Document MMpr0akDEYOxxpgLZ1RpaO8eV

INTER OFFICE CORRESPONDENCE M. H. DETRICK COMPANY LTD. asb/zl SUBJECT: TO: Sr. H.E. Lewis, Messrs. M.H. Detrick Company, 111 T. Washington Street, CHICAGO 2. 111., U.5.A. from London d*tc 9th January, 1959* officc Dear Earry, We are sending direct to Aurora samples of our latest Decrete and Casing Cement. Would you kindly arrange to have these samples tested and let us have your eoinaents. Our manufacturers have had lengthy negotiations with the Cement Marketing Company and have at last decided that the British equivalents to your cements are "Ferrocrete" for "High Early" and'Talcrete" Masonry Cement for Masonry Cement. Unfortunately, there is no equivalent available for Pearlite Aggregate, and our manufacturers have used expanded Vermiculite in both the Decrete and Casing Cement samples. Tnen using these materials the same degree of set was obtained in seven hours as obtained in sixteen hours when using ordinary Portland Cement. In both cases the final dried out density is approximately 36 lbs per cubic foot. With beat wishes for 1959 to you and your colleagues in the Insulation Division. Yours very truly, tterley. i cc - surface mail. " * <