Document 5D1ZpRRZ6zDd9neMv23xE76K0

FILE NAME Keene KNE DATE 1955 Feb 21 DOC KNE025 DOCUMENT DESCRIPTION Report - Calcium Silicate Test Data _ AC 232001 23201 LANGKATUNT REPORT ~-" anick anick Cosies to S. Carre E. M. Kinsey 1. L. McAllister LATE February 21 1955 SUBJECT Calcium Silicate Test bata and Attached are also on Carey best data on various Super Tempcheh calcium silicates The Ehret thret E is the & is Sate batch 19. dried in the plant crye formation ariet in the incurator material rulerred to as 1974 veettt a quest to be Fauco production prior to 1974 the her Salteru st more recently muffeured material material is the average of two samples of The d~ tsreported which was run on the block except the dalite 2 the block heat boat beets wer 'ran for at least 10 hours ^i the indicated indicated toperstures lined Unde lined values values values requirumubts requirumubts requirumubts requirumubts of either Grube . requirumubts Grube requirumubts requirumubts 211 of either Clear Clear either indicate indicate indicate illitary illitary illitary illitary illitary Tyx Tyx 1 ffailure ailure to the a the to meet failure failure meet 2752L specificatsipecioficatnion specification specification specification specification specification Federal Federal or Federal Specification IL I 2752L IL 2752L Specification 2752L Specification Specification results are manufacturer the lower na noge ver- LENE Deck circles circles The best work report her has curries out in VISUAL VISUAL OBSLEVATIONS AC 232002 Calsilite G.b. at 150097. excessively at 165001 Cracked warped and shrank h yle ... at 1000" Cracked on contact surface at 12000. Excessive shrinkage warpage and heavy cracks at 1300 Liret i f.b at 10004 Surface cidipped at 1200 aut karpage 1300. Softened ut 1056. karpage and shrinkag ... at 1756 out very soft and iriable inret . C.K. at 1000"T Surface chipped at 120 and 1300. Blue green color appeared at 150. 4.1 but soft at 1050. Very soft fragile at 1750 1170 Caltemy her and Old G.L. at age warpage and crucks at 1325 E xces iveExcessive surink- Super Such^'k O.K. at 15754. Excessive cracks plus some warpage at 1725 Bring and : ' 1.artnera C.L. at 1325 Excessive shrinkage warpage anc Creuns at 142 iri v^l^v^>l^>ttt tc.h. at 1170 harpec split cruches and rank at 1425 fitfzob~ sloi what what limit 1300 1300 EXCESSIVE 1/50 ^ ntikkajt at 122 just 6 rinnage , warpage warpage and craint over &