| 史佰佰，公丕海，關長濤，趙榮榮，李嬌.海灣扇貝骨料不同替代率對人工魚礁物理性能影響及碳匯作用分析.漁業科學進展，2019,40（6）：1-8 |
| 海灣扇貝骨料不同替代率對人工魚礁物理性能影響及碳匯作用分析 |
| Influence of Different Replacement Rates of Argopecten irradias Aggregate on Physical Properties of Artificial Reefs and Carbon Sequestration |
| 投稿時間：2018-12-22 修訂日期：2019-03-05 |
| DOI： |
| 中文關鍵字： 人工魚礁 海灣扇貝殼 抗壓強度 塌落度 固碳潜能 |
| 英文關鍵字： Artificial reef Bay scallop shell Compressive strength Slump Carbon sequestration potential |
| 基金項目： |
|
| 摘要點擊次數： 4121 |
| 全文下載次數： 5011 |
| 中文摘要： |
| 本研究在抗壓強度為C25的普通混凝土配合比的基礎上，採用粗、細扇貝殼對混凝土中的天然骨料部分替代，並對扇貝殼混凝土配合比進行了研究，比較了粗、細扇貝殼替代天然骨料混凝土的工作效能和基本力學性能，並根據山東省2016~2020年的投礁計畫，對利用扇貝殼替換人工魚礁混凝土中天然骨料的固碳潜能及可清理的廢棄扇貝殼堆積面積進行估算。結果顯示，隨著扇貝殼替換天然骨料比例的新增，混凝土的塌落度呈降低趨勢。粗扇貝殼替換天然粗骨料混凝土較細扇貝殼替換天然細骨料混凝土的塌落度降幅大；粗扇貝殼替代混凝土中的天然石時，扇貝殼混凝土的抗壓效能與基準混凝土基本接近，粗扇貝殼的最佳替代率為40%，28 d抗壓強度較基準混凝土提高了7.3%。用細扇貝殼替代混凝土中的天然砂時，可使混凝土的抗壓效能較基準混凝土提高幅度較大，最佳替代率為60%，28 d抗壓強度較基準混凝土提高了33.5%；以細扇貝殼替換混凝土天然細骨料替換率為50%~70%估算，山東省2016~2020年計畫新建的2043萬空方人工魚礁均用此種混凝土製作，可實現礁體固碳量27.54~38.56萬t，可减少廢棄貝殼陸地堆積面積5.89~8.24 km2，具有很高的生態潜能。 |
| 英文摘要： |
| This research was conducted based on the mix ratio of ordinary concrete with compressive strength of C25，with the aim to use scallop shells to partly replace coarse and fine aggregates in concrete.Experiments were conducted on the mix ratio of scallop shell concrete，and the working performance and basic mechanical properties of coarse and fine scallop shells instead of natural aggregate concrete was compared.According to the reef plan of Shandong Province from 2016 to 2020，the carbon sequestration potential of the natural aggregate in the artificial reef concrete replaced by the scallop shells and the accumulation area of the cleanable waste scallop shells could be estimated.The results showed that as the proportion of scallop shells replacing natural aggregate increases，the collapse of concrete tends to decrease，and the slump of natural coarse aggregate concrete replaced by coarse scallop shells is larger than that of natural fine aggregate concrete replaced by fine scallop shells.When scallop shells replaced natural stone in concrete，the compressive performance of scallop shell concrete was similar to that of the base concrete.The optimum replacement rate of scallop shells as coarse aggregate was 40%，and the 28-day compressive strength of scallop shell concrete was 7.3% higher than that of the reference concrete.When the natural fine aggregate in concrete was replaced by scallop shells，the compressive performance of concrete was greatly improved relative to that of the reference concrete.The best replacement rate was 60%，and the 28-day compressive strength of scallop shell concrete was 33.5% higher than that of the reference concrete.Estimation replacement rate of fine aggregate with scallop shells for concrete was 50%~70%.For example，20.43 million empty artificial reefs planned for 2016~2020 in Shandong Province are all made of this kind of concrete，reef materials can achieve carbon sequestration of 275.4~ 385.6 thousand tons and reduce the land accumulation area of abandoned shells by 5.89~8.24 square kilometers，which has high ecological value. |
| 附件 |
|
查看全文 查看/發表評論 下載PDF閱讀器 |
| 關閉 |
