PROBLEM TO BE SOLVED: To provide an easy method for producing granulated artificial soil improved in hardness when effectively reusing end materials, powder produced during surface-finishing treatment, waste materials and the like produced when forming a calcium silicate board, as granulated artificial soil or a fertilizer.SOLUTION: The method for producing granulated artificial soil comprises: crushing a calcium silicate-based building-material composition produced by adding reinforcing fibers to a calcium silicate-based base material, or classifying the composition after crushed adjusting the length of the reinforcing fibers in the crushed material so as to substantially become 10 mm or less and granulating the crushed material to obtain granulated artificial soil.COPYRIGHT: (C)2010,JPO&INPIT【課題】けい酸カルシウム板の成形の際の端材、表面仕上げ加工時の粉体、または廃材等、を造粒人工土壌、肥料として有効に再利用する際に、簡易な方法で硬度を向上させ得る方法を提供する。【解決手段】けい酸カルシウム系基材に補強繊維を配合してなるけい酸カルシウム系建材用組成物を粉砕して、または粉砕した後に分級して、粉砕物中の補強繊維の長さが実質的に10mm以下となるように調整し、ついでこの粉砕物を造粒することにより造粒人工土壌を得ることを特徴とするけい酸カルシウム系の造粒人工土壌の製造方法。【選択図】なし
