DIGEST 2006 - Sabita

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<strong>Sabita</strong> Members Ordinary Members AJ Broom Road Products (Pty) Ltd Akasia Road Surfacing (Pty) Ltd Bitumen Construction Services (Pvt) Ltd Bitumen Supplies & Services (Pty) Ltd Black Top Holdings (Pty) Ltd BP SA (Pty) Ltd Brisk Asphalt Surfacing (Pty) Ltd Chevron South Africa (Pty) Ltd Colas SA (Pty) Ltd Engen Petroleum Ltd Javseal (Pty) Ltd Milling Techniks (Pty) Ltd More Asphalt Much Asphalt (Pty) Ltd Murray & Roberts Construction Ltd National Asphalt (Pty) Ltd Nikamandla Construction (Pty) Ltd Nyanga Roads (Pty) Ltd Phambili Road Surfacing (Pty) Ltd Polokwane Surfacing (Pty) Ltd Rand Roads (a division of Grinaker-LTA Ltd) Roadsmart (Pty) Ltd Sasol Oil (Pty) Ltd Shell SA Marketing (Pty) Ltd Spray Pave (Pty) Ltd Tarfix (Pty) Ltd Tarspray cc Tosas (Pty) Ltd Total SA (Pty) Ltd Van Wyk Tarmac cc Zebra Bituminous Surfacing cc 174
Associate Members Africon Engineering International (Pty) Ltd Arcus Gibb (Pty) Ltd Asch Professional Services (Pty) Ltd BCP Engineers (Pty) Ltd BKS (Pty) Ltd Cape Peninsula University of Technology Dick King Lab Supplies (Pty) Ltd Entech Consultants (Pty) Ltd GMH/CPP Consulting Engineers (Pty) Ltd Goba (Pty) Ltd HHO Africa Holcim SA (Pty) Ltd Iliso Consulting (Pty) Ltd Jeffares and Green (Pty) Ltd Kaymac (Pty) Ltd t/a Kaytech Lafarge South Africa Ltd Lidwala Consulting Engineers (Pty) Ltd Ninham Shand (Pty) Ltd PD Naidoo and Associates (Pty) Ltd Rankin Engineering Consultants Sasol Technology Fuels Research Sasol Wax (a division of SCI) Siyenza Engineers cc Specialised Road Technologies (Pty) Ltd Stewart Scott International (Pty) Ltd Tshepega Engineering (Pty) Ltd Unitrans Fuel and Chemical (Pty) Ltd Vaal University of Technology Vela VKE Consulting Engineers (Pty) Ltd WSP SA Civil and Structural Engineers (Pty) Ltd Affiliate Members Beosumbar and Associates cc DMV Harrismith (Pty) Ltd MTTC (Pty) Ltd Salphalt (Pty) Ltd The Synthetic Latex Co (Pty) Ltd TPA Consulting cc 175
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DIGEST 2006
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Mission Sabita’s plans and action
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4. Innovation The use of steel slag
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1 Valediction
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economic growth. In addition to str
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one of the world leading trade orga
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Choosing road surfaces: Bitumen, gr
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we can economically test a possible
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oads. These considerations influenc
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double that for two-lane surfaced r
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elative fluctuation by increasing o
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Optimising resource utilisation: Ag
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COSHEC in 2007: Health and safety i
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designed to assist road authorities
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• Obtain endorsement and commitme
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• institution of Sabita safety tr
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Towards an informed industry: Updat
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versions of some of Sabita’s earl
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from texture treatments to overlays
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South Africa's education system: A
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environment and red tape on small a
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Figure 2. Matric result trends the
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professional work, within the conte
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Assessing Teachers are often unclea
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3 HG learners in a class of 40 SG).
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The following observations may be m
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documented successful maths and sci
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public awareness programme to illus
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Surge in SAT's knowledge transfer a
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organisation. With the improvement
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accomplished through self-study. Th
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4 Innovation
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calcium oxide is not fully hydrated
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oad construction. As mentioned prev
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M ix type Coars e continuous Coarse
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Conclusions From the results presen
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itumen emulsion or foamed bitumen,
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operations, as well as to advance a
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Fischer-Tropsch wax bitumen modifie
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Viscosity The significant influence
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Figure 3: Layer temperature profile
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easily formed and shaped where nece
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Achieving cost-efficiency through t
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Graded stone seals The seals that a
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Figure 6 illustrates how the stone
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decided rather to use the old TRH8
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ecommendations (R69/97 for bitumino
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compositional fractions (See Table
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PRADO analysis. Large quantities of
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HMA research programme: Forensic in
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Conclusions The following conclusio
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test programme, will seek to develo
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Out of the box thoughts on traditio
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Or more appropriately, a lone thar
Page 115 and 116: seal, and everybody's happy! Or wer
Page 118 and 119: The status quo on landfill sites: D
Page 120: In August 2004 a status quo report
Page 123 and 124: Bond coats Bond coats were first us
Page 125 and 126: peak value of 1,2 J/cm 2 . Typical
Page 127 and 128: promote the breaking of the emulsio
Page 130 and 131: Bitumen stabilised materials: A per
Page 132 and 133: Figure 2: DSR testing at comparativ
Page 135 and 136: Revision of Technical Guideline 1 (
Page 137: º introducing upper limits on some
Page 140 and 141: void loss due to embedment and aggr
Page 142 and 143: Alternatives to coal tar products:
Page 144 and 145: you don’t measure” might have b
Page 146 and 147: gradually increased from approximat
Page 148 and 149: Conclusions MC 30 cutback bitumen
Page 151 and 152: Towards industry self-regulation: T
Page 153 and 154: Figure 2: Accidents involving heavy
Page 155 and 156: RTMS standards for transport operat
Page 157 and 158: operators as part of their quality
Page 159 and 160: • System installation i.e. applic
Page 161 and 162: Notes 169
Page 163 and 164: Advertiser Index Advertiser Page Co
Page 165: Sabita Video Training Aids Video se
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DIGEST 2006 - Sabita

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