Search Results - "POTGIETER, S.S"

An investigation into the effect of various chemical and physical treatments of a South African phosphogypsum to render it suitable as a set retarder for cement by Potgieter, J.H., Potgieter, S.S., McCrindle, R.I., Strydom, C.A.

“…The work describes various physical and chemical treatments to eliminate the deleterious effects of impurities in phosphogypsum on the delayed setting time and…”
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The application of Raman spectrometry to investigate and characterize cement, Part I: A review by Potgieter-Vermaak, S.S., Potgieter, J.H., Van Grieken, R.

“…Raman spectrometry has received attention for the past 3 decades in its application to the characterisation of pure cement phases, white and grey cements…”
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A comparison of the performance of various synthetic gypsums in plant trials during the manufacturing of OPC clinker by Potgieter, J.H., Potgieter, S.S., McCrindle, R.I.

“…This paper compares the plant performances of various synthetic gypsums used as set regulators in cement. The decision about the suitability of a specific…”
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Determination of hexavalent chromium in South African cements and cement-related materials with electrothermal atomic absorption spectrometry by Potgieter, S.S, Panichev, N, Potgieter, J.H, Panicheva, S

“…The selective extraction of Cr(VI) in a cement matrix, based on treatment with 0.1 M Na 2CO 3 solution and subsequent determination of chromium by…”
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Heavy metals removal from solution by palygorskite clay by Potgieter, J.H., Potgieter-Vermaak, S.S., Kalibantonga, P.D.

“…The possible use of palygorskite clay, mined in the Dwaalboom area of the Northern Province of South Africa, as an adsorbent for the removal of metal ions such…”
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Particulate matter and gaseous pollutants in residences in Antwerp, Belgium by Stranger, M., Potgieter-Vermaak, S.S., Van Grieken, R.

“…This comprehensive study, a first in Flanders, Belgium, aimed at characterizing the residential indoor air quality of subgroups that took part in the European…”
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Comparison of limestone, dolomite and fly ash as pre-treatment agents for acid mine drainage by Potgieter-Vermaak, S.S., Potgieter, J.H., Monama, P., Van Grieken, R.

“…The physical, chemical and biological nature of Vaal Dam water, the main source of water in Gauteng, South Africa, is often affected by underground water…”
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The application of Raman spectrometry to the investigation of cement by Potgieter-Vermaak, S.S., Potgieter, J.H., Belleil, M., DeWeerdt, F., Van Grieken, R.

“…Various attempts to use Raman spectrometry to analyse the mineral phases in hydrated and unhydrated cement have been made and results were published on pure…”
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Proposed modifications to the method for the determination of available lime by Potgieter, J.H., Potgieter, S.S., Legodi, B.

“…Lime is an important industrial chemical used widely in the steel manufacturing and water treatment industries. One of the major procedures employed to control…”
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A further method for chloride analysis of cement and cementitious materials — ICP-OES by Potgieter, S.S., Marjanovic, L.

“…This paper describes the novel application of inductively coupled plasma-optical emission spectroscopy (ICP-OES) for the analysis of the chloride content in…”
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Rapid determination of CaCO3 in mixtures utilising FT—IR spectroscopy by Legodi, M.A., de Waal, D., Potgieter, J.H., Potgieter, S.S.

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Comparative overview of indoor air quality in Antwerp, Belgium by Stranger, M., Potgieter-Vermaak, S.S., Van Grieken, R.

“…This comprehensive study, a first in Belgium, aimed at characterizing the residential and school indoor air quality of subgroups that took part in the European…”
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Investigation into methods of chloride analysis of South African cement and cement-related materials witte low chloride concentrations by POTGIETER, S.S, POTGIETER, J.H, PANICHEVA, S

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Influence of Ru additions on the corrosion behaviour of WC–Co cemented carbide alloys in sulphuric acid by Potgieter, J.H., Thanjekwayo, N., Olubambi, P., Maledi, N., Potgieter-Vermaak, S.S.

“…The aim of the study is to investigate the influence of ruthenium (Ru) additions on the corrosion behaviour of WC–Co cemented carbides when exposed in a…”
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An evaluation of the incorporation of a titanium dioxide producer's waste material in Portland cement clinker by Potgieter, J.H, Horne, K.A, Potgieter, S.S, Wirth, W

“…From the very limited amount of work done, it was demonstrated that the Ti02 containing waste material could possibly be incorporated into an ordinary raw mix…”
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The effect of ultrasonic energy on lime slaking by Potgieter, S.S, Strydom, C.A, Gheevarhese, O

“…Lime slaking is important for its use in a number of industrial applications. There are normally a number of factors that can influence the rate of the…”
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Rapid determination of CaCO 3 in mixtures utilising FT—IR spectroscopy by Legodi, M.A., de Waal, D., Potgieter, J.H., Potgieter, S.S.

“…The quantitative determination of limestone in various mixtures is a very important analytical problem for several industrial processes, especially so for the…”
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An empirical study of factors influencing lime slaking. Part I: production and storage conditions by Potgieter, J.H, Potgieter, S.S, Moja, S.J, Mulaba-Bafubiandi, A

“…The influence of storage and production on the reactivity, i.e. the slaking rate of lime in water, has been investigated. It was found that hard burning of the…”
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A Proposed Alternative Suggestion for the Disposal of Used Cooking Oil by Potgieter, J.H., Vermaak, S.S. Potgieter, Tona, D.D., Anelich, L., Roux, M.P., Delport, W.

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A plant investigation into the use of treated phosphogypsum as a set-retarder in OPC and an OPC/fly ash blend by Potgieter, J.H., Howell-Potgieter, S.S.

“…This investigation describes the successful substitution of phosphogypsum for natural gypsum as a set-retarder for cement as proved in two separate plant…”
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