Page 83 - Masonry and Concrete
P. 83
Concrete Construction Techniques
82 CHAPTER THREE
In flash set, lumps of dry cement are surrounded by a layer of damp
or partially hydrated cement, or solid lumps of partially hydrated
cement are formed. Flash set is caused by the use of hot-mixing water
in cold weather. To avoid this problem, change the batching sequence
so that the hot water and aggregates are put in the mixer first and the
cement is added after the water has cooled slightly.
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