石灰试验与检测Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.德修身、技立业任务目标： l了解石膏和石灰的原材料、生产、 凝结硬化及质量要求，掌握其性质 与应用。 l具备检测石灰质量的能力，并能 出具试验报告单。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.石灰的技术性质及应用一石灰性能试验与检测二石膏的技术性质及应用三主 要 内 容Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.石灰的生产： 德修身、技立业煅烧块状生石灰的特点：CaO质量几乎下降一半,但体积缩小很少,故优质生石灰应为白色疏松结构。欠火石灰：温度过低/时间不够/石灰石不能充分烧透,存在硬心过火石灰：温度过高/时间过长/颜色深（褐、黑） 块状生石灰100 5644注意过火石灰可以使用，但应陈伏半个月.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.石灰分类2.石灰的存在形成v 块状生石灰 煅烧直接获得v 生石灰粉 块状生石灰磨细v 消石灰粉 生石灰消解v 石灰膏/乳 生石灰+过量水钙质石灰（MgO5）镁质石灰（MgO5）特点：熟化较慢，但硬化强度稍高。1.按MgO含量分类CaOCa(OH)2Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.石灰的熟化与硬化1. 石灰的熟化（消化）CaO + H2O Ca(OH)2 + Q（64.9KJ）注意： 消解安全 措施：分层消解Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.硬化1）干燥结晶硬化： 水分蒸发，氢氧化钙过饱和析晶结晶强度产生2种强度2）碳化： Ca（OH）2CO2H2O CaCO3 碳化强度水分蒸发，产生毛细管压力，压密石 灰粒子附加强度Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.石灰的生产、消解、硬化小结过火石灰存在,陈伏半个月左右常见实例：陈伏时间不够，引起房屋抹面层凸起开裂消解为石灰膏/乳的作用水层隔绝空气，避免发生碳化消解安全分层消解，热量较快散释Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.石灰的技术要求 根据我国建材行业标准JC/T479-92建筑生石灰与JC/T480-92建筑生石灰粉、JC/T481-92建筑消石灰粉的规定，按照技术指标分为优等品、一等品、合格品三个等级。生石灰、生石灰粉及消石灰的技术指标见表4.1、2.2、2.3。 建筑工程中所使用的石灰通常分为三个品种：建筑生石灰、建筑生石灰粉和建筑消石灰粉。 桥涵用石灰技术标准应满足建筑石灰的技术要求。 路面基层用石灰技术标准应满足JTJ034-2000公路路面基层施工技术规范要求，技术标准见表2.4。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.表2.1 生石灰的技术标准 项 目钙质生石灰 镁质生石灰 优等品一等品合格品优等品一等品合格品CaO+MgO含量/% 908580858075C02含量/% 5796810未消化残渣含量（5mm圆孔筛余）/% 5101551015产浆量/Lkg-1 2.82.32.02.82.32.0Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.表2.2 生石灰粉的技术标准项 目钙质生石灰 镁质生石灰 优等品一等品合格品优等品一等品合格品CaO+MgO含量/% 858075807570C02含量/% 791181012细 度0.90mm筛筛余/%0.20.51.50.20.51.50.125mm筛筛余/%7.012.018.07.012.018.0Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.表2.3 消石灰粉的技术标准项 目钙质消石灰粉 镁质消石灰粉 白云石消石灰粉优等 品一等 品合格 品优等 品一等 品合格 品优等 品一等 品合格 品 CaO+MgO含量/% 706560656055656055游离水/%0.4体积安定性合格合格合格合格合格合格细 度0.90mm筛 筛余/%000.5000.5000.50.125mm筛 筛余%310153101531015Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.表2.4 路面基层用石灰粉的技术标准项 目钙质生石灰镁质生石灰 钙质消石灰镁质消石灰 等 级 CaO+MgO含量/% 858075807570656055605550未消化残渣含量/5mm圆孔筛余/% 71117101420含水量/% 444444 细 度0.71mm筛筛余 /%11110.125mm筛筛余 %13201320MgO含量/%5544Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.工程实例某工地要使用一种生石灰粉，现取试样，应如何判该石灰的品质？1.检测石灰中CaO和MgO的含量,二氧化碳的含量,细度。2.根据MgO含量，判定该石灰的类别(属钙质/镁质石灰)3.根据表2.2判定该石灰的等级。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-201