紧密堆积混凝土配合比模型的建立论文-（毕业论文设计）.docVIP

安徽建筑工业学院本科生毕业论文 紧密堆积混凝土配合比模型的建立 PAGE 34 PAGE 35 摘要 混凝土性能与其配合比密切相关。近些年来，水泥混凝土的流动性和耐久性受到格外重视，尤其在配制高流动性和自密实性等高性能混凝土时就更加重要。普通混凝土配合比设计由于水泥用量较大，从而导致混凝土中水泥浆体出现干缩龟裂等耐久性不良问题。提高混凝土等级节能、节材成为一种发展趋势，而混凝土等级愈高，节约水泥的潜力愈大。从集料最紧密堆积、耐久性和孔结构，水泥石一粗集料高黏接强度诸方面整合其最佳结构模型。进一步通过试验，综合原材料择优、集料级配，“双掺”技术，掺合料强度激发剂，水泥强度富余系数利用等因素，确定实现上述目标的技术路线，以便于工艺过程实施。 关键词： 混凝土结构模型；最紧密堆积；“双掺”技术；激发剂 . ABSTRACT Concrete is closely related to its mix. In recent years, cement, mobility and durability of concrete has received special attention, especially in the preparation of high liquidity and high-performance self-compacting concrete and so when more important. Ordinary concrete mix design as the larger amount of cement, resulting in concrete and other cement paste will shrink and cracks problem of poor durability.It is a kind of developing trend that improving the degree of concrete save resources and cut down materia1．However the higher of concrete degree，the the bigger ofpotential saving concrete．From the compactest accumlative permanent stability and hole structure，high adhesive strength ofconcrete stone and the thick aggregate an d SO on，we can make the best structure mode ．Trough going fllrther experiment，choose the best material aggregate with double—admixtures techology and admixtures strength accelerating-agent．The cemen t s~ength factor is utilized，then the executive method oftechnology is determined in order to realize the craft process． Key WOrds： model ofconcrete structure；largest close-packing；double-admixtures；accelerating—agent. 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc295338040 摘要 PAGEREF _Toc295338040 \h I HYPERLINK \l _Toc295338041 ABSTRACT PAGEREF _Toc295338041 \h II HYPERLINK \l _Toc295338042 第一章 绪 论 PAGEREF _Toc295338042 \h 1 HYPERLINK \l _Toc295338043 1.1前言 PAGEREF _Toc295338043 \h 1 HYPERLINK \l _Toc295338044 1.2水泥及混凝土简史 PAGEREF _Toc295338044 \h 1 HYPERLINK \l _Toc295338045 1.3密实度模型的发展 PAGEREF _Toc295338045 \h 3 HYPERLINK \l _Toc295338046 1.4国内外密实度模型的应用 PAGEREF