論文・報告
| No. | タイトル・執筆者 |
|---|---|
| 5 | |
|
本研究では、主としてPC 上部工に用いるコンクリートを対象とし、各硬化促進材料の適用性の基礎的検討 として、初期材齢における強度発現性ならびに発熱特性について検討を行った。その結果、早強剤ならびに各 種混和材には凝結促進硬化が確認され、凝結速度が早まり、材齢初期における強度が高まったが、材齢長期に おける強度は変化が見られなかった。簡易断熱温度上昇試験における断熱温度上昇量の推定値は添加しない材 料に比べて、若干の増加傾向が見られた。 キーワード: 圧縮強度、初期強度、強度発現、凝結、簡易断熱、早強剤、促進、 |
|
|
|
|
In this study, mainly as a basic study of the applicability of various curing promoting material to the concrete for PC superstructures was examined about strength development, as well as heat generation characteristics in the initial material age. As a result, condensation promoting effect has been observed in the early-strength agents and various admixtures. Condensation rate was quickened and strength in the age of initial has increased. However, strength in the age of long-term showed no effect, it was observed that estimated value of the adiabatic temperature rise in a simple adiabatic temperature rise test increase slightly for the composition without additive. Key Words: compressive strength , initial strength , setting , simple heat insulation , Hardening accelerator,acceleration, |
概要