The phrase "ash decreases" is correct and usable in written English.
It can be used in contexts discussing the reduction of ash, such as in environmental science, cooking, or waste management.
Example: "As the fire burns down, the amount of ash decreases significantly."
Alternatives: "ash diminishes" or "ash reduces".
It was also found that the bond strength significantly increased as the mean particle size of fly ash decreases after 28 days curing.
Replacement of OPC with volcanic ash decreases the EEC, however the mix design must be engineered considering the volcanic ash composition to maintain the optimum mechanical strength.
The results show that when the ball milling time increases, the particle size of fly ash decreases and the distribution becomes narrow.
It is known that a thermal activation temperature ranging from 20 °C to 950 °C significantly increases the flowability and pozzolanic properties of the coal refuse; however, the flowability of fly ash decreases when the activation temperature is higher than 550 °C because of a severe agglomeration phenomenon on its surface.
However, the reaction rate of fly ash decreases quickly during the subsequent period.
The integrated model study reveals that the reaction order of ZD char is about 0.74, whereas the reaction order of fly ash decreases from 1 to 0.59 when temperature increases from 900 to 1050 °C.
The increasing replacement ratio of fly ash decreased Ca(OH 2.
The recoveries of Zn, Pb, and Cd in bottom ash decreased with increasing incineration temperature but increased in fly ash.
However, subsequent to NH3-H2O2 pretreandent and washing the solid fraction exhibited a 19.54% increase in cellulosic composition and the percentage of hemicellulose, lignin, and ash decreased slightly compared to raw material prior to pretreatment (Table 1).
The significance of the process is in fact that a part of sulfur may be retained in ash, decreasing emission of sulfur oxides.
Besides, although the presence of fly ash decreased the chloride threshold level, it delayed the time to initiation of reinforcement corrosion.
