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The relationship between pore structure and durability of brick
The pore size distribution was determined on brick of good and bad durability. Brick of poor durability showed a preponderance of pores smaller than 1 micrometer while good brick exhibited a majority of pores larger than 2 micrometer. Raw material composition and forming method were found to have a major influence on pore size. Grog and shale particles larger than 200 mesh favored the formation of larger pores. Pure clays produced pores smaller than 0.1 micrometer. Soft molding produced larger pores than extrusion. Higher firing temperatures and increasing soaking times reduced the quantity of pores but not the predominant pore size in a span of normal firing temperatures. Poor durability was exhibited by brick of low porosity surface and high porosity interior.
The relationship between pore structure and durability of brick
The pore size distribution was determined on brick of good and bad durability. Brick of poor durability showed a preponderance of pores smaller than 1 micrometer while good brick exhibited a majority of pores larger than 2 micrometer. Raw material composition and forming method were found to have a major influence on pore size. Grog and shale particles larger than 200 mesh favored the formation of larger pores. Pure clays produced pores smaller than 0.1 micrometer. Soft molding produced larger pores than extrusion. Higher firing temperatures and increasing soaking times reduced the quantity of pores but not the predominant pore size in a span of normal firing temperatures. Poor durability was exhibited by brick of low porosity surface and high porosity interior.
The relationship between pore structure and durability of brick
Das Verhaeltnis zwischen der Porenstruktur und der Festigkeit von Ziegeln
Robinson, G.C. (author)
American Ceramic Society Bulletin ; 63 ; 295-300
1984
6 Seiten, 18 Bilder, 2 Tabellen
Article (Journal)
English
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