Alice Lungu - Academia.edu (original) (raw)
I am a self-motivated, hard working and dedicated person. I am never discouraged by challenges but use them to create opportunities.
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Papers by Alice Lungu
Geological Society, London, Special Publications, 2005
This paper reviews recent developments aimed at improving the mining sector’s contribution to sus... more This paper reviews recent developments aimed at improving the mining sector’s contribution to sustainable development. Mineral endowments are regarded by many development and environmental non-governmental organizations (NGOs), as a ‘curse’ and counterproductive to long-term growth and poverty reduction goals, even antithetical to sustainable development in developing countries. This paper argues that, in spite of some empirical evidence in some countries, this is not an inevitable general rule and that the mining sector offers numerous possibilities for catalysing sustainable development and attainment of the millennium development goals. This is, however, conditional upon adequate governance and social and environmental safeguards being in place. The heterogeneity of the mining sector is considered and concern is expressed for the undermanagement of the growing, albeit not new, phenomenon of artisanal and small-scale mining in developing countries. Without better management of thi...
Engineering Management in Production and Services
Cement is an important construction material in concrete production; however, it is expensive and... more Cement is an important construction material in concrete production; however, it is expensive and unaffordable for many low-income and rural communities in developing countries. Rice husk is a by-product from the rice mill process, with an approximate ratio of 200 kg rice husk per one tonne of rice produced. This experimental study aimed to investigate the integrity of concrete produced in Zambia using rice husk ash (RHA) to partially replace cement. The primary goal was to carry out a cost–benefit analysis on the use of RHA in concrete. RHA was used to partially replace cement with ratios of 10 %, 20 % and 30 %. The 20 % cement replacement mix produced the optimum 18 MPa concrete strength results at a 0.5 water/binder ratio. This translated in cost reduction of concrete by 12.5 %, which is particularly significant for higher concrete volumes. The produced concrete is suitable for lightly loaded structures, such as foundation footings, surface beds and walkways to benefit low-income...
The copyright in this thesis is owned by the author. Any quotation from the thesis or use of any ... more The copyright in this thesis is owned by the author. Any quotation from the thesis or use of any of the information contained in it must acknowledge this thesis as the source of the quotation or information.
Geological Society, London, Special Publications, 2005
This paper reviews recent developments aimed at improving the mining sector’s contribution to sus... more This paper reviews recent developments aimed at improving the mining sector’s contribution to sustainable development. Mineral endowments are regarded by many development and environmental non-governmental organizations (NGOs), as a ‘curse’ and counterproductive to long-term growth and poverty reduction goals, even antithetical to sustainable development in developing countries. This paper argues that, in spite of some empirical evidence in some countries, this is not an inevitable general rule and that the mining sector offers numerous possibilities for catalysing sustainable development and attainment of the millennium development goals. This is, however, conditional upon adequate governance and social and environmental safeguards being in place. The heterogeneity of the mining sector is considered and concern is expressed for the undermanagement of the growing, albeit not new, phenomenon of artisanal and small-scale mining in developing countries. Without better management of thi...
Engineering Management in Production and Services
Cement is an important construction material in concrete production; however, it is expensive and... more Cement is an important construction material in concrete production; however, it is expensive and unaffordable for many low-income and rural communities in developing countries. Rice husk is a by-product from the rice mill process, with an approximate ratio of 200 kg rice husk per one tonne of rice produced. This experimental study aimed to investigate the integrity of concrete produced in Zambia using rice husk ash (RHA) to partially replace cement. The primary goal was to carry out a cost–benefit analysis on the use of RHA in concrete. RHA was used to partially replace cement with ratios of 10 %, 20 % and 30 %. The 20 % cement replacement mix produced the optimum 18 MPa concrete strength results at a 0.5 water/binder ratio. This translated in cost reduction of concrete by 12.5 %, which is particularly significant for higher concrete volumes. The produced concrete is suitable for lightly loaded structures, such as foundation footings, surface beds and walkways to benefit low-income...
The copyright in this thesis is owned by the author. Any quotation from the thesis or use of any ... more The copyright in this thesis is owned by the author. Any quotation from the thesis or use of any of the information contained in it must acknowledge this thesis as the source of the quotation or information.