Document aJqn3QpqErYnevjpD9LokE6ER

WRG 001321 VERMICULHS INSTITUTE 25Ch ANNUAL MEETING CHANDLER, ARIZONA MARCH 1966 PLASTER COMMITTEE A. W, Dambroa, Chairman L. A. Barron J. H. Graar M. Malear R. B. Moran E. L. Parrlna D. M. Stewart oa o 1433,1 PLASTER COMMITTEE MEETING Chicago, Illinois January 25-26, 1965 Mada final ravlslons on 1965 Vamlcullca Institute "Tiro Resistance Ratings." Resume of additional tasting requirements to main tain a conpatitiva position. A. Two - 3 beam tests. B. Floor tests with new types of decking or reduced Mono-Kota thicknesses#. Discussion with Mr. Parks of Underwriters' Labo ratories, Inc', regarding proposad testing and anticipated results. Review of Vermiculita Institute Convention program. -2 COLUMN FIRE TEST Undarvrltara1 Laboratoriaa, Inc. March 26, 1965 A 14WF 228# colum procactad with 2" of Typo MK paaaad and will ba graacad a 4-hour rating. 1433rJ3 /'"N PIASTER COMMITTEE MEETING Point Clear, Alabama April 22, 1965 Thraa baam taat dataila vara finalized. Racoomandad two (2) aound absorption caata on pan joiat conatruction protactad with Typa MR. A 2-hour colum taat on a 14WF 228# column waa racoomandad. Oavalopamant of Typa MR-4 waa urgently racaeimended. A new floor taat on 1-1/2" decking with trench headera waa propoaad. Additional and probable future taating waa diacuaaad. -4 - 1433'4 COLUMN FIRS TEST Undarwrltara1 Laboratorlaa, Inc. June 29, 1965 A 14UF 22S# coluan protected with 7/8" Type MK paaaad, and la rated aa 3-hour protaction. An Interpolation for a reduced thickneaa on 4-hour coluana vaa aubaaquantly given. The new thickneaa la 1-14" for 14UF 228# coluana. -5- r 143315 BEAM TESTS Undarvritara1 Laboratories. Inc. July 30, 1963 An assaably Incorporating 3 baama with varioua thickneaaaa of Typa MR vaa taatad. A 2-hour baaa rating with 1/2" of Typa MR waa obtainad; plua data partinant Co futura tasting. 6 PIASTER CCMUTTEE MEETING Chicago, Illinois Octobor 27, 1965 1433 Pinal thicknaaaaa eo tha forthcoming 1-1/2" bland tast vara agraad upon. CraaC daal of Cba elms was spans in raviewing possibllieias for basic li^rovamant In tK-3. Initial stops for davalopaasnC of MSr4 wara lnselgaead. Tasting of coaposlts daslgn dock sections was recoaseadad. Discussion with Mr. Parks of Underwriters1 Laboratories, Inc. regarding tha status of taa^srature and point limit ations did not provide definitive answers. This matter will be pursued further. Various proposals for changing the marketing procedure of Type ME wara analysed. Nona, at the prasant time, wara recoammndad for approval or trial on a national level. - 7- BLEND FLOOR FIRE TEST Undarvrltara1 Laboratoriaa, Inc. Dacaaibar 29, 1965 An 1-1/2" bland floor ayataa protected with 3/8" MX on tha bottom of tha trough and flat plata aactlona 1/2" on tha aldaa and topa of flutaa vaa taatad Tha baam vaa protactad with 3/4" MX. Tha following ratinga wara obtained and will ba llatad aa Daalgn #248 2-hour (Baam 4-hour) Floor - 2-hour Baam - 4-hour s 1433'JS PARTIAL LIST OF FUTURE VERM1CULITE INSTITUTE PLASTER COMITTEE ACTIVITIES Raviaioo of Vaxnicullea Instltuta ? ira UmIiuw* Racings. 3 baam Case Co meaC temperature IlmicaCions. Exploratory and full seal* ease* of MK-4 Tases of cooposlea daslgn floor sacelons. Tascs of cooposiea daslgn floor and c011330alea baam assemblies. TasC of varnlcullea concrete, metal deck, Joists, and calling assembly, Bax (or square) column easelog. 9-