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. Ii.IVEITEJE ANIc ACOIISTICAL LA7130nan'onIns OF L1512 BATAVIA AVENUE IIT RESEARCH INSTITUTE 630232-0104 GENEVA, ILLINOIS 60134 FOUNDED191B8Y 3EUE31:003R,T WALLACE CLEMENT SABINE FOR: K-X Industries, Inc. Sound Transmission Loss Test RAC'"-TL98-195 ON: FASWALL° Permanent Insulating ' Wall Forms (WF) Wall Page I of 3 CONDUCTED: 10 September 1998 TEST METHOD Unless otherwise designated, the measurements reported below were made with all facilities and procedures in explicit conformity with the ASTM Designations E90-97 and E413-87, as well as other pertinent standards. Riverbank Acoustical Laboratories has been accredited by the U.S. Department of Commerce, National Institute of Standards and Technology (NIST) under the National Voluntary Laboratory Accreditation Program (NVLAP) for this test procedure. A description of the measuring technique is available separately. The microphone used was a Bruel & Kjaer serial number 951371. DESCRIPTION OF THE SPECIMEN The test specimen was designated by the manufacturer as a FASWALL° permanent insulating wall forms (WF) wall . The overall dimensions of the sample were nominally 2.74 m (108 in.) high by 4.27 m (168 in.) wide and 305 mm (12 in.) thick. The specimen was installed by workers of K-X Aggregate, Inc. directly into the laboratory's 2.74 m (9 ft) by 4.27 m (14 ft) wood-lined steel frame and was sealed on the periphery (both sides) with a dense mastic. The manufacturer's description of the specimen was as follows: The FASWALL" insulating permanent concrete forms (ICF) were manufactured in a block making machine using the K-X mineral processed wood fiber chips (K-X Aggregate) mixed with cement and fly ash. The wall forms (WF) were interlocked on the side with a female-male design to hold the WF in line. The WF were stacked dry without staggering them and no mortar was used. Three steel #4 rebars were inserted in the WF vertical cores and four horizontal rebars were spaced on 813 mm (32 in.) centers. The rebars were overlapped 305 mm (12 in.). The WF were filled with 3000 psi concrete that was mixed in a concrete mixer and filled into the cores with buckets. A stucco mix that consisted of 50% white sand, 40% portland cement and 10% lime was applied 3.2 mm (0.125 in.) to 4.8 mm (0.188 in.) in thickness on the outside of the wall assembly (noise source side). The interior side of the wall was finished with 16 mm (0.625 in.) Type X gypsum wallboard nailed directly to the WF wall assembly. The weight of the specimen as calculated was 5,543 kg (12,220 lbs) an average of 473.8 kg/m2 (97.0 lbs/ft2). The transmission area used in the calculations was 11.7 m2 (126 ft2). The source and receiving room temperatures at the time of the test were 22°C (72±2°F) and 62±2% relative humidity. THE RESULTS REPORTED ABOVE APPLY ONLY TO THE SPEWIC SAMPLE%MUTTER FOR MEASUREMENT.NO RESPONSIMIM IS ASSUMED FOR PERFORMANCE OF NIT OMER SPEGNER. n ACCREDITED BY DEPARTMENT OF COMMERCE, NATIONAL VOLUNTARY LABORATORY C IN V I A Y ACCREDITATION PROGRAM FOR SELECTED TEST METHODS FOR ACOUSTICS. Wr THE LABORATORY'S ACCREDITATION OR ANY OF ITS TEST REPORTS IN NO WAY CONSTITUTES OR IMPLIES PRODUCT CERTIFICATION,APPROVAL,OR ENDORSEMENT BY NIST.