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Application of Concrete Containing Large Quantity of Inorganic By product Powders

大量无机副产物粉体混凝土的应用

基本信息

批准号：
17560511
负责人：
KOYAMA Tomoyuki
金额：
$ 2.24万
依托单位：
KYUSHU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560511/
关键词：
Inorganic By-product Powder Large Quantity Use Concrete Application Methods Mass Concrete High fluidity Concrete High Strength Concrete Alkali Silica Reaction 性能発現メカニズム実大試験体構造性能セルフレベリングモルタル

项目摘要

In this study, application methods of concretes containing large quantity of inorganic by-product powders were discussed.1.Mass ConcreteIt was certified that the temperature rise of the concrete using large quantity of coal ash was lower than the concrete without coal ash, though the compressive strength of the former was higher than that of the later.2.High Fluidity ConcreteIt was certified that the high fluidity concretes using large quantity of coal ash showed high fluidity and were easy to be filled into formworks. After the removal of formworks, the surfaces of real size specimens using this concrete were clear and fine, and hard to be stained. Further, these specimens showed higher strength and lower shrinkage toward the long term.3. High Strength ConcreteIt was certified that the compressive strength of the concretes using large quantity of inorganic by-product powder, for example coal ash, lime stone powder or crushed stone powder, showed high strength, and the greater the amount of these powders the greater the strength of concrete.4.Alkali Silica ReactionIt was verified that the above mentioned concrete using several kind of aggregates or by-product powders had prevention effect against alkali silica Reaction.5.Recycled Aggregate ConcreteIt was verified that the above mentioned concrete using several kind of by-product prevented strength drop due to the use of recycled aggregates.

本研究探讨了大掺量无机副产物粉煤灰混凝土的应用方法。1.大体积混凝土研究证明，大掺量粉煤灰混凝土的温升低于不掺粉煤灰混凝土，虽然前者的抗压强度高于后者。2.高流动性混凝土经证明，高流动性混凝土使用大量的粉煤灰流动性好，易于填充模板。采用该混凝土制作的真实的尺寸试件，拆模后表面清晰细腻，不易沾污。此外，这些试件具有较高的强度和较低的收缩朝着长期.高强混凝土试验证明，大量掺加无机副产物粉如粉煤灰、石灰石粉或碎石粉的混凝土抗压强度高，并且这些粉末的量越大，混凝土的强度越大。4.碱硅酸反应经证实，使用几种骨料或通过-产物粉末具有防止碱硅酸反应的效果。5.再生骨料混凝土经证实，使用几种副产物的上述混凝土防止了由于使用再生骨料而导致的强度下降。