| abstract |
[Problem] To provide a building material having excellent durability. A building material having a convex portion having a first side surface portion and a second side surface portion corresponding to the first side surface portion. The building material is made of a mixture containing a hydraulic material, an admixture, and a plant-based reinforcing material, and at least the plant-based reinforcing material in the convex portion is distributed in the mixture in a state where the hydraulic material and the admixture adhere. The distribution of the plant-based reinforcing material in the first side surface portion and the distribution of the plant-based reinforcing material in the second side surface portion are substantially the same. Preferably, the projection has a first edge which is an edge of the first side surface and a second edge which is an edge of the second side surface and corresponds to the first edge, The distribution of the burrows formed at one edge and the distribution of the burrows formed at the second edge are substantially the same. [Selected figure] Figure 5 |