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Improvement of Concrete Durability by Composite Cement

Feng, Nai Qian / Niu, Quan Lin / Li, Chong Zhi

Mineral powders play positive role in improving the durability of concrete subjected to alkaline and saline corrosion, where sulphate ion and chloride ion coexisted may cause serious deterioration to the reinforced concrete structures. Metakaolin, slag, fly ash and natural zeolite mixed in appropriate proportion were tested in inhibiting the deterioration. It is found that the composite powder might decreased AAR and the charge passed of concrete effectively，the while the 7d and 28d strength of cement and concrete are improved as well.

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Improvement of Concrete Durability by Composite Cement

Feng, Nai Qian / Niu, Quan Lin / Li, Chong Zhi

Mineral powders play positive role in improving the durability of concrete subjected to alkaline and saline corrosion, where sulphate ion and chloride ion coexisted may cause serious deterioration to the reinforced concrete structures. Metakaolin, slag, fly ash and natural zeolite mixed in appropriate proportion were tested in inhibiting the deterioration. It is found that the composite powder might decreased AAR and the charge passed of concrete effectively，the while the 7d and 28d strength of cement and concrete are improved as well.

Improvement of Concrete Durability by Composite Cement

Feng, Nai Qian / Niu, Quan Lin / Li, Chong Zhi

Mineral powders play positive role in improving the durability of concrete subjected to alkaline and saline corrosion, where sulphate ion and chloride ion coexisted may cause serious deterioration to the reinforced concrete structures. Metakaolin, slag, fly ash and natural zeolite mixed in appropriate proportion were tested in inhibiting the deterioration. It is found that the composite powder might decreased AAR and the charge passed of concrete effectively，the while the 7d and 28d strength of cement and concrete are improved as well.

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Title:

Improvement of Concrete Durability by Composite Cement

Contributors:

Feng, Nai Qian / Niu, Quan Lin / Li, Chong Zhi

Published in:

Key Engineering Materials ; 405-406 ; 14-18

Publication date:

2009-01-13

Size:

5 pages

ISSN:

1662-9795 , 1013-9826

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.405-406.14

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Durability , Mineral Powder , Alkaline Saline Soils , Charge Passed , Alkali-Aggregate Reaction (AAR)

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