Abstract
About 700 000 m3 of pumpable concrete, which was produced by a high-range water-reducing admixture (HRWRA) and relatively low-strength cement, was used in the Xiao Lang Di water conservancy project. The concrete achieved a 28-day compressive strength as high as 90 MPa, a slump of 20 cm, and almost no slump loss in 2.5 h after mixing, as well as good freeze-thaw durability. The paper describes in detail the mix proportions, the method to control slump loss, and the related mechanical properties.
Issue Section:
Research Papers
References
1.
Feng
, N. Q.
, 1988
, Flowing Concrete
, Railway Publishing House of China
.2.
Feng
, N. Q.
, 1996
, Application Technology of Natural Zeolite Used in Concrete
, Railway Publishing House of China
.3.
Feng
, N. Q.
and Li
, G. Z.
, 1990
, “Carrier Fluidizing Agent for Controlling the Slump-loss of Concrete
,” Journal of the Chinese Ceramic Society
0454-5648.4.
Hattori
, K.
, et al, 1984
, “Slump Retention by Pebble-like Superplasticizer
,” Cement, Concrete
, No. 443
(in Japanese).
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