sludge powder of recycled water of ready mixed concrete a manufacturing method thereof and asphalt concrete composite for surface layer

摘要

In the present invention, " Sludge in remicon reclaimed water is separated, dried and pulverized. The sludge having a nominal diameter of 0.6 mm passes through 100 wt%, the sludge having a nominal diameter of 0.08 mm has a particle size of 70 wt%₂10 to 40 wt%, Al₂O₃3 to 15 wt%, Fe₂O₃2 to 3 wt%, CaO 25 to 50 wt%, MgO 1 to 3 wt%, and SO₃1 to 5% by weight of the remicon recovered sludge powder "and" (a) separating the sludge in the ready-mixed recovered water; (B) drying the separated sludge; And (c) pulverizing the dried sludge so that the sludge having a nominal diameter of 0.6 mm passes through the sludge of 100 wt% and the sludge having a nominal size of 0.08 mm has a particle size of 70 wt% or more to pass therethrough. The aggregate having a particle size of 25 mm or less, the ready-mixed recovered water sludge powder and the asphalt, wherein the ready-mixed recovered water sludge powder is mixed with 1 to 8 parts by weight based on 100 parts by weight of the aggregate, And 3 to 10 parts by weight based on 100 parts by weight of the aggregate are mixed.;