Black RHA comes from pyrolysis of rice husk in poor-Oxygen environment. The difference between Black RHA and White RHA is the carbon content, which much higher in Black RHA. The applications of RHA include: Soil Stabilization As a Pozzolan Material in the construction industry, as a filler, additive, abrasive agent, oil adsorbent, sweeping component, and as a suspension agent for porcelain enamels. In the construction industry, RHA can be used as a partial replacement for cement. Modification material for bitumens.
