It is forbidden to mix mortar on site. In 2007, six ministries and commissions issued notices. It is this document that gave birth to ready-mixed mortar enterprises. It is inevitable that the price will be high. Equipment investment in mortar production and energy consumption in sand drying need someone to pay the bill!
However, the use of ready-mixed mortar is generally good, and the building mortar has been strictly scientifically mixed, which improves the building quality; Sand and gravel are not mixed at the site, which reduces dust pollution and noise pollution and improves the quality of life of nearby residents; Various "three wastes" products are used in the production of ready-mixed mortar to save cement and resources in disguise; The use of ready-mixed mortar does not need to screen sand on site and then pull cement, which reduces the labor intensity of workers!