Author:Netterberg, F; Paige-Green, PDate:Apr 1984The 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
Author:Masindi, Vhahangwele; Osman, Muhammad S; Abu-Mahfouz, Adnan MIDate:Dec 2017Acid mine drainage has been an issue of prime concern to international scientific communities. This is due to the magnitude, nature and extent of its environmental impacts. Acid mine drainage (AMD) contains hazardous and toxic chemical species ...Read more
Author:De Beer, Morris; Mathews, EH; Krueger, D; Maree, J; Mbhele, FN; Phalanndwa, M; Novhe, NODate:Mar 2008Traditionally acid mine water is neutralised with lime. Limestone is a cheaper alternative for such applications. A case study showed that limestone can be used effectively to replace lime for the neutralization of arsenic rich acid water. ...Read more
Author:Maree, JP; Du Plessis, PDate:1994Traditionally, Lime is used for the neutralization of acidic effluents. Calcium carbonate should be considered as an alternative because of considerations such as lower cost, low solubility at pH values greater than 7 and simple dosing system ...Read more
Author:Botha, PB; Semmelink, CJ; Raubenheimer, JDate:Oct 2005Stabilized layers are used extensively in South-Africa in the construction of roads. The layers are usually stabilized with hydrated road lime, cement, slag, fly-ash, bitumen emulsion, foamed asphalt or a combination of several of these agents. ...Read more
Author:Paige-Green, PDate:Nov 2009During the early 1980s a number of problems related to the loss of stabilization and disintegration of stabilized layers in roads (lime and cement) were reported in South Africa. This led to many comprehensive investigations and it was shown ...Read more
Author:Masindi, VhahangweleDate:Aug 2017In this study, the possibility of recovering valuable minerals and drinking water from acid mine drainage was explored. Neutralisation of Acid Mine Drainage (AMD) and recovery of metals were done at 60 mins of equilibration. DOW water & Process ...Read more