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p . 0 1 <br /> N O V - � 0 - 9 z F R I 4 : 1 6 E R S T S I D E M R S O N R Y , <br /> . � �� �,, �'�� <br /> � �� �� �'� <br /> ������ ', <br /> FORRER � � <br /> ��Nousraies <br /> July 31, 1947 j <br /> I <br /> Laseside Masonry procSucts I <br /> P.O. Box 535 ' ' <br /> R�m�,�� SOasl:iagton 98052 � j <br /> Attention: Lyl• Rittar � <br /> Dear Lyle: <br /> Con#?rming oux phone ccnversntion, el:houqh TH8 DRY-BLOCKR MORT,AR <br /> ADMIY, does retazd Mhe eet and spaeci of sbr:ngth d�velopmsnt ia <br /> mortar, th� eured morta:- will develop more than tha minimum of ! <br /> 1800�gsi, aven tnouqh on_y 700 psi has bean achieved in s�ven ', <br /> days . ! <br /> Tests by The Naeionnl Concre:e Aiasor._y Association ehow�d �550 ! <br /> pai £or Type 9 mor�er (from lina-oa:aen:-san8 mix) . The slipht � <br /> lowering af co:np:easiv etrangth, compared to the standard Typ� S • <br /> seortar, i■ due to the hiqh�r nmount o! antrained air whan the <br /> admix is used, according to NCMA' s tiead of Rasearch, Ed Hedatrom. <br /> As you can see, Lyl�� according to �he ASTM Teate (rua by che <br /> NCtdA) , THE DRX-BLOCK 3YSTEtd provides not only exCellent kind <br /> driv�n rain-resis�ARC@i but also it increases bon4 strangth of <br /> mor:ar to bloait. Furth��, thousahds of buildinga built siace <br /> 19F10 using TH8 DRY-ELOCK 6XST�ld show how well aCcmpted this <br /> integral 4�eter-rs�e11a1L systeM has been. Sinqle wy�h concrate <br /> blocic ka11Qd buildinqs ot 19 s�_ories have uasd TKE SYST&t4. <br /> Lyle, if we caa p:oviQe furi:hes ir.=orrca�ion, pieas� noti£y us o! <br /> your needs . <br /> S�ncerely� <br /> TJGL� <br /> oe E. Rahn <br /> Technieal DiraCtor <br /> JEK/at <br /> Enc. <br /> cc : Nanny Helm <br /> 7221 W. PARKLAND CT, • P.O. BOX 23432 • MILWAUKEE,WI 53223 • (414)354-4400 <br /> n,eumse w�rsM1,�w.eoe.w,au.aK��oae w. noueron -z.oiuvea.�:.rncr+ror+.w•vua:auv:n.w..MonT�rx.ouweo . <br />