When we use basalt stone at the construction site,we will find that the impact of stone on moisture content is different before and after use.Next,let's understand the specific moisture content during use.
When we use it,we can find that the water absorption rate of all specifications of Xuan Shi stone is greater than 3%,and the smaller the particle size,the greater the water absorption rate.
Before drying,the moisture content of the stone increases as the particle size decreases.From the table,it can be seen that the moisture content of the pre dried sample is greater than the corresponding water absorption rate,which was determined according to standard methods.However,the sample taken to measure the corresponding natural moisture content before drying contains a portion of free water.
The average moisture content of secondary drying is only 16.4~21.9%of that of primary drying materials,which is approximately 16.4~21.9%.Obviously,using secondary drying stones is better than using primary drying stones.However,both in terms of yard and production time,using the secondary drying process is much more difficult,so it can only be determined through indoor testing and trial mixing and paving to determine which method to use.
Although the smaller the particle size of the stone,the larger the moisture content before drying and the smaller the particle size.After one or two drying,the residual moisture content after drying is smaller because the smaller the particle size and the larger the specific surface area,the higher the water absorption or evaporation rate.
The above is a comparison of the moisture content of dried basalt stone before and during use.Based on the above content,we know that the moisture content will not affect our normal use,so users can use it with confidence.