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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
Integrated treatment of acid mine drainage using BOF slag, lime/soda ash and reverse osmosis (RO): Implication for the production of drinking water

Author: Masindi, Vhahangwele ; Osman, Muhammad S ; Abu-Mahfouz, Adnan MI Date: Dec 2017 Acid 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
Limestone neutralisation of arsenic-rich effluent from a gold mine

Author: De Beer, Morris ; Mathews, EH ; Krueger, D ; Maree, J ; Mbhele, FN ; Phalanndwa, M ; Novhe, NO Date: Mar 2008 Traditionally 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
Neutralization of acid-mine water with calcium-carbonate

Author: Maree, JP ; Du Plessis, P Date: 1994 Traditionally, 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
Problems experiences with the construction of cement and lime stabilized layers and working solutions for these problems

Author: Botha, PB ; Semmelink, CJ ; Raubenheimer, J Date: Oct 2005 Stabilized 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
Reassessment of problems affecting stabilized layers in roads in South Africa

Author: Paige-Green, P Date: Nov 2009 During 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
Recovery of drinking water and valuable minerals from acid mine drainage using an integration of magnesite, lime, soda ash, CO(sub)2 and reverse osmosis treatment processes

Author: Masindi, Vhahangwele Date: Aug 2017 In 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

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Browsing by Subject "Lime"

Browsing by Subject "Lime"

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