再生砖混粗骨料颗粒的形态表征与分析

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (8): 2659-2669.

再生砖混粗骨料颗粒的形态表征与分析

杨秀芬¹, 黄佳富¹, 戴大旺¹, 杨潮军^1,2, 孟涛¹

1.浙江大学建筑工程学院,杭州 310058;
2.浙江省建设工程质量检验站有限公司,杭州 310012

收稿日期:2021-03-03 修回日期:2021-03-29 出版日期:2021-08-15 发布日期:2021-09-02
通讯作者: 孟涛,博士,副教授。E-mail:taomeng@zju.edu.cn
作者简介:杨秀芬(1998—),女,硕士研究生。主要从事建筑材料方面的研究。E-mail:22012059@zju.edu.cn
基金资助:
国家自然科学基金(52078453)

Morphological Characterization and Analysis of Recycled Brick Concrete Coarse Aggregate Particles

YANG Xiufen¹, HUANG Jiafu¹, DAI Dawang¹, YANG Chaojun^1,2, MENG Tao¹

1. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China;
2. Zhejiang Construction Engineering Quality Inspection Station Co., Ltd., Hangzhou 310012, China

Received:2021-03-03 Revised:2021-03-29 Online:2021-08-15 Published:2021-09-02

摘要/Abstract

摘要： 本文采用图像处理技术对再生砖混粗骨料的颗粒形态进行了表征,计算并分析了各组分的高宽比、圆整度和紧凑系数等特征参数的分布情况。试验结果表明,通过颜色分析可以准确识别骨料材质,基于识别结果求得的骨料颗粒的高宽比、圆整度和紧凑系数具有相似的分布规律。砖、石、木和陶瓷4种组分中,砖和石占比较大,其特征参数也相差较小,针状颗粒少,圆整度好,而木骨料则多为针状颗粒,高宽比较大,陶瓷则由于具有较高的强度,其面积和周长相较于其余骨料最大。此外,砖、石骨料不同等效直径的级配分布基本成正态分布,能够混合形成一种级配良好的骨料。研究成果有助于揭示再生砖混粗骨料的颗粒形态特点,推动再生砖混粗骨料的研究和应用。

关键词: 再生砖混粗骨料, 形态表征, 数字图像处理, 高宽比, 圆整度, 紧凑系数

Abstract: In this study, the digital image processing technology was used to characterize the particle shape of the recycled brick concrete coarse aggregate. The distribution of characteristic parameters such as height width ratio, roundness and compact factor of each component was also analyzed. The experimental results show that the aggregate material is accurately identified through the color analysis, and the height width ratio, roundness and compact factor of the aggregate particles obtained based on the identification results have similar distribution rules. Among the four components of brick, stone, wood and ceramics, brick and stone account for a relatively larger proportion, and their characteristic parameters are also relatively similar, with less needle-like particles and better roundness, while wood aggregate is mostly needle-like particles with a larger height width ratio. Ceramics has the largest area and perimeter due to its higher strength. In addition, the gradation distribution of the brick and stone aggregates is basically a normal distribution, which can be mixed to form a well-graded aggregate. The research results are helpful to reveal the particle morphology characteristics of the recycled brick concrete coarse aggregate, and promote the research and application of the recycled brick concrete coarse aggregate.

Key words: recycled brick concrete coarse aggregate, morphological characterization, digital image processing, height width ratio, roundness, compact factor

中图分类号:

TU528

杨秀芬, 黄佳富, 戴大旺, 杨潮军, 孟涛. 再生砖混粗骨料颗粒的形态表征与分析[J]. 硅酸盐通报, 2021, 40(8): 2659-2669.

YANG Xiufen, HUANG Jiafu, DAI Dawang, YANG Chaojun, MENG Tao. Morphological Characterization and Analysis of Recycled Brick Concrete Coarse Aggregate Particles[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(8): 2659-2669.

