• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

再生粗集料表面附着砂浆的定量分析

Quantitative Analysis of Surface Attached Mortar for Recycled Coarse Aggregate.

作者信息

Liu Guoying, Li Qiuyi, Song Jialin, Wang Liang, Liu Haibao, Guo Yuanxin, Yue Gongbing

机构信息

School of Architectural Engineering, Qingdao Agricultural University, Qingdao 266109, China.

Linyi Blue Thai Environmental Protection Technology Co., Ltd., Linyi 276000, China.

出版信息

Materials (Basel). 2021 Dec 30;15(1):257. doi: 10.3390/ma15010257.

DOI:10.3390/ma15010257
PMID:35009403
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8745909/
Abstract

Due to the large amount of old hardened cement mortar attached to the surface of aggregate and the internal micro-cracks formed by the crushing process, the water absorption, apparent density, and crushing index of recycled coarse aggregate are still far behind those of natural coarse aggregate. Based on the performance requirements of different qualities of recycled coarse aggregate, the performance differences of recycled coarse aggregate before and after physical strengthening were observed. The results showed that the physical strengthening technique can remove old hardened mortar and micro powder attached to the surface of recycled coarse aggregate by mechanical action, which can effectively improve the quality of recycled coarse aggregate. The optimum calcination temperature of the recycled coarse aggregate was 400 °C and the grinding time was 20 min. The contents of the attached mortar in recycled coarse aggregates of Class I, II, and III were 7.9%, 22.8%, and 39.7%, respectively. The quality of recycled coarse aggregate was closely related to the amount of mortar attached to the surface. The higher the mortar content, the higher the water absorption, lower apparent density, and higher crushing index of the recycled coarse aggregate.

摘要

由于附着在骨料表面的大量老旧硬化水泥砂浆以及破碎过程中形成的内部微裂纹，再生粗骨料的吸水率、表观密度和压碎指标仍远远落后于天然粗骨料。基于不同品质再生粗骨料的性能要求，观察了物理强化前后再生粗骨料的性能差异。结果表明，物理强化技术可通过机械作用去除附着在再生粗骨料表面的老旧硬化砂浆和微粉，能有效提高再生粗骨料的质量。再生粗骨料的最佳煅烧温度为400℃，粉磨时间为20分钟。I类、II类和III类再生粗骨料中附着砂浆的含量分别为7.9%、22.8%和39.7%。再生粗骨料的质量与表面附着的砂浆量密切相关。砂浆含量越高，再生粗骨料的吸水率越高、表观密度越低、压碎指标越高。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/aeb0b7886137/materials-15-00257-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/71734b4bdca5/materials-15-00257-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/1360ef822726/materials-15-00257-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/a75500f16a98/materials-15-00257-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/6079e0036a5a/materials-15-00257-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/8e47170900e6/materials-15-00257-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/f1a806bc4b55/materials-15-00257-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/4dfacab876a2/materials-15-00257-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/13e454e04cda/materials-15-00257-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/6c1a90fb73f4/materials-15-00257-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/993495294626/materials-15-00257-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/350ddac00569/materials-15-00257-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/9c50cd36018d/materials-15-00257-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/b73da2afa112/materials-15-00257-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/aeb0b7886137/materials-15-00257-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/71734b4bdca5/materials-15-00257-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/1360ef822726/materials-15-00257-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/a75500f16a98/materials-15-00257-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/6079e0036a5a/materials-15-00257-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/8e47170900e6/materials-15-00257-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/f1a806bc4b55/materials-15-00257-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/4dfacab876a2/materials-15-00257-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/13e454e04cda/materials-15-00257-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/6c1a90fb73f4/materials-15-00257-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/993495294626/materials-15-00257-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/350ddac00569/materials-15-00257-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/9c50cd36018d/materials-15-00257-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/b73da2afa112/materials-15-00257-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1327/8745909/aeb0b7886137/materials-15-00257-g014.jpg

相似文献

1
Quantitative Analysis of Surface Attached Mortar for Recycled Coarse Aggregate.再生粗集料表面附着砂浆的定量分析
Materials (Basel). 2021 Dec 30;15(1):257. doi: 10.3390/ma15010257.
2
Influence of Pretreatment Methods on Compressive Performance Improvement and Failure Mechanism Analysis of Recycled Aggregate Concrete.预处理方法对再生骨料混凝土抗压性能改善的影响及破坏机理分析
Materials (Basel). 2023 May 18;16(10):3807. doi: 10.3390/ma16103807.
3
The Performance of Concrete Made with Secondary Products-Recycled Coarse Aggregates, Recycled Cement Mortar, and Fly Ash-Slag Mix.用二次产品——再生粗骨料、再生水泥砂浆和粉煤灰-矿渣混合物制成的混凝土的性能
Materials (Basel). 2022 Feb 15;15(4):1438. doi: 10.3390/ma15041438.
4
Effect of Pre-Wetting Recycled Mortar Aggregate on the Mechanical Properties of Masonry Mortar.预湿再生砂浆骨料对砌筑砂浆力学性能的影响。
Materials (Basel). 2021 Mar 22;14(6):1547. doi: 10.3390/ma14061547.
5
Concrete Performance Produced Using Recycled Construction and By-Product Industrial Waste Coarse Aggregates.使用再生建筑和副产品工业废粗集料生产的混凝土性能
Materials (Basel). 2022 Dec 15;15(24):8985. doi: 10.3390/ma15248985.
6
Efficiency and Mechanism of Surface Reinforcement for Recycled Coarse Aggregates via Magnesium Phosphate Cement.磷酸镁水泥对再生粗集料进行表面增强的效能与机理
Materials (Basel). 2023 Dec 26;17(1):122. doi: 10.3390/ma17010122.
7
Modification of Recycled Concrete Aggregate and Its Use in Concrete: An Overview of Research Progress.再生混凝土骨料的改性及其在混凝土中的应用：研究进展综述
Materials (Basel). 2023 Nov 13;16(22):7144. doi: 10.3390/ma16227144.
8
Enhancing the quality of recycled coarse aggregates by different treatment techniques-a review.不同处理技术提高再生粗骨料质量的研究进展。
Environ Sci Pollut Res Int. 2021 Nov;28(43):60346-60365. doi: 10.1007/s11356-021-16428-3. Epub 2021 Sep 15.
9
Properties of Concrete Prepared with Recycled Aggregates Treated by Bio-Deposition Adding Oxygen Release Compound.添加释氧化合物的生物沉积处理再生骨料制备的混凝土性能
Materials (Basel). 2019 Jul 3;12(13):2147. doi: 10.3390/ma12132147.
10
Influence of Mechanical Screened Recycled Coarse Aggregates on Properties of Self-Compacting Concrete.机械筛分再生粗骨料对自密实混凝土性能的影响
Materials (Basel). 2023 Feb 10;16(4):1483. doi: 10.3390/ma16041483.

引用本文的文献

1
Frost Resistance and Microscopic Properties of Recycled Coarse Aggregate Concrete Containing Chemical Admixtures.含化学外加剂的再生粗骨料混凝土的抗冻性及微观性能
Materials (Basel). 2024 Sep 24;17(19):4687. doi: 10.3390/ma17194687.
2
Crushing Characteristics of Coarse Aggregates for Asphalt Mixtures under Simulated Laboratory Compaction Loads and Repeated Traffic Loads.
Materials (Basel). 2022 Aug 25;15(17):5865. doi: 10.3390/ma15175865.