石子含泥量标准？-法律综合法律援助-法律咨询免费平台-国际律师联盟

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问题	石子含泥量标准？
释义	律师分析：强度等级为M2.5以上的砌筑砂浆用砂的含泥量不应超过5%；强度等级为M2.5的水泥混合砂浆用砂的含泥量应不大于10%；防水砂浆用砂的含泥量不应大于3%。对有抗冻、抗渗或其他特殊要求的混凝土用砂，其含泥量不应大于3%；对C10和低于C10的混凝土用碎石或卵石，其含泥量可放宽到2.5%。【法律依据】：《GB/T14685-2011建设用碎石、卵石》 1类石0.5%、2类石1.0%、3类石1.5%.超过范围不合格。
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