Document Qg41mqkdgn57rewNGoxq1Jgbo

JOHNS. H1NTILLE INDUSTRIAL PRODUCTS Sil-O-Cel Insulating Brick Johnt-Manrille manufirtures three types of Sil-OCel* Insulating Bride: Sil-O-Cel Super Brick and Sil-O-Cel C-22 Brick for use behind refractory linings only, and Sil-O-Cel 16L Brick for both back-up and direct exposure. All are particularly useful where high load-bearing characteristics are required. The new Sil-O-Cel 16L is an improved replacement for the former Sil-O-Cel Natural Brick. All are used in boilers, c stills, heat-treating furnaces, kilns, lehrs, flues, retorts, sucks and other types of high temperature equipment Their maximum service temperatures and types of bonding mortars are given below. Complete properties are shown in a following table. fw < Uriah Mas IvIm lMk lMOIriUk lb 4 Ik Sil-O-CelSuper 2500 SuperBrick 80 Sil-O-Cel C-22 2000 Sil-O-Cel 80 Sil-O-Cel 16L 1600 Sil-O-Cel 80 J-M1626 200-400 Cement The mortars used for laying the Sil-O-Cel brick possess high insulating properties to assure a wall oi practically the same insulating value throughout All types of Sil-O-Cel brick are furnished in the standard 9" shapes of the 2V&" and 3" series, as well as special shapes. "Care teelT of SitO-Ce/ Bride in dotcn-drtft brick kiln /or firing n/ncMriti be laid up with thin joints and permits bonding with the fire brick where required. Sil-O-Cel 16L Brick For temperatures to 1600 F SU-O-Cel C-22 Brick For temperatures to 2000 F Sil-O-Cel 16L Brick are made from diatomaceous silica, molded and calcined. They serve for tempera tures to 1600 F, back-up or exposed. This type of Sil-O-Cel brick is one of the most efficient insulating brick obtainable and is used in preference to other types of Sil-O-Cel Brick except where severe tempera tures are encountered. Sil-O-Cel 16L Brick have a cold crushing strength of approximately 350 psi, and so are amply strong for structural purposes. Owing to the extremely low reversible thermal expansion, less than 0.1 at 1600 F, Sil-O-Cel 16L Brick are particularly advantageous in building long-lasting refractory masonry. Because of this valuable property, 16L brick can also be bonded for direct exposure. Sil-O-Cel 16L Brick are furnished so that accurate, smooth surfaces are assured. This enables the brick to n. u. s. pt. oa Sil-O-Cel Brick are an efficient, diatomaceous silica brick, molded and calcined for use as a back-up in sulation behind fire brick or behind insulating fire brick where the temperature on the insulation will not exceed 2000 F. In preventing transmitted heat losa, C-22 Brick are three to four times as effective as fire bride in retard ing heat flow through furnace walla. In other char acteristics, they combine, to a remarkable degree, all those qualities desirable in an ideal, general-purpose insulating brick. Sil-O-Cel C-22 Brick have a cold crushing strength of about 700 psi, equivalent to over 50 tons per sq ft. They are therefore especially recommended for loca tions where high load-bearing properties are essential. While this strength is ample for structural purposes, C-22 Brick should not be used as headers in bonding walls except where they are used as a veneer. SIL-O-CEL INSULATING BRICK SaMurr. ISSS (Caaaalttac tOmt 4aU4 April. 1M1) Was la VXi. rnoouern 111 . srt IN-19 INDUSTRIAL PRODUCTS JOHNS. MAN V1LLE are also used as a combination insulating and face brick course on the outside of bake ovens and similar equipment where an exterior wall of pleasing appear ance and wear-resisting properties is desired. OmtUe well { Craw Cracking Unit bring fnndatad with 4}s* / SOJMM COS Brick in "core malT cenntrim Sil-O-Cd C-22 Brick are furnished true to rise within the limits prescribed for No. 1 fire brick. This makes possible correct bonding with the fire bride. In addition to its other uses Sil-O-Cd C-22 Brick are often used as the outside course in die combostion sone and first pass of water-tube boHert. They Sil-0-Cl Soper Brick For temperatures to 2500 F Sil-O-Cd Super Brick are a calcined type of Sil-O-Cd brick designed for exceptionally severe insulating serv ice where subjected to temperatures behipd the refrac tory in excess of 2000 F. The Super Brick can be used where they will come in contact with temperatures up to 2500 F. These brick have a cold crushing strength of approximatdy 300 psi, equivalent to over 21 tons per sq ft While this is ample for structural purposes, they should not be used as headers in bonding walls, except where they are used in veneer wall construction. In many cases it is possible to cut down on the *<* of first-quality fire brick when Sil-O-Cd Super Bride are used. For instance, in equipment where Sil-O-Cd 16L Bride would be used behind 13%" of fire brick, Sil-O-Cd Super Brick could be safdy used back of 9", or in some cases as low as 4%" of re fractory, introducing a considerable saving. Properties of Sil4)-Cel Insulating Brick Dcnsitiaa, lb per eu 11.................................. Transverse Strengths, pat........................... Cold Crushing Strengths, pal.................... Linear Shrinkage, parent......................... Reversible Thn nisi Expansion, percent.. aauitnrrivtty (Ba in. par sq ft par F par hour at Beeeanendad Sari Its Pranrtlu etna far this trick in lil* tU5 00 350 0.7 at 1600 F Lms than 01 at 1600 F 095 at 600 F LOlatOOOF L07atl00OF LlSatl200F 1600 F 1600 r Catt 38 115 700 08 at 2000 F 07 at 2000 F 187 at 500 F 188 at 1000 F 288 at 1500 F 2000 F -- tope* 40 90 300 28 at 2500 F U at 2000 F L70at 500F IRSatlOOOF 2J9atl500F 2.45 at 2000 F 2S00F -- IN-10 SILO-CEL INSULATINC BRICK I (CuMOtaa sheet faM April. 1S41)