中文摘要
在现代工程施工质量的管理之中，混凝土施工质量控制是尤为重要的，在众多的施工过程之中，都不可避免的需要涉及到混凝土的使用。但是，混凝土施工的影响因素较多，其中，季节的变化也对混凝土施工质量起到了一定的影响，且对施工质量造成了一些影响。因此，混凝土冬季施工，其质量控制是关键。由于冬季施工中，质量受气温等条件的影响，其施工难度和要求更高。大面积混凝土冬季施工中，防冻保温是关键，选择原材料也要充分考虑冬季的气温特点，选择相应的材料。本文从混凝土冬季施工的特点入手，分析了由于施工条件及环境导致的冬季混凝土施工质量问题，以及冬季施工混凝土质量事故特点，结合上述问题和潜在隐患，提出了混凝土冬季施工的计划和准备时性强。并且，详细解析了混凝土冬季施工的问题，如：编制冬季施工方案、外加剂材料的准备、技术培训、施工现场的准备工作、冬季施工计划管理等。最终，归纳和总结了上述问题，提出了混凝土冬季施工质量控制，即：混凝土原材料准备和配合比设计、混凝土的拌制、混凝土的运输和浇筑。探讨大面积混凝土冬季施工中的质量控制措施，结合混凝土原材料选备，讨论确保质量的控制方法，为今后的混凝土冬季施工质量控制提供参考。
关键词：混凝土；冬季施工；质量控制；措施；防冻；保温
Abstract
In the construction of modern engineering quality management, concrete construction quality control is particularly important, in many of the construction process, are inevitably involved in the use of concrete. However, the impact of concrete construction factors are more, of which seasonal changes in the quality of concrete construction has played a certain impact, and the construction quality caused some impact. Therefore, the construction of concrete in winter, its quality control is the key. As the winter construction, the quality of the conditions affected by the temperature, the difficulty of its construction and higher requirements. Large-scale concrete winter construction, antifreeze insulation is the key, the choice of raw materials should also take full account of the characteristics of the winter temperature, select the appropriate material. Based on the characteristics of concrete construction in winter, this paper analyzes the characteristics of winter concrete construction due to construction conditions and environment, and the characteristics of concrete quality accidents in winter. Combined with the above problems and potential problems, this paper puts forward the plan and preparation time of concrete in winter Strong. In addition, detailed analysis of the concrete winter construction problems, such as: preparation of the winter construction program, admixture of material preparation, technical training, construction site preparation work, winter construction planning management. Finally, the above problems are summarized and summarized, and the construction quality control of concrete in winter is put forward, namely: concrete raw material preparation and mix design, concrete mixing, concrete transportation and pouring. This paper discusses the quality control measures in the construction of large area concrete in winter, and discusses the quality control method in combination with the selection of concrete raw materials to provide reference for future concrete construction quality control in winter.
Keyword: concrete； winter construction； quality control； the measure； antifreeze； heat preservation.
目录
第1章 混凝土冬季施工的概述…………………………………………………………………… 7
1.1 混凝土冬季施工的特点…………………………………………………………………….. 7
1.2 混凝土冬季施工的问题……………………………………………………………………… 7
1.2.1 编制冬季施工方案…………………………………………………………………… 7
1.2.2 外加剂材料的准备…………………………………………………………………… 8
1.2.3 技术培训…………………………………………………………………………………. 8
1.2.4 施工现场的准备工作……………………………………………………………….. 8
1.2.5 冬季施工计划管理…………………………………………………………………… 8
第2章 混凝土冬季施工质量控制………………………….. 9
2.1 混凝土原材料准备和配合比设计……………………………………………………….. 9
2.1.1 水泥的强度和体积安定性直接影响混凝土的质量…………………….. 9
2.1.2 混凝土所用的骨料必须清洁…………………………………………………….. 9
2.1.3 拌合水…………………………………………………………………………………… 10
2.1.4 外加剂…………………………………………………………………………………… 10
2.1.5原材料的保温…………………………………………………………………………. 10
2.1.6 混凝土配合比设计…………………………………………………………………. 10
2.2 混凝土的拌制………………………………………………………………………………….. 11
2.2.1 施工前的准备………………………………………………………………………… 11
2.2.2 模板工程质量控制…………………………………………………………………. 11
2.2.3 混凝土的拌制………………………………………………………………………… 12
3.2.3混凝土拌和质量控制要点……………………………………………………….. 12
2.3 混凝土的运输和浇筑……………………………………………………………………….. 12
2.3.1 混凝土运输过程中注意事项…………………………………………………… 12
2.3.2 混凝土的浇筑………………………………………………………………………… 13
2.3.3 混凝土的养护……………………………………………………………………….. 14
2.3.4 拆模………………………………………………………………………………………. 14
第3章 案例分析 ………………………………………………………………………………………. 14
第4章 结束语………………………………………. 15
参考文献…………………………………………… 16
致 谢……………………………………………. 17
