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Browsing by Subject "Carbonation"

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Carbonation of lime and cement stabilized layers in road construction

Author: Netterberg, F ; Paige-Green, P Date: Apr 1984 The problem of deterioration of lime, lime-slag and cement stabilized pavement layers during curing, before sealing and in service is partly ascribed to carbonation of the stabilizer during curing and subsequent exposure to the atmosphere ... Read more
Conversion of calcium sulphide to calcium carbonate during the process of recovery of elemental sulphur from gypsum waste

Author: De Beer, Morris ; Maree, JP ; Liebenberg, L ; Doucet, FJ Date: Nov 2014 The production of elemental sulphur and calcium carbonate (CaCO(sub3)) from gypsum waste can be achieved by thermally reducing the waste into calcium sulphide (CaS), which is then subjected to a direct aqueous carbonation step for the generation ... Read more
Laboratory study to investigate the development of stiffness in stabilized materials

Author: Paige-Green, P ; Leyland, R ; Maharaj, A Date: Aug 2010 The development of stiffness of stabilized materials with time is critical to the construction process, particularly in the case of recycling, where traffic is often required to return to the recycled road soon after construction. However, ... Read more
Recovery of calcium carbonate from steelmaking slag and utilization for acid mine drainage pre-treatment

Author: Mulopo, J ; Mashego, M ; Zvimba, JN Date: Jun 2012 The conversion of steelmaking slag (a waste product of the steelmaking process) to calcium carbonate (CaCO3) was tested using hydrochloric acid, ammonium hydroxide and carbon dioxide via a pH-swing process. Batch reactors were used to assess ... Read more
Regeneration of barium carbonate from barium sulphide in a pilot-scale bubbling column reactor and utilization for acid mine drainage

Author: Mulopo, J ; Zvimba, JN ; Swanepoel, H ; Bologo, LT ; Maree, J Date: Jan 2012 Batch regeneration of barium carbonate (BaCO3) from barium sulphide (BaS) slurries by passing CO2 gas into a pilot-scale bubbling column reactor under ambient conditions was used to assess the technical feasibility of BaCO3 recovery in the ... Read more

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Browsing by Subject "Carbonation"

Browsing by Subject "Carbonation"

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