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现行 ASTM D7239-13(2023)
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Standard Specification for Hybrid Geosynthetic Paving Mat for Highway Applications 公路用混合土工合成材料铺路垫标准规范
发布日期: 2023-01-01
1.1 这是一份涵盖混合土工合成材料铺筑垫的材料规范,通常用于但不限于接缝和局部(局部)路面修复;以及用于路缘石到路缘石覆盖的铺路垫,为路面结构提供防潮层,并延缓沥青覆盖层中的反射裂缝。它们通常是无纺结构。这是一份材料采购规范,建议对使用进行设计审查。 1.2 这不是施工或设计规范。 本规范基于混合土工合成材料铺筑垫在安装应力下的生存能力。 1.3 为了确定是否符合本规范,长度或面积值应四舍五入至0.1 m或0.1 m 2. 分别地根据实践中的舍入方法,质量值应舍入到最接近的克,力值应舍入为最接近的牛顿,体积值应舍入至最接近的0.01 L 第29页 . 1.4 本标准的文本引用了提供说明材料的注释和脚注。 这些注释和脚注(不包括表中的注释和脚注)不应视为本标准的要求。 1.5 以国际单位制表示的值应视为标准值。本标准不包括其他测量单位。 1.6 本标准并不旨在解决与其使用相关的所有安全问题(如有)。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践,并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒(TBT)委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。
1.1 This is a material specification covering hybrid geosynthetic paving mats typically used for, but not limited to, use in joint and localized (spot) pavement repairs; and paving mats intended for curb-to-curb coverage to provide a moisture barrier for the pavement structure and retard reflective cracking in bituminous overlays. They are typically nonwoven in construction. This is a material purchasing specification, and design review of use is recommended. 1.2 This is not a construction or design specification. This specification is based on hybrid geosynthetic paving mat survivability from installation stresses. 1.3 For purposes of determining conformance to this specification, values for length or area shall be rounded to the nearest 0.1 m or 0.1 m 2 , respectively. Values for mass shall be rounded to the nearest gram, and for force to the nearest Newton, and volume to the nearest 0.01 L, in accordance with the rounding method in Practice E29 . 1.4 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables) shall not be considered as requirements of the standard. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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归口单位: D35.06
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