Abstract: In one aspect there is provided a construct, mound, layer or brick which offers utility as an erosion control medium formed primarily from a blend of biomass, cementitious binder and water. In another aspect there is provided a construct, mound, layer or brick, which offers utility as a construction medium. Also provided are processes by which an aggregate of woody biomass (a blend of chips, particles and pieces), and a cementitious binder slurry can be applied by manual methods or spray applied by mechanical means. Upon drying the biomass construct conforms and binds to a ground surface providing a hard porous medium capable of adhering to a large variety of ground surfaces and to terrain of varied slope, pitch and constitution.