Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2006 | Volume: 6 | Issue: 6 | Page No.: 1322-1326
DOI: 10.3923/jas.2006.1322.1326
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Use of Sunflower Stalk and Pumice in Gypsum Composites to Improve Thermal Properties

Sedat Karaman, Sirri Sahin , Hikmet Gunal , Ibrahim Orung and Sabit Ersahin

Abstract:
The objectives of this study were to utilize sunflower stalks and grinded pumice as components of composite materials and to evaluate mechanical and physical properties of composite materials composed of sunflower stalk and sunflower stalk plus grinded pumice. The experiment was conducted in two stages. In the first stage, varying rates of sunflower stalks were mixed with gypsum and in the second stage, varying rates of sunflower stalk and pumice were mixed with gypsum. Increasing the ratio of sunflower stalk added in gypsum gradually decreased the unit weight and increased thermal insulation capacity that could be described by a linear regression equation (R2 = 0.89 and R2 = 0.81). However, mechanical and bending resistances decreased and water absorption capacity increased that could be described by a second degree polynomial regression equation in the former case and linear regression equation in the later case (R2 = 0.94, R2 = 0.85 and R2 = 0.84). When used together with pumice, increasing rates of sunflower stalk affected thermal and physical properties of the final product differently compared to when used alone. Low unit weight and good heat insulation feature favored the use of final products.
PDF Fulltext XML References Citation Report Citation
How to cite this article:

Sedat Karaman, Sirri Sahin , Hikmet Gunal , Ibrahim Orung and Sabit Ersahin , 2006. Use of Sunflower Stalk and Pumice in Gypsum Composites to Improve Thermal Properties. Journal of Applied Sciences, 6: 1322-1326.

DOI: 10.3923/jas.2006.1322.1326

URL: https://scialert.net/abstract/?doi=jas.2006.1322.1326

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

Curve Bottom