Iron corrosion; anti-fouling and anti-corrosive paints . iron plate by fourteendays exposure to atmospheric action. structures an important function is discharged by the rivets,which have to unite the individual plates, stays, girders, etc.,which in turn are jointed, screwed, etc., together. If rust isallowed to gain a foothold in the rivets and screws therigidity of the entire structure is imperilled. The rusting ofone, two or more rivets in a girder, stay, etc., will not 38 mON-COEROSION AND ANTI-COREOSIVE PAINTS. endanger safety, provided there are plenty of others stillsound ; but, if suit
Iron corrosion; anti-fouling and anti-corrosive paints . iron plate by fourteendays exposure to atmospheric action. structures an important function is discharged by the rivets,which have to unite the individual plates, stays, girders, etc.,which in turn are jointed, screwed, etc., together. If rust isallowed to gain a foothold in the rivets and screws therigidity of the entire structure is imperilled. The rusting ofone, two or more rivets in a girder, stay, etc., will not 38 mON-COEROSION AND ANTI-COREOSIVE PAINTS. endanger safety, provided there are plenty of others stillsound ; but, if suitable care be not exercised, the whole ofthe rivets and screws may become rusted, and then thedanger begins. Everybody knows that an invisible crack isoften sufficient, if filled with water and then frozen, to causea large stone to split asunder, and a similar thing occurs inrivets, a probably imperceptible space between the rivet headand the iron plate sufficing to admit water, set up rusting,and facilitate oxidation, so that in the course of years the. Pig. 22 (magnified).—Rust produced on rolled iron plate by fourteen daysexposure to atmospheric influences. rivet is entirely eaten away with rust, and thus loses its holdand power of binding the parts together. If, now, the samething happens in a large number of the rivets, then thestability of the structure is rendered questionable and acci-dents of the worst kind may ensue. Eust is an unwelcome visitor in all iron articles, but inthe case of iron structures, and especially bridges, is adangerous foe, and one that should be combated by everyavailable means. The manner in which this can be most IRON-CORROSION AND ANTI-CORROSIVE PAINTS. 39 effectually done will be thoroughly discussed in a latersection dealing with the prevention of rust by paint. Already, in preceding pages, a number of photographicreproductions of rusted iron plate and a few other objectswill have been noticed, and to these comes a further seriesrequiring bu
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcorrosionandanticorr
