Production method of river sand brick

The invention discloses a production method of a river sand brick. The production method is characterized by including the steps of 1), uniformly stirring, by weight, 40-80% of river sand, 10-30% of quicklime, 5-10% of cement, 5-15% of coal ash and an enhancer 0.6-1.2% that of the cement by adding appropriate water, wherein the water addition is subjected to the situation that materials are kneaded into dough which is scattered upon falling to the ground, and the stirring time is no less then one minute; 2), sending the mixture into a brick making machine to product the brick, wherein the pressing pressure is 180T/m2; 3), molding, namely sending the formed brick into a shed for molding, wherein the brick is ensured not to be sprayed with water within 6-10 hours, after that, the brick is sprayed with water thoroughly every 3 hours, the humidity in the shed is 5-10 degrees, the temperature ranges from 20DEG C to 35DEG C, good ventilation is needed, and the molding period is about 7 days.The raw materials adopte