AASHTO M 261-1996 Standard Specification for Rib-Tread Standard Tire for Special-Purpose Pavement Frictional-Property Tests《铺砌路面防滑试验用棱纹轮胎的标准规范》.pdf
《AASHTO M 261-1996 Standard Specification for Rib-Tread Standard Tire for Special-Purpose Pavement Frictional-Property Tests《铺砌路面防滑试验用棱纹轮胎的标准规范》.pdf》由会员分享,可在线阅读,更多相关《AASHTO M 261-1996 Standard Specification for Rib-Tread Standard Tire for Special-Purpose Pavement Frictional-Property Tests《铺砌路面防滑试验用棱纹轮胎的标准规范》.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Standard Specification for Rib-Tread Standard Tire for Special-Purpose Pavement Frictional-Property Tests AASHTO Designation: M 261-96 (2013)1ASTM Designation: E 501-08 American Association of State Highway and Transportation Officials 444 North Capitol Street NW, Suite 249 Washington, D.C. 20001TS-
2、5a M 261-1 AASHTO Standard Specification for Rib-Tread Standard Tire for Special-Purpose Pavement Frictional-Property Tests AASHTO Designation: M 261-96 (2013)1ASTM Designation: E 501-08 1. SCOPE 1.1. This specification covers the general requirements for the standard rib tire for pavement friction
3、testing. The tire covered by this specification is only for use in evaluation of tire-pavement friction. 1.2. Terminology in this specification is consistent with ASTM E 867. 1.3. The values stated in SI units are to be regarded as the standard. 1.4. This standard may involve hazardous materials, op
4、erations, and equipment. This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the user of this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prio
5、r to use. 2. REFERENCED DOCUMENTS 2.1. AASHTO Standard: T 242, Frictional Properties of Paved Surfaces Using a Full-Scale Tire 2.2. ASTM Standards: D 297, Standard Test Methods for Rubber ProductsChemical Analysis D 412, Standard Test Methods for Vulcanized Rubber and Thermoplastic ElastomersTension
6、 D 1765, Standard Classification System for Carbon Blacks Used in Rubber Products D 2240, Standard Test Method for Rubber PropertyDurometer Hardness D 3182, Standard Practice for RubberMaterials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets E 501,
7、Standard Specification for Standard Rib Tire for Pavement Skid-Resistance Tests E 867, Standard Terminology Relating to Vehicle-Pavement Systems 3. MATERIALS AND MANUFACTURE 3.1. The individual standard tires shall conform to the design standards of Section 6. Dimensions, masses, and permissible var
8、iations are given in Section 6 and in Figure 1. 2014 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-5a M 261-2 AASHTO Figure 1Tire Section, Including Inflated Tire Dimensions 3.2. Tread compounding, fabri
9、c processing, and all steps in tire manufacturing shall be certified to ensure that the specifications are met. 3.3. A small raised guideline shall be molded on the tire shoulder area to provide a rapid visual check as to whether the maximum wear level for testing has been reached. Tires should be r
10、emoved from service as recommended in Section 11.5. The marking on the tire should include the following information: G78-15, Standard Pavement Test TireNot for General Highway Use, ASTM E 501, (Manufacturers name or trademark), Directional arrow on side of tire, and Rim: 15 6JJ. 2014 by the America
11、n Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-5a M 261-3 AASHTO 4. MATERIAL REQUIREMENTS 4.1. The compounding requirements for the tread compound are given in Table 1. Table 1Compounding of Tread RubberaMaterial Parts
12、 per Hundred of Rubber (PPHR) SBR 1712b89.38 BR-1208c 35.00 N339d75.00 High-aromatic oil 22.12 Zinc oxide 3.00 Stearic acid 2.00 6PPDe2.00 Paraffin wax 2.00 Sulfur 1.80 TBBSf1.10 DPGg0.10 aASTM D 3182 bStyrene-butadiene rubber (23.5 percent styrene) 37.5 parts of high-aromatic oil cHigh cis-polybuta
13、diene dN339 Carbon Black. See ASTM D 1765. eDimethyl butylphenyl phenylenediamine fButyl benzothiazole sulfenamide g Diphenyl guanidine 4.2. FabricThe fabric shall be polyester body or carcass plies and fiberglass belt plies. Note 1Certain proprietary products have been specified since exact duplica
14、tion of properties of the finished tire may not be achieved with other similar products. This inclusion does not in any way comprise a recommendation for these proprietary products or against similar products of other manufacturers; nor does it imply any superiority over any such similar products. 5
15、. PHYSICAL REQUIREMENTS 5.1. The physical and mechanical test requirements are given in Table 2. Table 2Physical Requirements of Tread Compound Tensile sheet cure at 150C (302F), min 30 300% modulus, MPa (psi) (ASTM D 412) 6.9 1.4 (1000 200) Tire tread durometer (ASTM D 2240) 58 2 Specific gravity (
16、ASTM 297) 1.13 0.02 Tensile strength, min, MPa (psi) (ASTM D 412) 13.8 (2000) Elongation, min, % (ASTM D 412) 500 6. DIMENSIONS, MASSES, AND PERMISSIBLE VARIATIONS 6.1. GeneralDetails of dimensions are listed as follow and are shown in Figure 1. Where tolerances are not specified, tire dimensions ar
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