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西北干寒地区高性能混凝土性能与配制技术
$38.24
第1章 西北地区气候环境与混凝土原材料概况 1.1 西北地区地形地貌和气候特征 1.1.1 所处地理位置 1.1.2 西北地区地形地貌和气象条件 1.2 西北地区高性能混凝土面临的问题及研究的意义和目的 1.2.1 干寒地区高性能混凝土研究现状 1.2.2 干寒地区高性能混凝土面临的问题 1.3 针对高性能混凝土面临的技术问题对应采取的解决方法 第2章 干寒地区高性能混凝土配合比设计 2.1 高性能混凝土配合比设计影响因素 2.2 配合比参数与技术指标 2.3 高性能混凝土配合比设计步骤 2.3.1 高性能混凝土指导性配合比试验方案 2.3.2 高性能混凝土配合比设计 2.3.3 指导性配合比 2.4 高性能混凝土试验与调试 第3章 大温差条件下高性能混凝土性能与配制技术 3.1 试验用原材料情况 3.1.1 试验用原材料性能 3.1.2 优化掺和料混凝土孔结构与耐久性关系的研究 3.1.3 粉煤灰、矿渣粉掺和料优化试验 3.1.4 结果分析及结论 3.2 卵石、碎石、碎卵石破碎及应用 3.2.1 碎卵石破碎现场实地调研 3.2.2 破碎面机理分析 3.2.3 试验设计 3.2.4 试验用原材料 3.2.5 卵石、碎石、碎卵石配制混凝土的性能对比 3.2.6 碎卵石的破碎面对混凝土性能的影响 3.2.7 粗集料对混凝土抗裂性能的影响 3.3 机制砂对高性能混凝土性能的影响 3.3.1 细集料的选用与技术要求 3.3.2 性能不良的砂对混凝土性能的影响 3.3.3 试验设计 3.3.4 试验用原材料 3.3.5 砂的特性对混凝土性能的影响 3.3.6 砂率变化对混凝土性能的影响 3.3.7 调整砂的级配 3.3.8 试验结论 3.4 复配外加剂对高性能混凝土性能的影响 3.4.1 试验方法及相应的混凝土配合比 3.4.2 试验结果分析 第4章 低温条件下混凝土性能及强度增长机理研究 4.1 主要技术指标及试验方法 4.1.1 低温早强耐久混凝土研究的必要性 4.1.2 研究内容及主要技术指标 4.1.3 试验方法及情况介绍 4.1.4 技术路线 4.2 试验用原材料情况 4.2.1 水泥 4.2.2 集料 4.3 低温下复合外加剂的研制 4.3.1 低温早强耐久混凝土复合外加剂配制设想 4.3.2 正交设计确定低温早强耐久混凝土系列复合外加剂 4.3.3 低温早强耐久混凝土复合外加剂特点介绍 4.4 低负温下水泥水化机理 4.5 正负变温情况下高性能混凝土配合比设计 4.5.1 正负变温情况下耐久混凝土配合比设计步骤 4.5.2 正负变温情况下耐久混凝土初步配合比的确定 4.6 正负变温情况下耐久混凝土物理力学性能试验 4.6.1 —5~20℃正负变温情况下耐久混凝土物理力学性能试验 4.6.2 —10~20℃正负变温情况下耐久混凝土物理力学性能试验 4.7 正负变温情况下混凝土耐久性试验 4.7.1 混凝土抗冻融破坏性能 4.7.2 混凝土耐硫酸盐腐蚀性 4.7.3 混凝土钢筋阻锈性能 4.7.4 混凝土抗渗性 4.7.5 混凝土氯离子渗透性 4.8 负温情况下耐久性混凝土配合比设计 4.8.1 负温情况下耐久性混凝初步配合比的确定 4.8.2 负温情况下耐久性混凝配合比的试配、调整与确定 4.9 负温情况下耐久混凝土物理力学性能试验 4.9.1 —2℃环境下耐久混凝土物理力学性能试验 4.9.2 —5℃环境下耐久混凝土物理力学性能试验 4.10 负温情况下混凝土耐久性试验 4.10.1 混凝土抗冻融破坏性能 4.10.2 