A river sand brick

A river sand brick is disclosed. The river sand brick is characterized in that raw materials include 40-80% of river sand, 10-30% of quick lime, 5-15% of cement, 5-15% of fly ash, and a reinforcing agent the amount of which is 0.6-1.2% of the amount of the cement; and the brick is manufactured by adding water into the raw materials, fully stirring the mixture and pressing the mixture through a brick manufacturing machine. The raw materials adopted include the river sand and industrial waste slag, and does not include soil so that vegetation is not destroyed. No sintering is adopted in production, thus saving a large amount of fuel and avoiding air pollution. A high amount of various types of waste slag is utilized, thus achieving a positive protection function on the city environment. Theproduction period is short, and the brick is low in cost and high in strength. 本发明是种河沙砖，其特征在于原料配方含：河沙40-80％，生石灰10-30％，水泥5-15％，粉煤灰5-15％，另加水泥量0.6-1.2％的强化剂，将上述原料加水搅拌均匀，经砖机压制成砖。本发明由于采用的原材料为河沙和工业废渣，不取土、不破坏植被，在生产过程中不烧结、节省大量的燃料，对大气不