Cement-bonded composite boards with arhar stalks

摘要: Abstract A study was carried out to explore the possibility of making cement-bonded composite building products using arhar stalks. The water extractive stalks is slightly acidic, pH value around 6.5. It found that adversely affect cement hydration and strength development processes. increase in setting time varied from 25 130% when content 0.5 2% by weight cement. 28-day compressive reduced 13 20% at 1–2% concentration powder. Further, studies showed these effects could be overcome adopting suitable measures like cold extraction and/or use an accelerator. dose calcium chloride, cement, offset effect 1% extractive. bonded composites were prepared varying flakes 0 32%, weight, flakes–cement mix a casting pressure 3 MPa demoulding up 10 h. results with bending >9.0 MPa internal bond >0.6 MPa made as reinforcing material. properties stalks–cement satisfy minimum requirements International Standard, ISO:8335-1987.