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Some factors affecting early compressive strength of steam-curing concrete with ultrafine fly ash
Hardening process and strength gaining rate of concrete under room temperature curing conditions are slow with respect to the production rate of concrete plants in response to demand. In order to reach a desired strength level for concrete in a short time, heat treatment is widely used. When fly ash is included in concrete and the raw materials were selected, the factors affecting early compressive strength are water-binder ratio, fly ash content, etc. In this context, heat-treatment parameters, which are commonly adopted by most plants in China, were determined, and some factors affecting early compressive strength of steam-curing ultrafine fly ash (UFA) concrete were studied. The experimental results indicated that the content of UFA and water-binder ratio are main factors influencing the early compressive strength; the other factors have influence, too. Concrete containing ultrafine fly ash composite (UFAC) and ground blast furnace slag (GBFS) can give a desired early compressive strength.
Some factors affecting early compressive strength of steam-curing concrete with ultrafine fly ash
Hardening process and strength gaining rate of concrete under room temperature curing conditions are slow with respect to the production rate of concrete plants in response to demand. In order to reach a desired strength level for concrete in a short time, heat treatment is widely used. When fly ash is included in concrete and the raw materials were selected, the factors affecting early compressive strength are water-binder ratio, fly ash content, etc. In this context, heat-treatment parameters, which are commonly adopted by most plants in China, were determined, and some factors affecting early compressive strength of steam-curing ultrafine fly ash (UFA) concrete were studied. The experimental results indicated that the content of UFA and water-binder ratio are main factors influencing the early compressive strength; the other factors have influence, too. Concrete containing ultrafine fly ash composite (UFAC) and ground blast furnace slag (GBFS) can give a desired early compressive strength.
Some factors affecting early compressive strength of steam-curing concrete with ultrafine fly ash
Liu, Baoju (author) / Xie, Youjun (author) / Zhou, Shiqiong (author) / Li, Jian (author)
Cement and Concrete Research ; 31 ; 1455-1458
2001
4 Seiten, 6 Quellen
Article (Journal)
English
Some factors affecting early compressive strength of steam-curing concrete with ultrafine fly ash
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