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Date: 2005
Language: en
Type: Text
Identifier: tut:4199
Description: This paper describes the second part of an investigation into the removal of iron and manganese fromwater with a high dissolved organic carbon (DOC) loading. This investigation focused on the use of f ... More
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Date: 2004/11/01
Language: en
Type: Text
Identifier: tut:3425
Description: This paper describes an investigation to separate and selectively recover silver, gold and platinum from jewellery and laboratory wastes, and produce technical grade material suitable for training pur ... More
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Date: 2004/09/16
Language: en
Type: Text
Identifier: tut:3307
Description: Research concerning the formation and removal of black crusts on various historical objects is approached from many different angles. The so-called “yellowing effect”, observed after laser treatment f ... More
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Date: 2004/04/01
Language: en
Type: Text
Identifier: tut:4202
Description: This paper compares the plant performances of various synthetic gypsums used as set regulators in cement. The decision about the suitability of a specific gypsum was based on measurements and comparis ... More
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Date: 2004/04/01
Language: en
Type: Text
Identifier: tut:3317
Description: This paper describes the findings of an investigation into the preferred method of chloride analysis on South African cement, clinker and raw materials, with low levels of chloride. The investigation ... More
Date: 2004
Language: en
Type: Text
Identifier: tut:3339
Description: The control of over-used cooking oil presents a number of problems. Not only are there health issues to consider, the assessment of the degree of degradation also requires tedious and laborious chemic ... More
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Date: 2003-10-04
Subject: Lime | Geological origin
Type: Text
Identifier: tut:1409
Description: The rate of transformation from CaO to Ca(OH)2 during the slaking process is influenced by a number of factors. In this investigation the effects of common ions normally encountered in the slaking wat ... More
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Date: 2003-03-31
Type: Text
Identifier: tut:1410
Description: The selective extraction of Cr(VI) in a cement matrix, based on treatment with 0.1 M Na2CO3 solution and subsequent determination of chromium by electrothermal atomic absorption spectrometry has been ... More
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Date: 2003/03/31
Language: en
Type: Text
Identifier: tut:4227
Description: The selective extraction of Cr(VI) in a cement matrix, based on treatment with 0.1 M Na2CO3 solution and subsequent determination of chromium by electrothermal atomic absorption spectrometry has been ... More
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Date: 2003-03-19
Subject: Clinker | Trace elements
Type: Text
Identifier: tut:1412
Description: The trace element content of clinkers (and possibly of cements) can be used to identify the manufacturing factory. The Mg, Sr, Ba, Mn, Ti, Zr, Zn and V content of clinkers give detailed information fo ... More
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Date: 2003
Language: en
Type: Text
Identifier: tut:4190
Description: The work describes various physical and chemical treatments to eliminate the deleterious effects of impurities in phosphogypsum on the delayed setting time and impaired strength development behaviour ... More
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Date: 2002
Type: Text
Identifier: tut:1463
Description: The cement industry plays a major role in the world economy. Analytical techniques are central to its success. Many of the techniques currently in use, mainly wet classical methods, could be improved ... More
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