发布时间 : 星期六 文章特细砂配置砂浆实验研究更新完毕开始阅读
目 录
摘 要............................................................. 1 ABSTRACT .......................................................... 2 1 前 言 ........................................................... 3 2砂浆： .......................................................... 6 2.1砂浆的分类： ................................................... 6 2.2砂浆的技术性质 ................................................. 7 2.3砌筑砂浆 ....................................................... 7 3.特细砂 .......................................................... 9 3.1特细砂进展情况及研究意义 ........................................ 9 3.2项目可行性分析 ................................................ 10 4特细砂原材料与试验方法 ........................................... 12 4.1 实验技术及材料要求 ............................................ 12 4.2 技术条件 ..................................................... 12 4.3 材料要求 ..................................................... 13 4.4试件的养护条件和测定值 ......................................... 14 5实验过程、结果 .................................................. 15 5.1 特细砂中砂物理性能实验(用以测定砂的颗粒级配及粗细程度) ............ 15 5.1.1特细砂中砂筛分试验 ......................................... 15 5.1.2特细砂中砂的堆积密度试验 .................................... 17 5.2砂浆试验 ...................................................... 17 5.2.1砂浆拌合物的试验室拌制 ...................................... 17 5.2.2砂浆沉入度试验 ............................................. 18 5.2.3试件制作及养护 ............................................. 18 5.2.4砂浆立方体抗压强度试验 ...................................... 19 5.3砂的种类对砂浆性能的影响 ....................................... 19
5.4灰砂比对砂浆性能的影响 ......................................... 20 6结论、展望 ...................................................... 21 6.1结论 ......................................................... 21 6.2展望 ......................................................... 21 参考文献 ......................................................... 23 致 谢 ............................................. 错误！未定义书签。
摘 要
为用特细砂取代中砂配制砂浆试块，研究了砂浆配合比的砂的种类，水泥品种，灰砂比和粉煤灰等
因素对特细砂砂浆的性能和强度的影响。结果表明：用特细砂这种资源可以配制出符合工作性能和强度要求的特细砂砂浆，此研究成果可为特细砂配制砂浆相关规范的编写和工程应用提供建议与数据参考。现在，中砂在建筑行业占有垄断地位，不过部分地区中砂资源极度匮乏，急需寻找能够代替中砂的另外一种砂石。在这种大趋势下，特细砂分布广，可用性强的特点被越来越多的人所熟知。现在特细砂已广泛应用在建筑、桥梁、水利水电工程等。本文通过试验研究，配制出符合建设工程使用要求的特细砂砂浆，将会减少资源浪费，降低工程造价，为本地的建设创造更多的经济效益。结果表明特细砂砂浆的性能和中砂砂浆的性能基本一致。然而，优质的天然中砂资源越来越少与建筑业的蓬勃发展的矛盾日益突出。如何就地取材、尽可能降低混凝十生产成本为基本原则。开发利用丰富的特细砂资源并将其应用于具体工程实践，从可持续发展的角度看有着深远的现实意义、社会意义和应用价值。
关键词 ： 特细砂 ；中砂 ； 抗压强度 ；灰砂比； 水灰比
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Abstract
In order to use the special fine sand to replace sand tomortar block ，studiedSand type，cement varieties，
cement sand ratio, Fly ash and so on other factors of the special fine mortar influenced on the workability and strength of the super-fine.The results show that the resource of the super-fine mortar can be configured to meet the work performance and strength requirements of the super-fine mortar，cube compressive strength of the super-fine mortar have the significant linear correlation，the different control slump value to strength have different intensity effects. This research can be provided advice and data reference for the related preparation specification and engineering applications of the ultra-fine sand configured for concrete.. Now, coarse sand occupies a monopoly position in the construction industry, but extremely deficient in coarse sand resources in some areas, so it is needed to look for another kind of sand to replace the coarse sand. In this tendency, the feature of wide distribution, usability strong characteristic in fine sand is more and more widely known. Now fine sand is widely used in buildings, Bridges, water conservancy and hydropower engineering, etc. Through experimental research, preparation of construction requirements to meet the special sand mortar, will reduce the waste of resources, reduce construction costs, local building and create more economic benefits. By contrast, the performance of extra fine sand and mortar sand mortar performance in basically the same. However, the quality of natural resources, less and less in the sand and the construction boom have become increasingly prominent. How to make the best possible at the lowest production cost coagulation ten basic principles. Development and utilization of the rich resources of ultra-fine sand and applied to engineering practice, from the perspective of sustainable development has far-reaching practical significance, social significance and value.
Keywords：Fine sand; coarse sand; Compressive streghth; Gray sand ratio; Water-cement ratio
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