PAVEMENT STRUCTURE AND PAVEMENT CONSTRUCTION METHOD

PROBLEM TO BE SOLVED: To provide a technique for forming a pavement structure which has excellent water permeability and water holding ability and hardly causes decoloration of a pavement surface after construction.SOLUTION: A pavement structure 19 comprises a pavement layer 18 obtained by directly or indirectly installing and solidifying on a foundation 17 a kneaded object 16 which is formed by agitating and mixing a colored decomposed granite soil 12 formed by heating a mixture of decomposed granite soil and a pigment, a cement or magnesium solidification material 14, a nodulizing agent 15 and water 13 in a mixing device 200. The pavement layer 18 composing the pavement structure 19 has a three-dimentional network structure inside, and because of the countless continuous voids in the three-dimentional network structure enabling moisture to be absorbed or permeate efficiently, the pavement layer 18 exhibits excellent water permeability and water holding ability. The colored decomposed granite soil 12 hardly causes decoloration of a pavement surface after construction because a pigment 11 is fastened to the surface of particles of decomposed granite soil 10 firmly.