sawdust and rice hull ash in the manufacture of brick tiles. It also aims to determine (a) the appropriate proportion of clay soil, coconut sawdust and rice hull ash in the manufacture of brick tiles; (b) which proportion will have the least setting shrinkage or volume change after drying and firing; (c) which brick tile will be the most durable in terms of breaking strength; and (d) the economic feasibility of the developed product. The study was conducted at Palahanan San Juan, Batangas and MSD-ITDI, Department of Science and Technology, Bicutan Taguig, M.M. from November 1998 to February 1999.
The proportions used in the study were, Treatment 0. 500 g clay soil; Treatment 1. 400 g clay soil and 100 g powdered coconut sawdust, Treatment 2. 400 g clay soil and 100 g rice hull ash; Treatment 3. 400 g clay soil, 50 g powdered coconut sawdust and 50 g rice hull ash; Treatment 4. 450 g clay soil and 50 g powdered coconut sawdust, Treatment 5. 450 g clay soil and 50 g rice hull ash: and Treatment 6. 450 g clay soil, 25 g powdered coconut sawdust and 25 g rice hull ash.
Highly significant results were obtained in the parameters such as mass and density of freshly molded, sun-dried and fired brick tiles; mass, density, mass changes and density changes for the fired brick tiles; and the Modulus of Rupture and production cost of each brick tiles produced. However, non-significant results were obtained from volume and volume changes of fired brick tiles.
The lowest drying shrinkage was observed in Treatment 6 composed of 90% clay soil, 5% coconut sawdust and 5% rice hull ash with a drying shrinkage of 30.48 cm’, Meanwhile, the lowest firing shrinkage was observed in Treatment 3 composed of 80% clay soil, 10% coconut sawdust and 10% rice hull ash with a firing shrinkage of 32.65 cm’.