Fly Ash, Really Only Advantages? - The Issues and Discussion of Modern Concrete Science - page 113

Fig. 9.7 The floorslab of terminal buildings in an airport in north China

phenomenon as “ delay cracks. ” Sometimes, when the third floor is constructed,

cracks take place in the rst oor; thus, no remedy method can be used.

9.2.5 Floor in a Plant in Southwest China

The Fig. 9.8 shows the floor in a plant in southwest China. The concrete added by a

large amount of fly ash was used in the structure, and a large amount of y ash

floated on the surface of concrete led to decrease in the strength of surface concrete,