Document 10NOnZG07kLkj4v2b7YrbKM3o

T, C'Roarfai / 7. C Stump? J C1TZ0 7ta April 18, 1 t \i ISoet of our laboratory testa resulting In Research Bullatins wm cm BLAZE--ScTXID inch mm deflection characteristics, ccrroeica resistance, etc. Ten requested that w* pro-rid* teat rwaulta for EXC-SEinD. 3ino* w* have no such Ui* reports, w* wade trr&B^ws&t^ with tbe International Teetiag Laborwtcrlra to coodxct a eerias of teats vhich mm felt mold be Applicable, SIdo* momt of tbe ooet of tbe test Is In aet--tip and not In testing, It u poaaibl to teat different products at vwr7 little extra co*t, Therefore, teats wero conducted on C17C0 BLAZB-, EXIT- and SCSJED-SEIHI!, and Lispet IE25* Please find tbe critical teat reports which you *57 assign C-nu=bcrs and brre tbe re ports duplicated for distribution. The report on the carpetitim Lirpet is rot inclu ded because there was an error in reporting tbeir density, and therefore the report la being reriaed. All prcaucts were applied using corral application sothods and densities aticb are as recceaaecded. They were CATCO BUZZ-SETS - 11.2 lbs./cubic foot, HZAT-SEina - 9.85, SGGKD-SKIS - 17.9, and Lixpet approximately 9 lba./cuhio foot. 'In the Moisture Absorption Test, specimens were naintained in a bucaidity ebanber at 95? relative buaidity and 1ZCP. for 96 hours. This is an extrenely seTere teat and ^is as specified in Ooemercial Standards CS131-d6, Tbe naxlxua gain was fer SCUTO-SHIZID " 'iicb was 3-C2 by weight. This fairly insignificant when considering wood normally .Js a noisture content of around S - 10?. This teat result has nothing to do with con densation, sfcere under tbe proper conditions, tbe weight can sore than double due to pick up of water. Tbe Corrceion P.esistancs Testa were also conducted according to Coanarcial Standards CS131-46 and are a duplication of the teat wb reported in Research Bulletin CRA18, e-=opt that only cold rolled steel was used* These specifiers were also mintainod at 95? relative huaidity at 120?. for 96 boom and tbe steel protected with fibers can not show greater corrodes than tbe unprotected ;steel# As indicated in.,tbeir repent, tbe unprotected steel shewed heavy spots of corrosion throughout, while tbe steel protected with CAJCO shewed no ootioeable oorroclvw effect, and they therefore conclude it actually protects the setal frea serious ccriuclvp action* This concurs with the results free tbe Associated Testing Laboratories Corrosion Testa conducted in 1959. A nunbex of deflection testa were reported in our Research Bulletin CE?72 This sue type of teat was not rzzi because it would be excessive in cents, and although it wy h* vary practical it is not conducted on as scientific a basis as the laboratory would 1A1, tbgT^fpro caly sirple deflection teats were run. CA7C0 1* tbicb was applied X* vide x 22" long to ateel plates A* x 2Z" x 1C ga. and were deflected by applying a con centrated load in the center until failure occurred. These results are ecftrwoely good since even the poervst HXlT-SHim) required 2.5* of deflection per 22*. of span or l/Ui j.of tbe span. It nay be a little difficult to apply these results to what night happen Ut a ttftal building. Komvnr, it does point cot that CAfCC, if properly applied, should tale severe deflection. .P ' to JJ'.OtfUoorfe* f bji CJLTCO looti -2~ Ipril IS, 1^62 Dating ord rUJtit* too to *r* mnrrozrtly 1* proeroo** Thl* Tibr*tlo*. toot eocductod 1* j-lort-*d to this problm. X*x*b*y *** Vcttlo& Ccopony dooeribo this KotAp fcethcd An tboir litcrstsra and roqnoat that it bo opooiflod la rcbltootizrl rp*clflo*tler* t Allnlnsto bleodod prcdwU, ofeieb ibtry cIaIa rill them a groAtor porooatog* of TolX-cot tbon xltb Li*rpert. Doing tboir toot ootbod, tbo rooulto indicato BUZX--32TSID without boaIot vltb L.08S fall-<nit m caaparod to Llxpot with 1*2X fAll-occt. BUZZsKTrJJi with ooaIox and EUT- ord SOUS)-3illzlD without o*l*r All into L*o* than 5J. \/ Vo Also cardtxrtod a jorloo of Bond And Sboor Strength toata. Bowwtwr, du to diffi culty with thoix tooting Apperstus, errooaccarooulto wrv obtained. to zpoct to rwpoat tbeoo toots / Ploaao odrlBo If you would Ilk* cur department to placo this la a fcr of JtaaoArch Ballot in to bo distributed. FIS/oe cc: J. P# Trb&ln V>*v C harbors Z-U::. / * j