<![CDATA[This study aims to analyze the correlation between specific gravity and compressive strength of conventional bricks and those mixed with acacia wood ash and carbide lime ash as environmentally friendly additives. The research program involved preparing brick specimens with a composition of 85% clay and 15% additive, combined with water contents of 20 ml, 25 ml, and 35 ml. The specimens were molded, air-dried for 7 and 14 days, and subsequently tested for specific gravity and compressive strength. The results indicate that bricks incorporating acacia wood ash exhibited the highest specific gravity and compressive strength compared to conventional bricks and bricks mixed with carbide welding ash. The maximum specific gravity of 5.967 g/cm³ and the highest compressive strength of 12.603 MPa were achieved by acacia ash bricks at 14 days of curing. A positive correlation was observed between specific gravity and compressive strength, indicating that increased density significantly enhances mechanical performance. A positive correlation between density and compressive strength suggests that higher density is associated with greater mechanical strength. This study demonstrates the potential of using acacia ash waste as a filler to enhance brick strength without requiring combustion. The application of acacia ash not only enhances mechanical properties but also reduces energy consumption and production time, supporting the development of sustainable and environmentally friendly brick manufacturing technologies.]]>
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