|本期目录/Table of Contents|

[1]肖建庄,蓝启彬,张青天,等.组合再生混凝土及其衍生结构的应用及展望[J].建筑科学与工程学报,2023,40(01):1-13.[doi:10.19815/j.jace.2022.04050]
 XIAO Jianzhuang,LAN Qibin,ZHANG Qingtian,et al.Application and prospect of composite recycled concrete and its derived structures[J].Journal of Architecture and Civil Engineering,2023,40(01):1-13.[doi:10.19815/j.jace.2022.04050]
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组合再生混凝土及其衍生结构的应用及展望(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
40卷
期数:
2023年01期
页码:
1-13
栏目:
建筑材料
出版日期:
2023-01-10

文章信息/Info

Title:
Application and prospect of composite recycled concrete and its derived structures
文章编号:
1673-2049(2023)01-0001-13
作者:
肖建庄1,2,蓝启彬1,张青天1,张凯建1,罗素蓉1
(1. 福州大学 土木工程学院,福建 福州 350116; 2. 同济大学 土木工程学院,上海 200092)
Author(s):
XIAO Jianzhuang1,2, LAN Qibin1, ZHANG Qingtian1, ZHANG Kaijian1, LUO Surong1
(1. College of Civil Engineering, Fuzhou University, Fuzhou 350116, Fujian, China; 2. College of Civil Engineering, Tongji University, Shanghai 200092, China)
关键词:
再生混凝土 组合再生混凝土 组合层次 界面性能 新型工艺
Keywords:
recycled concrete composite recycled concrete combination level interface property new technique
分类号:
TU973.2
DOI:
10.19815/j.jace.2022.04050
文献标志码:
A
摘要:
为扩大再生混凝土的应用范围,充分发挥其经济与低碳效益,对组合再生混凝土及其衍生结构的应用进行了分析与梳理,总结了再生骨料和再生混凝土的特性,剖析了组合再生混凝土存在的问题并对未来研究进行了展望。结果表明:再生混凝土相比普通混凝土存在着强度低、弹性模量小的特点,仅依靠再生混凝土往往较难满足结构各个部位的力学性能及功能需求; 通过组合再生混凝土的形式将再生混凝土与其他混凝土在构件、结构上组合,或将再生骨料与其他骨料进行组合,将满足性能要求的混凝土放在特定部位上,既环保也能充分发挥各混凝土的优势; 不同混凝土间的界面剪切强度对组合再生混凝土结构的性能有着重要影响,剪切强度受到界面粗糙度、黏结剂、混凝土强度等多种因素的影响,提高界面粗糙度可以有效提高组合再生混凝土及其衍生结构的整体性和安全性; 组合再生混凝土与BIM、3D打印、装配式建筑和智能材料的结合,可在实现绿色建造的同时保证结构性能。
Abstract:
In order to expand the application range of recycled concrete and fully realize its economic and low-carbon benefits, the application of composite recycled concrete and its derivative structures were analyzed and sorted, and the characteristics of recycled aggregate and recycled concrete were summarized. The problems of composite recycled concrete were analyzed and the future research was prospected. The results show that recycled concrete has the characteristics of low strength and small elastic modulus compared with ordinary concrete. It is often difficult to meet the mechanical properties and functional requirements of various parts of the structure by relying on recycled concrete itself. Through the forms of composite recycled concrete, recycled concrete is combined with other concrete in the form of components and structures, or the recycled aggregate is combined with other aggregates. Concrete that meets the performance requirements can be placed on specific parts, which is not only environmentally friendly but also can give full play to the respective advantages. The interfacial shear strength between different concretes has an important influence on the performance of composite recycled concrete structures. The shear strength is affected by many factors such as interfacial roughness, binder and concrete strength. Increasing the interfacial roughness can effectively improve the integrity and safety of composite recycled concrete and its derivative structures. The combinations of composite recycled concrete with BIM, 3D printing, prefabricated buildings and smart materials can achieve green construction while ensuring structural performance.

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备注/Memo

备注/Memo:
收稿日期:2022-04-15
基金项目:国家自然科学基金项目(52078358,52008304,52078139); 福建省中青年教师教育科研项目(科技类)(JAT210040)
作者简介:肖建庄(1968-),男,工学博士,教授,博士生导师,E-mail:jzx@tongji.edu.cn。
更新日期/Last Update: 2023-01-01