To provide a technology that, in animal litter sand, contributes to effectively preventing scattering of particles without increasing the weight or density thereof in vain. In the animal litter sand containing particulate assembly, each particle is configured in a manner so as to contain: a particle substrate configured from an inorganic porous material a hydraulic solidification material and a water-soluble thickener.提供一種動物用便器砂的有用的技術,不會讓其重量或密度無意義地增大,可有效地防止各粒狀物飛散。本發明的動物用便器砂,是包含粒狀物的集合體,該粒狀物是各別包含:由無機多孔質材料所構成的粒狀基材、及水硬性的固化材、及水溶性的增黏劑。100‧‧‧動物用便器110‧‧‧動物用便器砂收納容器112‧‧‧底面部114‧‧‧空孔120‧‧‧吸液薄片收納容器130‧‧‧側面蓋140‧‧‧動物用便器砂150‧‧‧吸液薄片
