ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Mixtures of clays are often used in the manufacture of bricks. In industrial practice, it isdesirable to be able to predict, in an expeditious way, what the effects of a change in raw materialsor the proportions thereof might be in the various processing steps towards the final product. Whenthe property of interest is basically determined by the combination of raw materials, an optimisationmethodology specific to the design of mixture experiments can be successfully used. In the presentstudy, fired bending strength and linear firing shrinkage were selected as the properties to model.Ten formulations of three different clays were selected and used in the experiments design. Thoseformulations were wet processed, uniaxially pressed, and then fired at 1000 °C for 2 h.. From theexperimental results, regression models were calculated, relating each technological property withthe proportions of raw materials. The regression models were then used simultaneously to definewhich combination of those three raw materials was most adequate to produce, under constantprocessing conditions, a brick with specified properties
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/12/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.514-516.1424.pdf
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