Furthermore, it is not difficult to find a decreasing trend in the improvement effect of NCSH on the frost resistance of concrete when the dosing of NCSH is too large, perhaps because the excessive nucleation sites increase the number of inter-gel phase interfaces and the increase of inter-gel pores leads to a decrease in the strength of concrete [ 36 , 45 ], thus weakening the resistance to frost damage. 3.6.3.
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Effect of Nano-CSH and sodium sulfate on strength and durability of non-steam-curing high volume fly ash concrete.
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