To improve weatherability and finishing of the surface by making aggregates omnipresent on the back surface side of the main body of a concrete wall body.

As lightweight aggregates 1 are omnipresent on the back surface 12 side of the main body 10 of a concrete wall body in a concrete wall body 100, mortar 2 is omnipresent on the surface 11 side as the result. As the surface 11 side of the main body 10 of the concrete wall body becomes dense caused by this omnipresence of the mortar 2 to decrease the room of presence of air bubbles, the surface 11 of the main body 10 of the concrete wall body can be made smooth and dense. As the surface 11a of a joint being an exposed part of the surface 11 of the main body 10 of the concrete wall body can be made smooth and dense thereby, it is possible to attempt to improve finishing appearance of the surface of the concrete wall body 100. In addition, as the surface 11a of the joint is smooth and dense, deterioration caused by open air, rain, etc., can be prevented from occurring.