1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 618 Concrete Masonry UnitsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODU
2、CTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Concrete Masonry Units, UL 618 Ninth Edition, Dated February 27, 1995 Summary of Topics This revision to ANSI/UL 618 is being issued to reect the recent reaffirmation of UL 618 as an American National Standard. No changes ha
3、ve been made to the requirements within this standard. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date no
4、te indicating the date of publication or the date on which the changed requirement becomes effective. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwis
5、e without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, ind
6、irect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for a
7、ny damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable a
8、ttorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having
9、 future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. MAY 4, 2015 UL 618 tr1UL COPYRIGHTED MATERI
10、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 4, 2015 UL 618 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 27, 1995 (Title Page Reprinted: May 4, 2015) 1 UL 618 S
11、tandard for Concrete Masonry Units Previous numbered and unnumbered editions of standards covering this material predate 1922. First Edition November, 1938 Second Edition March, 1945 Third Edition July, 1949 Fourth Edition December, 1953 Fifth Edition August, 1958 Sixth Edition November, 1970 Sevent
12、h Edition July, 1975 Eighth Edition September, 1979 Ninth Edition February 27, 1995 This ANSI/UL Standard for Safety consists of the Ninth Edition including revisions through May 4, 2015. The most recent designation of ANSI/UL 618 as a Reaffirmed American National Standard (ANS) occurred on May 4, 2
13、015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Col
14、laborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole
15、and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 618-2010 (R2015)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 12, 2010 CONCRETE MASONRY UNITS - UL 618 2 No Text on This PageUL COPYRIGHTED MATERI
16、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 General 5 2.1 Components .5 2.2 Units of measurement .6 2.3 Undated references .6 CONSTRUCTION 3 General 6 4 Dimensions Minimum Face Shell and Web Thickness .6 4A Dimensions, Ceme
17、nt-Aggregate Proportions and Compressive Strength 6 5 Dimensions Minimum Equivalent Thickness and Approximate Face Shell Thickness .6B 6 Aggregates .8 7 Cement 8 8 Cement-Aggregate Proportion 8 PERFORMANCE 9 Strength Test .9 SHIPPING 10 General .9 FEBRUARY 12, 2010 CONCRETE MASONRY UNITS - UL 618 3U
18、L COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. DECEMBER 21, 2007 CONCRETE MASONRY UNITS - UL 618 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL
19、INTRODUCTION 1 Scope 1.1 These requirements cover concrete masonry units classied for use in re resistive walls in accordance with the conditions of acceptance of the Standard for Fire Tests of Building Construction and Materials, UL 263. 1.2 Concrete masonry units are classied as follows: a) 2-hour
20、 units are intended for use in re resistive walls having a rating of 2 hours or less. b) 3-hour units are intended for use in re resistive walls having a rating of 3 hours or less. c) 4-hour units are intended for use in re resistive walls having a rating of 4 hours or less. 1.3 A product that conta
21、ins features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of re, electric shock, or injury to persons shall be evaluated using the appropriate additional component and end-product requirements t
22、o determine that the level of safety as originally anticipated by the intent of this Standard is maintained. A product whose features, characteristics, components, materials, or systems conict with specic requirements or provisions of this standard shall not be judged to comply with this standard. W
23、here appropriate, revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this standard. 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a component of a product covered by this standard shall compl
24、y with the requirements for that component. 2.1.2 A component need not comply with a specic requirement that: a) Involves a feature or characteristic not needed in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.1.3 A
25、 component shall be used in accordance with its recognized rating established for the intended conditions of use. 2.1.4 Specic components are recognized as being incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited con
26、ditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions for which they have been recognized. AUGUST 18, 1999 CONCRETE MASONRY UNITS - UL 618 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMI
27、SSION FROM UL 2.2 Units of measurement 2.2.1 If a value for measurement is followed by a value in other units in parentheses, the second value may be only approximate. The rst stated value is the requirement. 2.3 Undated references 2.3.1 Any undated reference to a code or standard appearing in the r
28、equirements of this standard shall be interpreted as referring to the latest edition of that code or standard. CONSTRUCTION 3 General 3.1 A concrete masonry unit shall conform to the following dimensions: a) Width (or thickness as laid in a wall) shall be not less than 7-5/8 inches (194 mm). b) Heig
29、ht shall be not more than 8 inches (203 mm). c) Length shall be not more than 18 inches (457 mm). 3.2 Hollow concrete masonry units shall contain two or three rectangular or oval core holes. 3.3 The face shell thickness in a unit provided with ornamental facing shall be taken at the thinnest face sh
