A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Aggregate reaction with cement alkalies
Test specimens composed of high alkali cement and reactive aggregate (opal) were exposed to conditions promoting cracking and expansion; petrographic examination indicates that chemical reaction results in liquefaction, swelling and migration of reaction products; liquefied gel fills pores; reaction at pore wall forms membrane through which osmosis takes place thus causing expansion and cracking. (See also - discussion v 20 n 4 pt 2 Dec p 632 (6 p))
Aggregate reaction with cement alkalies
Test specimens composed of high alkali cement and reactive aggregate (opal) were exposed to conditions promoting cracking and expansion; petrographic examination indicates that chemical reaction results in liquefaction, swelling and migration of reaction products; liquefied gel fills pores; reaction at pore wall forms membrane through which osmosis takes place thus causing expansion and cracking. (See also - discussion v 20 n 4 pt 2 Dec p 632 (6 p))
Aggregate reaction with cement alkalies
Am Concrete Inst -- J
Parsons, W.H. (author) / Insley, H. (author)
1948
8 pages
Bibliography
Article (Journal)
English
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Determination of alkalies in Portland cement
| Engineering Index Backfile | 1950
| Elsevier | 1977
Determination of alkalies in Portland cement
| Engineering Index Backfile | 1950