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Influence of admixtures on the properties of phosphorous slag cement

Li, Dongxu / Shen, Jinlin / Mao, Liangxi / Wu, Xuequan

In China, a lot of phosphorous slag has not been used. The main reason is that phosphorous slag (PHS) lengthens the setting time of cement. At the same time, the early strength obviously decreases the setting time. Consequently, it can affect the engineering construction progress. Therefore, addition of admixtures can resolve these questions and improve the properties of PHS cement. The paper studied the influence of calcined gypsum, calcined alumstone, sodium sulphate on the strength and pore structure of PHS cement. Results show that PHS cement of 425 or 515 grade can be produced by adjusting technological parameters and using complex admixtures.

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Influence of admixtures on the properties of phosphorous slag cement

Li, Dongxu / Shen, Jinlin / Mao, Liangxi / Wu, Xuequan

In China, a lot of phosphorous slag has not been used. The main reason is that phosphorous slag (PHS) lengthens the setting time of cement. At the same time, the early strength obviously decreases the setting time. Consequently, it can affect the engineering construction progress. Therefore, addition of admixtures can resolve these questions and improve the properties of PHS cement. The paper studied the influence of calcined gypsum, calcined alumstone, sodium sulphate on the strength and pore structure of PHS cement. Results show that PHS cement of 425 or 515 grade can be produced by adjusting technological parameters and using complex admixtures.

Influence of admixtures on the properties of phosphorous slag cement

Li, Dongxu / Shen, Jinlin / Mao, Liangxi / Wu, Xuequan

In China, a lot of phosphorous slag has not been used. The main reason is that phosphorous slag (PHS) lengthens the setting time of cement. At the same time, the early strength obviously decreases the setting time. Consequently, it can affect the engineering construction progress. Therefore, addition of admixtures can resolve these questions and improve the properties of PHS cement. The paper studied the influence of calcined gypsum, calcined alumstone, sodium sulphate on the strength and pore structure of PHS cement. Results show that PHS cement of 425 or 515 grade can be produced by adjusting technological parameters and using complex admixtures.

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Title:

Influence of admixtures on the properties of phosphorous slag cement

Contributors:

Li, Dongxu (author) / Shen, Jinlin (author) / Mao, Liangxi (author) / Wu, Xuequan (author)

Published in:

Cement and Concrete Research ; 30 ; 1169-1173

Publication date:

2000

Size:

5 Seiten, 7 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0008-8846(00)00291-X

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Phosphor , Konzentrationseinfluss , Gips , Natriumverbindung , Calcinieren , Porosität , mechanische Festigkeit , Additiv , Natriumsulfat , China

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