30、ell dimension. 4 Dimensions Minimum Face Shell and Web Thickness 4 deleted January 20, 1998 4A Dimensions, Cement-Aggregate Proportions and Compressive Strength 4A added January 20, 1998 4A.1 A concrete masonry unit produced from an aggregate in Table 4A.1 shall have a minimum face shell thickness a
31、nd a minimum web thickness as shown in Table 4A.2. AUGUST 18, 1999 CONCRETE MASONRY UNITS - UL 618 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Table 4A.1 Thickness, material and strength requirements Type of aggregate a Manufacturing pr
32、ocess Equivalent thickness b in. (mm) Cement to aggregate ratio maximum Minimum compressive strength, psi Hourly rating 2hr 3hr 4hr Average Individual Expanded clay, shale, slate Rotary kiln process 3.6 (91) 4.4 (112) 5.1 (136) 1:10.0 1000 800 Expanded clay, shale, slate Sintered process 4.2 (107) 4
33、.75 (121) 5.4 (137) 1:9.0 1000 800 Expanded slag Blast furnace 4.1 (104) 4.8 (122) 5.3 (135) 1:8.0 1000 800 Fly-ash Sintered process 4 (102) 4.7 (119) 5.2 (132) 1:8.5 1000 800 Fly-ash with sand Sintered process (y ash) 4.2 (107) 4.9 (124) 5.4 (137) 1:8.5 1000 800 Pumice 4.1 (104) 4.4 (112) 1:7.0 100
34、0 800 Natural, by-products with or without sand 4.2 (107) 5.5 (140) 1:7.0 700 600 Natural, by-products with or without sand 6.5 (165) 1:6.0 1800 1600 a Units made of a blend of aggregates shall meet the equivalent thickness and compressive strength requirements of each component of the blend, and al
35、so contain a cement to aggregate ratio of the component which requires the greater proportion of cement. b Equivalent thickness is dened as the average thickness of solid material in the wall and is represented by the formula: In which: T is the equivalent thickness in inches, V is the net volume (g
36、ross volume less volume of voids) in cubic inches, L is the length of block in inches, and H is the height of block in inches. Net volume (V) of the blocks is to be determined by a water displacement method of a number of blocks of each design. The blocks are to be soaked in water for 24 hours, remo
37、ved from the vat, surface water removed, and then immersed in water and the displacement determined. JANUARY 20, 1998 CONCRETE MASONRY UNITS - UL 618 6AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Table 4A.2 Minimum face shell and web thi
38、ckness Width, in. (mm) Face shell thickness, in. (mm) Web thickness, in. (mm) 7-5/8 (197) 1-1/4 (31.7) 1 (25.4) 9-5/8 (244) 1-3/8 (34.9) 1-1/8 (28.6) 11-5/8 (295) 1-1/2 (38.1) 1-1/8 (28.6) 4A.2 The cement-aggregate proportions shown in Table 4A.1 are specied in terms of volumes of cement to volumes
39、of combined dry-rodded ne and coarse aggregates (after mixture). 4A.3 The procedure in conducting tests for compressive strength is to be in accordance with Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units, ASTM C140. The compressive strength requirements speci
40、ed in Table 4A.1 are based on the gross cross sectional area of the unit as laid in a wall when tested not more than 28 days after manufacture. 4A.3 revised February 12, 2010 5 Dimensions Minimum Equivalent Thickness and Approximate Face Shell Thickness 5 deleted January 20, 1998 FEBRUARY 12, 2010 C
41、ONCRETE MASONRY UNITS - UL 618 6BUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 12, 2010 CONCRETE MASONRY UNITS - UL 618 7 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT
42、PERMISSION FROM UL 6 Aggregates 6.1 Concrete masonry units shall be made of ne and coarse natural, by-product, or processed aggregates which shall be obtained from sources providing uniformity in quality and kind. 6.2 Coarse natural aggregates, except pumice, shall not contain more than 15 percent f
43、ree crystalline silica (SiO 2 ) in the form of quartz, chert, or int as determined by petrographic (mineralogical) analysis, or not more than 65 percent by weight of siliceous material as determined chemically. 6.3 Cinders, when used as aggregate, shall be of the quality obtained from the combustion
44、 of coal. Their average combustible content, both ne and coarse aggregate, shall not exceed 35 percent by weight of the dried mixed aggregate. 6.4 Expanded clay, shale, or slate, ne and coarse, shall consist of particles resulting from the burning of crushed or uncrushed clay, shale, or slate by the
45、 rotary kiln or sintering processes. Rotary kiln processed aggregate shall consist of coated or uncoated particles and sintered processed aggregate shall consist of uncoated particles. The dry-rodded weight of the mixed aggregate (ne and coarse) shall be not less than 42 pounds per cubic foot (672 k
46、g/m 3 ) nor more than 72 pounds per cubic foot (1153 kg/m 3 ). 6.5 Expanded slag aggregates, ne and coarse, shall consist of blast furnace slag in the form of cellular particles appearing in color from white bluff to slate or dark gray. The dry-rodded weight of the mixed ne and coarse aggregate shal
47、l be not less than 35 pounds per cubic foot (560 kg/m 3 ) nor more than 70 pounds per cubic foot (1121 kg/m 3 ). 6.6 Pumice, ne and coarse, shall be in the form of porous particles, friable in character and predominantly light gray in color, with individual pieces varying from nearly white to slate.
48、 The dry-rodded weight of mixed ne and coarse aggregate shall be not less than 35 pounds per cubic foot (561 kg/m 3 ) nor more than 50 pounds per cubic foot (801 kg/m 3 ). 6.7 Fly ash aggregate shall be obtained from the burning of pulverized coal and formed into agglomerates by a sintering process.
49、 The dry-rodded unit weight of the y ash aggregate shall be not less than 50 pounds per cubic foot (801 kg/m 3 ) nor more than 70 pounds per cubic foot (1121 kg/m 3 ). When sand is mixed with y ash aggregate, the volume of sand shall not exceed 23 percent of the total volume, and the dry-rodded unit weight of the combined sand and y ash aggregate shall be not less than 50 pounds per cubic foot (801 kg/m 3 ) nor more than 78 pounds per cubic foot (1249 kg/m 3 )
