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Guest WriterBob Andrew, our guest writer, is a consulting value engineer and Honourary Life Member of this Association.Like light, people and companies canbe different thingsOne of the strangest ideas ofquantum physics is the ‘wave-particleduality’ of light. Photons, which makeup light, exist as particles and wavesat the same time. They are bothparticles and waves.The characteristics of waves andparticles are necessary for a fulldescription of what light is. Asobservers, however, we cannotmeasure this duality, we cannot seewhat light is really like. If we treatphotons as particles, we candetermine their exact position butnot their energy. If we treat them likewaves, we can determine their energybut not their position. They areindeterminate and become only whatwe measure them to be.In the quantum world, bothdescriptions of light are equally validand complementary. Neitherdescription is complete in itself.There are circumstances where it ismore appropriate to talk of light asparticles and circumstances where itis better to think of waves. Thisschizophrenic personality of light iscalled ‘complementarity’.The ‘both/and’ character of light is farremoved from our mechanistic anddeterministic world, which has an‘either/or’ nature about it. In ourworld, we think of objects as definitethings, which we can accuratelymeasure. While the environmentmight change them, they do notchange internally-they do notbecome something else; they remainwhat we see them as.Quantum theory means uncertainty.We can never be sure what we aremeasuring since the act ofmeasurement affects the thing beingmeasured. The more accurate themeasurement, the more the item isaffected. The measurement definesthe thing being measured. Themeasurer influences themeasurement.New Age philosophers, like DanahZohar and Ian Marshall (TheQuantum Society) have begun torealise that people may also possesscomplementarity. They can havemore than one characteristic: theycan be both one thing and another atthe same time; it depends on whatwe measure them as. We cannot,however, measure them completely;we cannot fully describe them.Whatever we describe people as therewill always be some indeterminacyabout the person-something we cannever describe. The way we measurepeople will define the characteristicwe are measuring.In quantum theory terms, there is nopoint in judging people by measuringtheir intrinsic properties, such as IQ,dexterity, literary comprehension, etc.These measurements will always beincomplete. People should rather bemeasured by their behaviour in givencircumstances. When they are judgedon their behaviour alone, thequantum uncertainty of theirpersonality disappears for that set ofconditions we place them in.Quantum theory also suggests thattwo people can have different viewsof the same matter and yet be equallyright. It is therefore illogical to judgepeople on their views. The peopledoing the judging will influence theviews.Alfred Korzybski, as long ago as1933, (Science and Sanity) recognisedthat viewing people in quantumtheory terms required a newlanguage, which he called ‘English-Prime’ or ‘E-Prime’. In E-Prime, theword ‘is’ is removed. Instead ofsaying: “John is lazy”, in E-Prime wewould say: “John appears to be lazy inthe office today”. “John is a racist”would become “John has some racistideas which I find offensive” and soforth. One can never be sure exactlywhat a person is really like and ourlanguage should reflect this.Quantum theory can destroy themyth that a company has to be onething or another. Many companiesbrutalise themselves by sticking tothe seemingly rational policy thatthey can’t be two things at the sametime. Stability or progress,conservative fiscal policies orentrepeneurship, home-grownmanagers or imported skills is thedilemma that many companies face.In the quantum world, companies donot have to wrestle with theseparadoxes; they do not have to worryabout being ‘either/or’, they thinkalong ‘both/and’ lines. They seekopportunities in both directions.The classical ideal of a securedeterministic world, waiting out thereto be analysed and exploited, doesnot fit into quantum theory. Instead,we must regard ourselves asinalienable participants in anindeterminate world.42 Hot Dip Galvanizing Today Volume 4 Issue 1 2007
No. 13/2007Case StudyMoma Sands Project, MozambiqueThe ApplicationThe extensive use of hot dipgalvanizing for structural steelcomponents on an extremely remotesite where logistics, materialshandling, transport and co-ordinatedplanning had a profound influenceon the project timing andcompletion date.Environmental ConditionsThe corrosive conditions encounteredat this remote location can beclassified as a C4 or a C5environment in terms of ISO 9223. Interms of this classification andconsidering the hot humidenvironment, in a marine location, aC4 or “Exterior industrial inland orurban coastal” conditions areconsidered applicable. Zinc corrosionrates for this environmentalclassification is estimated in therange of 2 to 4 micron (µm) per year.Considering the actual siteconditions, the expected corrosionrate of zinc would be approximately 2to 3µm per year. Assuming theseenvironmental conditions theestimated “Service life” of the hot dipgalvanized structural steel would bein excess of 30 years before 1stmaintenance.The SiteOne of three such structures, where refined products will be stored prior to conveyance, via anoverland conveyor, to a specially constructed loading pier, for loading onto sea-barges fortranshipment to ships anchored offshoreThe site is located on theMozambique coast approximately 30minutes flying time north of Beira.The project involved the design, offsite fabrication of steel and hot dipgalvanizing, followed by the logisticsof loading, ocean transportation ofthe entire project facilities, transshipping,via a sea barge to thebeach, haulage inland over a distanceof 3 to 4 kms to the various sitescomprising the project. The projectrequired integrated logistics planningand co-ordination of all supplyarrangements. No infrastructure orformal facilities existed prior to thecommencement of the project.Our FindingsThe use of hot dip galvanized steel,in the given corrosive environment,will provide an expectedmaintenance free service life inexcess of 30 years. This estimate isconservatively based on the meanzinc coating thickness of 85µm and acorrosion rate of between 2 and 3µm per year. The actual coatingthickness measured during our sitevisit was generally found to be wellin excess of 100µm and more oftenthan not in excess of 120µm.Alternative corrosion controlcoatings can not match theHot Dip Galvanizers Association Southern AfricaUnit U4 (Upper Level), Quality House, St. Christopher Road, St. Andrews, BedfordviewP.O. Box 2212, Edenvale, 1610 • Website: www.<strong>hdgasa</strong>.org.za • E-Mail: <strong>hdgasa</strong>@icon.co.za
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Page 4 and 5: CommentsExecutive Director’sComme
Page 6 and 7: Continuous hot dip galvanized sheet
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Page 15 and 16: ADVERTORIALSHAPING THE FUTURE OF ST
Page 20 and 21: Safety and security including conti
Page 26 and 27: Duplex CoatingsA life cycle costing
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Page 30 and 31: Duplex Coating ReportDuplex coated
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Page 40 and 41: Member’s NewsRobor acquisition fi
Page 42 and 43: Personality Profilethat nobody woul
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