0102030405
Why Controlling Low Forming Moisture Improves Brick Strength and Drying Quality？
2026-08-03
Many brick factories blindly increase green brick forming moisture to simplify the brick molding process, but this improper production operation brings huge hidden dangers to subsequent brick drying processing and finished brick quality. Although high forming moisture can make brick molding smoother and easier, it significantly increases brick drying difficulty and drying shrinkage. Meanwhile, excessive forming moisture greatly raises the probability of drying cracks, reduces green brick compactness and structural strength, and causes serious brick damage during kiln loading and transportation, directly lowering the overall brick production yield.
Long-term industrial brick production practice has fully verified the core value of scientific low forming moisture control. For lean brick-making raw materials, reducing green brick forming moisture by 2 percentage points can double the overall green brick strength. For high-plasticity fat raw materials commonly used in brick production, reducing moisture content by 4 to 6 percentage points will also achieve a double improvement in green brick structural strength. High-strength green bricks can effectively resist mechanical damage in subsequent processing procedures, greatly improving the final qualification rate of finished bricks.
Professional and scientific brick drying follows four complete standardized stages: heating stage, constant-speed drying stage, falling-speed drying stage and balance drying stage. Each drying stage has independent and fixed temperature, dehydration and pressure curves, which require uniform and stable moisture distribution inside green bricks. Excessively high forming moisture will completely disrupt the standard four-stage brick drying rhythm, cause unbalanced internal and external dehydration of green bricks, destroy the orderly heat and mass transfer effect of the drying process, and finally lead to unstable brick drying quality and frequent defective brick products.
Therefore, under the allowable capacity of professional brick-making equipment, minimizing green brick forming moisture is a completely profitable and risk-free brick production strategy. This operation can effectively shorten brick drying time, reduce coal and air energy consumption, and eliminate brick crack and damage risks. More importantly, low and uniform green brick moisture enables wet bricks to complete standardized heating, uniform dehydration and balance curing step by step in the drying room. Our integrated brick production line is equipped with a precise intelligent moisture control system, which perfectly matches the four-stage brick drying principle to realize full-process, high-efficiency and high-yield brick manufacturing.