混凝土耐硫酸盐腐蚀性 4.10.3 混凝土钢筋阻锈性能 4.10.4 混凝土抗渗性 4.10.5 混凝土氯离子渗透性 4.11 复合外加剂在钢纤维混凝土中的应用 4.11.1 未掺复合外加剂的钢纤维混凝土的性能 4.11.2 复合外加剂对钢纤维混凝土性能的影响 4.12 低温下高性能混凝土施工技术 4.12.1 一般规定 4.12.2 混凝土的配制、搅拌和运输 4.12.3 混凝土的浇筑 4.12.4 混凝土的养护与拆模 4.12.5 混凝土的质量检验 4.13 低温早强耐久混凝土有关耐久性管理的建议 4.14 低负温下高性能混凝土现场工程应用实例 4.14.1 青藏线昆仑山隧道模筑混凝土 4.14.2 玉树混凝土 第5章 腐蚀条件下高性能混凝土性能与配制技术 5.1 影响混凝土耐腐蚀性能的主要因素 5.2 提高混凝土抗盐腐蚀性能的措施 5.3 试验用原材料 5.4 试验设计 5.4.1 试验目的 5.4.2 试验方案 5.5 矿物掺和料对耐久性混凝土碱一集料反应抑制效果 5.6 矿物掺和料对混凝土耐久性影响研究 5.7 单一因素作用下对混凝土腐蚀性的影响 5.7.1 不同腐蚀方式对混凝土抗盐蚀性的影响 5.7.2 不同水胶比基准混凝土的抗盐蚀性能 5.7.3 引气剂对混凝土抗盐蚀性的影响 5.7.4 掺和料对混凝土抗盐蚀性的影响 5.8 耦合作用下对混凝土腐蚀性的影响 5.8.1 掺和料和引气剂对混凝土抗盐蚀性的影响 5.8.2 硫酸盐、镁盐复合溶液侵蚀机理分析 5.9 孔结构对渗透性和抗盐蚀性能的影响 5.9.1 水胶比与混凝土孔结构和抗盐蚀性能的关系 5.9.2 掺和料混凝土与孔结构和抗盐蚀性能的关系 5.9.3 引气剂混凝土与孔结构和抗盐蚀性能的关系 5.9.4 掺掺和料和引气剂混凝土与孔结构和抗盐蚀性能的关系 5.10 实际工程实践 5.10.1 实际地段的土壤化学成分分析 5.10.2 盐渍土对混凝土的侵蚀试验 5.10.3 结论 第6章 大风条件下高性能混凝土性能与配制技术 6.1 试验特点及耐磨性评定指标 6.2 混凝土的耐磨性机理 6.3 提高混凝土耐磨性的原理及措施 6.4 水胶比对混凝土耐磨性的影响 6.5 通过优化掺和料提高混凝土的耐磨性 6.6 通过改善养护方式提高混凝土的耐磨性 6.7 通过涂装防护材料提高混凝土的耐磨性 6.7.1 涂装防护材料提出的背景 6.7.2 应用涂装防护材料的目的 6.7.3 涂装防护材料试验及结果分析 第7章 干旱条件下高性能混凝土养护技术及应用 7.1 混凝土养护的重要性 7.2 养护方式的数值计算分析 7.2.1 未加保温材料时有限元数值计算模型分析 7.2.2 加2cm厚保温材料时有限元数值计算模型分析 7.2.3 加3cm厚保温材料时有限元数值计算模型分析 7.3 室内养护方式对比试验研究 7.3.1 试验设计 7.3.2 相对湿度50%、20℃条件下养护方式试验结果与分析 7.3.3 相对湿度50%,—5~15℃条件下养护方式试验结果与分析 7.3.4 相对湿度50%,—10~20℃条件下养护方式试验结果与分析 7.3.5 不同养护方式下混凝土抗裂性能试验 7.3.6 试验结论 7.4 干旱环境下高性能混凝土施工技术 7.5 干旱条件下高性能混凝土养护工程应用实例 7.5.1 试验设计 7.5.2 试验结果与分析 7.5.3 试验结论 附表一 高性能耐久性混凝土原材料监控流程 附表二 高性能耐久性混凝土工程施工前期监控流程 附表三 高性能耐久性混凝土施工试配监控流程 附表四 高性能耐久性混凝土工程质量控制流程 参考文献
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