二酸化炭素を用いた建設泥土のセメント安定処理

二氧化碳水泥稳定化处理建筑泥浆

• 批准号: 13750477
• 负责人: 西 元央
• 金额: $ 1.34万
• 依托单位: Osaka City University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13750477/
• 关键词: 二酸化炭素; 建設泥土; 改良土; 中性化処理; pH; 強度; 二酸化炭素含有率

本研究では,改良土配合が中性化処理に及ぼす影響,二酸化炭素含有率とpHの関係について検討し,以下に得られた知見を示す.●泥土の含水比,固化材量,改良土の含水比が中性化処理に及ぼす影響1)泥土含水比が低い場合,固化材との混合を不十分となるなどの影響で,中性化処理によるpH低下は小さい.2)改良土の含水比が低いほど,中性化速度が高い.3)固化材量が少ないと,中性化速度が高い.4)固化材量が多いと,pH9以下にならない場合がある.●二酸化炭素含有率とpHの関係1)改良土の含水比が低いほど,二酸化炭素の吸収が大きい.2)中性化処理初期では,改良土の二酸化炭素含有率が大きくなるが,pH低下は小さい.3)二酸化炭素含有率13%でpH9程度に下がる.4)二酸化炭素含有率10%以上では,1%増加するだけで顕著にpH低下が見られる.5)このpHの低下は,ある二酸化炭素含有率を境に始まると考えられる.

In this study, the improved soil is combined with "neutralization" and "neutralization", the carbon content of dicarboxylic acid is "pH", and the content of carbon dicarboxylic acid is "neutral" and "neutral". The water content ratio of soil, the amount of solidified material, the water content ratio of improved soil "neutralization" and "shadow" 1) the water content ratio of soil is low, and the mixing of solidified wood is not very good. 2) the water content of improved soil is lower than that of low pH, and the neutralization rate is high. 3) the amount of solidified material is low, and the neutralization rate is high. 4) the amount of cured material is more, the content of cured material is lower than that of pH9. The content of diacidized carbon is low. 1) the water content of improved soil is low. 2) in the early stage of neutralization, the carbon content of dicarboxylic acid is improved. 3) the carbon content of dicarboxylic acid is 13% under the degree of pH9. 4) the carbon content of dicarboxylic acid is more than 10%, and the content of pH is low. 5) the content of pH is low. The content of dicarboxylic acid carbon is very important.