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【2017年整理】水泥混凝土原材要求.ppt

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【2017年整理】水泥混凝土原材要求

* Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 集料的检验方法 1.集料的概念 集料(又称骨料),是指在混合料中起骨架和填充作用的颗粒材料。集料是混凝土的主要组成材料之一,包括岩石经天然风化而成的砾石和砂等,以及由岩石经轧制而成的各种尺寸的碎石、机制砂、石屑等。 2.集料的分类 根据粒径大小不同,一般可将集料分为细集料和粗集料两种。根据集料来源不同,又可将集料分为天然集料和人工集料。天然集料包括砾石、天然砂(山砂、河砂、海砂等),人工集料包括碎石、人工砂、石屑等。 * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. (1)仪器设备 3)沸煮箱:箱的内层由不易腐蚀的金属材料制成,能在30min±5min内将箱内试验用水由室温升至沸腾并可保持沸腾状态3h以上,整个过程不需补充水量。 * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 4)雷氏夹膨胀仪:由铜质材料制成。当一根指针的根部先悬挂在一根金属丝或尼龙丝上,

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