Try P300 by the SCI. / MCRMA Technical paper no. 13. (Same book, different publishers)
Page 80 of the above suggest's "Typical pour sizes are up to 1000m2 / day, although there is no technical limitation to the area that may be concreted. Where the limits of the pour do not conicide with permanent slab edges, construction (day joints) are used to define the extent of the pour."
It goes on to suggest that day joints should be over a support position and a butt joint. If this is not possible then no more than 1/3 of a deck span should be left un poured.
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