参考文献

[1] 田金枝.建筑垃圾生产再生骨料的综合效益分析[D].重庆:重庆大学,2019.
TIAN J Z. Comprehensive benefit analysis of recycled aggregate produced by construction waste[D]. Chongqing: Chongqing University, 2019 (in Chinese).
[2] 时乐.我国建筑垃圾现状分析及其资源化利用进程发展[J].建材与装饰,2020(10):161-162.
SHI L. The present situation analysis of construction waste in China and the development of resource utilization process[J]. Construction Materials & Decoration, 2020(10): 161-162 (in Chinese).
[3] 余红明.砖混骨料再生水泥稳定材料的性能研究[D].杭州:浙江大学,2020.
YU H M. Research on the properties of cement stabilized recycled mixed aggregates materials[D]. Hangzhou: Zhejiang University, 2020 (in Chinese).
[4] 徐开东,王继娜,李志新,等.砖混建筑垃圾再生骨料应用技术指标系统化研究[J].硅酸盐通报,2020,39(9):2905-2911.
XU K D, WANG J N, LI Z X, et al. Systematized study on application technology indicators of recycled aggregate reproduced by masonry construction waste[J]. Bulletin of the Chinese Ceramic Society, 2020, 39(9): 2905-2911 (in Chinese).
[5] 马昆林,黄新宇,胡明文,等.砖混再生粗骨料混凝土力学性能及工程应用研究[J].硅酸盐通报,2020,39(8):2600-2607.
MA K L, HUANG X Y, HU M W, et al. Mechanical properties and engineering application of brick-concrete recycled coarse aggregate concrete[J]. Bulletin of the Chinese Ceramic Society, 2020, 39(8): 2600-2607 (in Chinese).
[6] 张立新,吕伟民,陈兵,等.集料性状对高强混凝土断裂和声发射特性的影响[J].同济大学学报(自然科学版),2001,29(5):546-550.
ZHANG L X, LU W M, CHEN B, et al. Effects of aggregates' character on concrete fracture performance and acoustic emission[J]. Journal of Tongji University, 2001, 29(5): 546-550 (in Chinese).
[7] MANDELBROT B B, PASSOJA D E, PAULLAY A J. Fractal character of fracture surfaces of metals[J]. Nature, 1984, 308(5961): 721-722.
[8] 唐明,李晓.混凝土分形特征研究的现状与进展[J].混凝土,2004(12):8-11.
TANG M, LI X. Current situation and development of concrete fractal characteristic[J]. Concrete, 2004(12): 8-11 (in Chinese).
[9] 高嵩,郭远新,吴本清,等.再生细骨料品质的分形学特征研究[J].混凝土,2019(6):78-83.
GAO S, GUO Y X, WU B Q, et al. Research on fractal characteristic of recycled fine aggregate[J]. Concrete, 2019(6): 78-83 (in Chinese).
[10] 李维涛,孙洪泉,邢君.混凝土中的分形效应初探[J].水利与建筑工程学报,2004,2(1):17-19.
LI W T, SUN H Q, XING J. Theory of fractal applied to concrete study[J]. Journal of Water Resources and Architectural Engineering, 2004, 2(1): 17-19 (in Chinese).
[11] 郭伟,秦鸿根,陈惠苏,等.分形理论及其在混凝土材料研究中的应用[J].硅酸盐学报,2010,38(7):1362-1368.
GUO W, QIN H G, CHEN H S, et al. Fractal theory and its applications in the study of concrete materials[J]. Journal of the Chinese Ceramic Society, 2010, 38(7): 1362-1368 (in Chinese).
[12] 刘浩洋,李红云,邹春霞.纤维弹性模量对轻骨料混凝土气泡分形维数和耐久性影响[J].硅酸盐通报,2015,34(10):3039-3044.
LIU H Y, LI H Y, ZOU C X. Effect of fiber elastic modulus on concrete bubble fractal dimension and frost durability of light-weight aggregate concrete[J]. Bulletin of the Chinese Ceramic Society, 2015, 34(10): 3039-3044 (in Chinese).
[13] 韦江雄,余其俊,曾小星,等.混凝土中孔结构的分形维数研究[J].华南理工大学学报(自然科学版),2007,35(2):121-124.
WEI J X, YU Q J, ZENG X X, et al. Fractal dimension of pore structure of concrete[J]. Journal of South China University of Technology (Natural Science Edition), 2007, 35(2): 121-124 (in Chinese).
[14] 谢超,王起才,李盛,等.不同水灰比、养护条件下混凝土孔结构、抗压强度与分形维数之间的关系[J].硅酸盐通报,2015,34(12):3695-3702.
XIE C, WANG Q C, LI S, et al. Relations of pore fractral dimension to pore structure and compressive strength of concrete under different water to binder ratio and curing condition[J]. Bulletin of the Chinese Ceramic Society, 2015, 34(12): 3695-3702 (in Chinese).
[15] CEPURITIS R, WIGUM B J, GARBOCZI E J, et al. Filler from crushed aggregate for concrete: pore structure, specific surface, particle shape and size distribution[J]. Cement and Concrete Composites, 2014, 54: 2-16.
[16] FERNLUND J M R. Image analysis method for determining 3-D shape of coarse aggregate[J]. Cement and Concrete Research, 2005, 35(8): 1629-1637.
[17] ASAHINA D, TAYLOR M A. Geometry of irregular particles: direct surface measurements by 3-D laser scanner[J]. Powder Technology, 2011, 213(1/2/3): 70-78.
[18] SU D, YAN W M. 3D characterization of general-shape sand particles using microfocus X-ray computed tomography and spherical harmonic functions, and particle regeneration using multivariate random vector[J]. Powder Technology, 2018, 323: 8-23.
[19] 徐欢,刘清,何原野,等.粗骨料(卵石)对自密实混凝土性能影响试验研究[J].工业建筑,2015,45(5):97-101.
XU H, LIU Q, HE Y Y, et al. Experimental study on the influence of coarse aggregate (pebble) on properties of self-compacting concrete[J]. Industrial Construction, 2015, 45(5): 97-101 (in Chinese).
[20] 严琳,杨长辉,王冲.粗骨料颗粒形状指数、级配对自密实混凝土工作性能的影响[J].混凝土,2011(1):75-77+80.
YAN L, YANG C H, WANG C. Influence of coarse aggregates' shape index and gradation in self-compacting concrete's rheological behavior and working performance[J]. Concrete, 2011(1): 75-77+80 (in Chinese).
[21] TAFESSE S, FERNLUND J M R, BERGHOLM F. Digital sieving-Matlab based 3-D image analysis[J]. Engineering Geology, 2012, 137/138: 74-84.
[22] 苏栋,吴炯,肖政健,等.基于三维扫描和球谐分析的骨料和再生骨料颗粒形状表征[J].沈阳建筑大学学报(自然科学版),2020,36(5):827-835.
SU D, WU J, XIAO Z J, et al. Geometrical characterization of natural and recycled aggregate particles based on 3D scanning and spherical harmonic analyses[J]. Journal of Shenyang Jianzhu University (Natural Science), 2020, 36(5): 827-835 (in Chinese).