The Specification for Highway Works (SHW) in the UK is currently being amended to reflect the requirements of BS EN 13285:2003, Unbound mixtures - specification. This paper explains the requirements of the new Standard for UK users. It also explains the link with BS EN 13286, a series of standards detailing test methods for unbound and hydraulically bound mixtures. The changes support the construction industry's transition to the new BS EN standards for aggregates.
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机译：目前正在修改英国公路工程（SHW）规范，以反映BS EN 13285：2003，未结合的混合物的规范。本文解释了英国用户新标准的要求。它还解释了与BS EN 13286的链接，一系列标准，详细说明了未结合和液压混合物的试验方法。该更改支持建设行业的过渡到汇总的新BS标准。
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