Production of 'green' concrete using red gypsum and waste

摘要: The main cost incurred in the production of concrete paving blocks is cement-based binders. In addition, there environmental quarrying and processing these primary materials. Gypsum-based industrial by-products have been identified as alternative sources cement. These materials little or no their reuse negates need for disposal, offering a more sustainable material blocks. Laboratory trials investigated properties red gypsum, derived coproduct associated with titanium dioxide manufacture, mixed pulverised-fuel ash, ground granulated blastfurnace slag, lime basic steel slag. An assessment samples was made using unconfined compressive strength after 28 days curing. It found that gypsum slag mix achieved highest (up to 39 MPa) selected further investigation. Two binders, composed primarily gy...