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Resistance of mortars containing silica fume to attack by a solution containing chlorides
AbstractMortars prepared at water/cement + silica fume ratios, w/ (c+sf), of 0.45 and 0.60 were exposed to a solution containing a mixture of Mg-, Ca- and Na- chlorides to investigate their resistance to attack. Mixes contained 0, 10 and 30% silica fume, and sand-binder ratio was 2.25. Stiffness, pore-size distribution, Ca(OH)2 content and non-evaporable water were measured before and after exposure to salt solution. Inclusion of silica fume resulted in increased durability of mortar, especially in specimens prepared at w/ (c+sf) of 0.45 and cured for 28 days. Specimens prepared at the same w/ (c+sf) with 30% silica fume were also durable even after seven days of curing. Calcium hydroxide in mortars was reduced to zero by exposure to the salt solution.
Resistance of mortars containing silica fume to attack by a solution containing chlorides
AbstractMortars prepared at water/cement + silica fume ratios, w/ (c+sf), of 0.45 and 0.60 were exposed to a solution containing a mixture of Mg-, Ca- and Na- chlorides to investigate their resistance to attack. Mixes contained 0, 10 and 30% silica fume, and sand-binder ratio was 2.25. Stiffness, pore-size distribution, Ca(OH)2 content and non-evaporable water were measured before and after exposure to salt solution. Inclusion of silica fume resulted in increased durability of mortar, especially in specimens prepared at w/ (c+sf) of 0.45 and cured for 28 days. Specimens prepared at the same w/ (c+sf) with 30% silica fume were also durable even after seven days of curing. Calcium hydroxide in mortars was reduced to zero by exposure to the salt solution.
Resistance of mortars containing silica fume to attack by a solution containing chlorides
Feldman, R.F. (author) / Cheng-Yi, Huang (author)
Cement and Concrete Research ; 15 ; 411-420
1984-09-12
10 pages
Article (Journal)
Electronic Resource
English
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