%MurNBconcretefinal070051; ]> Memorandum from C. R. Bramer to Clifford K. Beck [a machine-readable transcription] Bramer, C. R. Creation of machine-readable version: Russell S. Koonts Creation of digital images: Russell S. Koonts Conversion to TEI.2-conformant markup: NCSU Science and Technology Electronic Text Center. ca. 14 kilobytes NCSU Libraries. Raleigh, NC. Modern English, MurNBconcretefinal070051

Available from: NC State University Archives

Publicly-accessible

URL: http://www.lib.ncsu.edu/archives/etext/engineering/reactor/murray/

 2000

Nuclear Reactor Digitization Project

Raymond L. Murray Reactor Project Notebook

 Illustrations have been included from the print version. Scanned by Russell Koonts with Photoshop 5.0 software. Memorandum from C. R. Bramer to Clifford K. Beck <author>C. R. Bramer</author> <respStmt> <resp/> <name/> </respStmt> </titleStmt> <editionStmt> <p></p> </editionStmt> <extent>4 pp.</extent> <publicationStmt> <publisher></publisher> <pubPlace></pubPlace> <date></date> <idno>Manuscript copy consulted: NCSU Libraries call number UA105.16</idno> </publicationStmt> <seriesStmt> <p/> </seriesStmt> <notesStmt> <note></note> </notesStmt> </biblFull> </sourceDesc> </fileDesc> <encodingDesc> <projectDesc> <p>Prepared for the NCSU Libraries Science and Technology Electronic Text Project.</p> </projectDesc> <editorialDecl> <p>Spell-check and verification made against printed text using Notetab spell checker.</p> <p>The lineation of the manuscript has been maintained and all end-of-line hyphens have been preserved.</p> <p>The images exist as archived TIFF images, one or more JPEG versions for general use, and thumbnails.</p> <p id="ETC">Keywords in the header are a local Electronic Text Center scheme to aid in establishing analytical groupings.</p> </editorialDecl> <refsDecl> <p>ID elements are given for each page element and are composed of the text's unique cryptogram and the given page number, as in NEprop033050a for the title page of Clifford Beck's Proposal.</p> </refsDecl> <classDecl> <taxonomy id="LCSH"> <bibl> <title>Library of Congress Subject Headings July, 1951 English non-fiction; prose LCSH 24-bit color; 400 dpi Memorandum from C. R. Bramer to Clifford K. Beck Typescript 4 pp. July, 1951 MurNBconcretefinal070051

OFFICIAL USE ONLY TO: Clifford K. Beck FROM: C. R. Bramer SUBJECT: Final Report on Concrete Tests

Series&DensityDatePouredMixWork-abilityAppear.CastCylinderSlumpCompressiveStrength andSettingCommentsA 1/4June 193:15 P.M.13.27# 3/8 Bar. 220.26# 3/4 Bars(Tenn.) 23.53# Col. 48.82#Type IIICement21.50# WaterPoorExcellent buthad to berodded excess-ively.1/4"2,820 psiHard set at about15 hrs.Machine mixes allaggregates & cementdry mixed and thenall water added andmixed for 2 minutes. A 1June 193:30 P.M.Mix as above exceptextra water was addedto the remainingportion of A 1/4. FairExcellentsome excessrodding requir-ed.1"2,660 psiInitial set about24 hrs. Hard set48 hrs.    On above mix the 3/8" Barytes was screened to remove materialfiner than 16 mesh.   BJune 213:00 P.M.2.65# 3/8 Bar. 44.05# 3/4 Bar. (Tenn.) 4.70# Col. 9.80# Type II Cement3.64# Water(Material finer than16 mesh in 3/8 Baryteswas removed)VeryPoorFairRequired ex-treme rodding.Toostiffforsluptest.After 8 days indamp room was stillsoft. Removed tolab., allowed todry out. Appearedto set and harden. Disintegrated com-pletely when drop-ped in trash can.Col. & cement & water hand mixed. Then Bar. addedand hand mixedagain. CJune 213:45 P.M.10.65# 3/8" as is36.05# 3/4 Tenn. Bar. 4.70# Col. 9.80# Type II Cement4.14# WaterPoorGood Requiredexcess roddingToostiffforslumptest.As above for B.As above for B.

