the above slag was also conducted with the test results listed in the following table 2 table 2______________________________________results of test for eluting heavy metal components slag of the allowable invention standard ranges______________________________________mercury lt 0 001 0 005cadmium lt 0 03 0 30lead lt 0 05 3 00hexahydric chrome lt 0 6 1 50______________________________________ it is understood from the above table 2 that the amounts of the heavy metal components eluted from the slag material obtained in the above process are well below the allowable standard values in preparing the asphalt pavement material according to the present invention a preferred example is that said asphalt pavement material contains 5 6 by weight of an asphalt 35 40 by weight of the above slag material with the remaining being other kinds of aggregate materials coarse is 8 5 by weight fine sand is 8 5 by weight stone powder is 4 7 by weight crushed stone no 6 japanese industrial standard is 25 5 by weight crushed stone no 7 japanese industrial standard is 9 5 by weight further a kind of glass cullet may be used as one more aggregate material in the asphalt pavement material in such a case the glass cullet may be obtained by breaking waste glass materials in a shredding machine to form multi surface glass beeds having a diameter of about 10 mm in practice the above slag may be first mixed with the glass cullet a mixture obtained thereby is then mixed with the asphalt.