A ballast block comprising: a body having: a top surface; a bottom surface positioned opposite the top surface; and a first side extending between the top surface and the bottom surface; and a second side extending widthwise substantially perpendicular to the top surface and the bottom surface, and positioned opposite the first side, with a substantially planar surface approximately parallel with a major surface side of the first side; and a plurality of fluid receiving channels disposed along the first side in a plurality of units and extending from the top surface to the bottom surface to form a zigzag pattern, each unit of the plurality of units having an adjacent pair of fluid receiving channels extending at opposing angles toward each other from the top surface to the bottom surface in an approximate V-shape, wherein each unit forms a V-shaped area between the adjacent pair of fluid receiving channels and includes an upper flat portion and a beveled lower portion, wherein the upper flat portion extends between a top surface end of each of the adjacent pair of fluid receiving channels, wherein the beveled lower portion extends inward from an approximate mid-point along a length of the adjacent pair of fluid receiving channels in each unit towards a bottom surface end thereof, characterised in that the beveled lower portion consists of an upper part and a lower part, wherein the upper part is arranged adjacent to the upper flat portion and is separated from the upper flat portion by a separation line being parallel to the top surface, and wherein the lower part is arranged adjacent to the bottom surface end of the adjacent pair of fluid receiving channels, wherein the upper part is inclined with respect to said upper flat portion and said lower part in such a way that said upper part extends backwardly from said upper flat portion to said lower part, and wherein the upper part and the lower part are separated from each other by a rounded part so that said upper part has a shape similar to a circular segment. a top surface; a bottom surface positioned opposite the top surface; and a first side extending between the top surface and the bottom surface; and a second side extending widthwise substantially perpendicular to the top surface and the bottom surface, and positioned opposite the first side, with a substantially planar surface approximately parallel with a major surface side of the first side; and a plurality of fluid receiving channels disposed along the first side in a plurality of units and extending from the top surface to the bottom surface to form a zigzag pattern, each unit of the plurality of units having an adjacent pair of fluid receiving channels extending at opposing angles toward each other from the top surface to the bottom surface in an approximate V-shape, wherein each unit forms a V-shaped area between the adjacent pair of fluid receiving channels and includes an upper flat portion and a beveled lower portion, wherein the upper flat portion extends between a top surface end of each of the adjacent pair of fluid receiving channels, wherein the beveled lower portion extends inward from an approximate mid-point along a length of the adjacent pair of fluid receiving channels in each unit towards a bottom surface end thereof, characterised in that the beveled lower portion consists of an upper part and a lower part, wherein the upper part is arranged adjacent to the upper flat portion and is separated from the upper flat portion by a separation line being parallel to the top surface, and wherein the lower part is arranged adjacent to the bottom surface end of the adjacent pair of fluid receiving channels, wherein the upper part is inclined with respect to said upper flat portion and said lower part in such a way that said upper part extends backwardly from said upper flat portion to said lower part, and wherein the upper part and the lower part are separated from each other by a rounded part so that said upper part has a shape similar to a circular segment.