Document 09o4dpRpoewK15Z2brY3vpjO

Messrs: LASQHATORX COMMITTEE HITTING April 17, 1953 R. V. Higgins - Absent H. if Levis E. V. Rix B. Speelman G. Jarecki T. Clousing R. Priegel J. B. Smith (Guest) . R. Harden R. B. Abell PLAINTIFF'S II EXHIBIT IlyiLtA I* MHD- 12 5. Gentluoen: Meeting vas called to order at 11:00 A.M. on April 17, 1958, in the Aurora Laboratory Convarence room. The next nesting will be held in the same pi.ce on Hay 15, 1958. ACTIOS TAKEN OK REGULAR AGENDA: 1. E3-A Hot Strength Testing Ve are nov testing Thor HB tile after a 43 hour soak at a flange temperature of 1C0F. Ve have completed these tests at 2000, 1S00, 1600, 1400 and ifter the 1200 tests go to 1000 to fill in date on the lover temperatures. Ve have just enough tile left to finish the 1200 end 1000 tests and have 200 none on order for further tests. These vill be delivered before ve complete our nov scheduled tests so there vill be no interuption. 2. S4-3 Cold Impact Test Program So Action 3. E7-B Tile Abrasion Test Program So Action 4. E8-B Coaperitive Competitive Testing Report vill be completed before tho next meeting. 5. E12-B Rev Modal Themolayer Vail A full scale model of tba Marine Veil using tbs heavy Thermolayer Vail castings and tilo v^e built in the Laboratory by Messrs* Rim and Stoffel. A report on the ontira project along with progression photos was vritte& and cade up for all interested parties including tha Engineering Department. At the present tins tho plans for a nev furrece to test this construction under heat hsve teen shelved. LABORATORY COMMITTEE MEaTIHG Page 2 6. Z13-3 Low Cost K Factor Equipment This project will be deferred until rore time is available or we bare a greeter icnnedicte seed than we row have. 7. H4-B American Arch Light Weight Insuiting Firebrick Wall This project is now reinstated ard upon receipt of drawings from Sari Davie we will proceed. 8. E1&-A Cold Tension SP13, A.P. Green =pire 31A This test in, as of sow, discontinued end will ce dropped froo the agenda 9. PI-A Block Insulation -P-ssenrch A. Block Snaking Ko pro clans - so action B. ASTM tests and Equipment flo action 0. Block Machine Improvements Sew bottoa drive equipment is cow installed. Test runs are underway and we are engaged in adjustments end minor alterations. This equipment will eventually make all sisas of block, Including 1", with a formed crust on both top and bottom. Wa are now con cerned with tho finished product, i.e. will the density be higher or lower due to more affieiout water removal? We ere definitely trying to neke hloek to the minimum density specifications but not of minimal strength. Me '.ill continue to see if we can find any alternate i-iodera to decrees* possibility of sacking and improve other characteristics. D. Drying Discussion At the praoect time out evens (A) are capable of drying block at the rat* of 350 cortone per day while the block machine, wool production urxi saw room and packaging capacity ie 500 certono per day. 5. V. Rim is tc sake & summary of all work done in the past on the ovens to see if wa can possibly raise their efficiency to the 500 carton figure without too much expense. S. Storage vs: Strength and Density In eleven weeks there has base do change in density or strength of storage test specimens. LABORATORY COMMUTES HE27IKG Page 3 10. P2-A Slug free Wool ard Shot Reduction A. Slug Sapartf.tor - Howard Speelnan gave a discussion of what work was bei.Bg core ard whit had bean dose on this project. B. Shot Reduction - Some discussion ca vibrating scrsers etc. tut no conclusions reached. C. Wool Granulation - Wo c.re now producing a grade of wool for use in #711 Cement that is considerably finer than production of 4 to 6 Booths earlier. Mr. dousing end Mr. Snith both thought this change was desirsable. 11. D2-3 Pyroscat 3. ?.. Harden is now working on a modifiertion of ?yR5 to reduce surface crazing and checking. Mere information will be forthcoming. 12. D4-A Utility Finish A.' U9 is still our standard prsduct shipped iu ell cases calling for Utility Fini3h unless something special is ordered. B. 29 is the new proposed Pair Croce Utility Finish. This arterial is approved by J. 3. Smith. Ve now read . :.mt runs to test before approved production for special shipments. We are going to try and find othsr Gources of supply for iha proper type of Diatoaaceous Earth necessary for thin use. E. R. Harden is to pass this formula tion to Howard Spoelmaa ard r.s>-:a a report to the committee on the outcome of the plant run testa. E. Harass is to select a' special grade of Utility -with a ccmpressiva strength of 225psi to see if It will conform to Kaval Specifications. 13. D12-B Saw Type Block Insulation Research Harry Lewis requested vnrk be dona using tba follotring alternate aggregates for blot: formation, Vormicuilte, Asbestos (Blue and WhiteJ both with and 'without sdcad wool. LABORATORY COMMITTEE MUTING Page A Inactive Projects: 1. E6 Hot Impact 2. E9 Sew Reiractory Barger 3* P3 Rust Inhibited Ir.sulr.ting Cement ' 4. D1 Decretes 5. D3 Castebles, 60, SO. ICO. 120# class 6. D5 Thinsullner end Tninsuliner S/L 7. D9 Coating Materials, yaterproffing 8. D13 Bonding Cement Respectfully Subdttad, M. H. DETRICX COMPANY LABORATORY RA:adv R. =. Abell