Series&DensityDatePouredMixWork-abilityAppear.CastCylinderSlumpCompressiveStrength andSettingComments DJune 221:05 P.M.46.70# Bar. Ga.4.70# Col. 9.80# Type III cementPenn Dixie4.00# WaterFair toPoorExcellentRequired excessroddingToostiff5,000 psiHard set in lessthan 15 hrs.Mixed Bar. & cement& 3.64# water byhand. Set in damproom 40 minutes.Removed, added andmixed col. Added .36#more water and mixedagain. E41.5#218#/cu.ft.July 94:45 P.M.46.70# Bar. Ga.4.70# Col.9.80# Type III P.D.4.00# Water.1 fluid oz. DarexFairMix seemedmore uni-form butwas stickyand hadoily ap-perance.Fair, somehoneycombeneeded. ExcessroddingToostiff.3,950 psiNot set 10 A.M.July 10. Takinginitial set 5 P.M.July 10. Hard set3 P.M. July 11.Hand mixed allmaterials exceptcol. This was addedabout 5 min. laterand then whole re-mixed. F41.62#219# cu.ft.July 95:40 P.M.46.70# Bar. Ga.4.70# Col.9.80# Type III P.D.4.40# water.1 fluid oz. DarexGoodUniformmix, butstickyand stilloily inappear.Good toexcellentSlumpnotrun,butwouldhavebeenabout1".4,130 psiSetting commentssame as E.Mixing same as E. G40.82#215# cu.ft.July 1011:55 A.M.poured46.70# Bar. Ga.4.70# Col.9.80# Type III P.D.4.6# WaterGood tofair.Good to excel-lent, but re-quired excessrodding1/4"5,380 psiHard set at3:00 P.M. July 11.Hand mixed everythingwithout the col. Putin humidity room for5 min. Removed, addedcolemanite, remixedand poured

Series&DensityDatePouredMixWork-abilityAppear.CastCylinderSlumpCompressiveStrength andSettingComments HJuly 1011:45 A.M.46.70# Bar. Ga.4.70# Col.9.80# Type III P.D.4.00# water.20# PuzzolithBestworkabili-ty so far.Poor, BadHoneycombe.Cast cyl. Mott-led in appear.Seemed to havebeen chem. Re-action betweenBar. And Puzz.Notrun.Not tested becauseof honeycombe.Not hard set at3:00 P.M. July 11.Was hard set at10:00 P.M. July 12.Hand mixed allingredients exceptcol. Added thisand remixed. J40.96#216#/cu.ft.July 104:30 P.M.46.70# Bar. Ga.4.70# Col.9.80# Type III P.D.4.50# water.05# Puzzolith.Bestwork-abilitythus far.Good, somehoneycombe.Normal rodding.Inferior to K.Notrun.5,020 psi.Hard set 3:00 P.M.July 11.Hand mixed Bar.,cement, and 4.20#water. Put in humidroom for 45 minutes.Removed, mixed in col.,added .30# watermixed. K40.72#214#cu.ft.July 105:00 P.M.46.70# Bar. Ga.4.70# Col.9.80# Type III P.D.4.50# water5 cc DarexExcellentbut notas goodas J.Mix stillseemedoily andsticky.Excellent.Better than J.Normal Rodding.Notrun.4,820 psiHard set 3:00 p.m.July 11Hand mixed Bar. &cement & 4.20# water.Set in humid room45 min. Removed,mixed in colemanite,added .30# water,mixed. L40.50#213# cu.ft.July 1212:50 P.M.93.40# Bar. Ga.9.40# Col.19.60# Type III P.D.9.60# WaterExcellentBest of all.Excellentsmooth appear.2 1/2"4,750, Hard set at4:00 P.M. July 13.Shrinkage of testcyl. appearedabout same asnormal concrete.Machine mixed. Bar.& cement & 8.80#water. Held in mixerfor 40 min. added col.and mixed. Added.80# water and mixedagain.   This is the recommended mix for the ReactorConcrete. C.R.B.   

Series&DensityDatePouredMixWork-abilityAppear.CastCylinderSlumpCompressiveStrength andSettingComments N28.75#150.5#cu.ft.July 1230# gravel20# sand7# Type III P.D.6# WaterToo wetExcellentExcessslupNot runHand mixed.   Plain concrete cyl. for comparison only.