|Table of Contents|

Study on preparation and strength testing of road-used clayey silt cold-bonded lightweight aggregates(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2026年2期
Page:
15-27
Research Field:
道路工程
Publishing date:

Info

Title:
Study on preparation and strength testing of road-used clayey silt cold-bonded lightweight aggregates
Author(s):
LIU Yu1;  ZHOU Cheng-wang1;  LIANG Jin-long2;  KANG Zu-wei3;  WANG Jin-gang2;  HAN Xin4
(1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. China Railway Seventh Group Co., Ltd., Zhengzhou 450016, Henan, China; 3. China Railway(Shanghai)Investment Group Co., Ltd.,Shanghai 201101, China; 4. Beijing Jingang Airport Road Construction Co., Ltd., Beijing 100073, China)
Keywords:
road engineering;  cold-bonded lightweight aggregates;  indoor testing;  clayey silt;  cylinder strength
PACS:
U414
DOI:
10.19721/j.cnki.1671-8879.2026.02.002
Abstract:
To reduce the reliance of engineering construction on traditional mineral aggregates and promote the sustainable development of highway engineering, a low-carbon and efficient artificial aggregate preparation method based on powder granulation technology was proposed based on an engineering project in Zhengzhou. Clayey silty soil was used as the main raw material, and ordinary Portland cement(OPC), rapid-hardening aluminate cement(RAC), and slag cement composed of ground granulated blast-furnace slag mixed with ordinary Portland cement(GSC)were adopted as cold binders to prepare ordinary Portland cement lightweight aggregates(OPCLA), rapid-hardening aluminate cement lightweight aggregates(RACLA), and slag cement lightweight aggregates(GSCLA), respectively. Based on laboratory experiments, the optimal process parameters for the preparation of cold-bonded lightweight aggregates from silty soil were investigated, and the influences of cold binder type, binder content, and curing age on the physical and mechanical properties of the lightweight aggregates were established. The results show that, by controlling the optimal granulation process parameters, including a moisture content of 15%, a rotational speed of 30 r/min, and a feeding rate of 0.6 kg/s, lightweight aggregates with a granulation rate of 91.3%, uniform, and well-formed particles are obtained. RACLA exhibits the fastest strength development within the first 3 days of curing and is suitable for projects with tight construction schedules. After 28 days of curing, the single-particle strength and crushing strength of OPCLA reach 3.55 and 6.96 MPa, respectively, indicating a high level of later-age strength. When 30% of OPC is replaced by ground granulated blast-furnace slag in GSCLA, the strength decreases to a certain extent, whereas the cost significantly reduces, resulting in superior economic performance. The fitting results show that the single-particle strength of lightweight aggregates can be represented by a linear relationship with the crushing strength. Comprehensive performance evaluation shows that the cold-bonded lightweight aggregates after 3 days of curing can meet the performance requirements of subgrade and base layers during both construction and service stages. The artificial lightweight aggregates preparation method proposed in this study can provide technical support for the application of subgrade and base materials in road engineering.4 tabs, 11 figs, 36 refs.

References:

[1] 钟明然,左清富.我国建筑砂石骨料供求现状分析及管理对策研究[J].桂林航天工业学院学报,2021,26(4):504-509.
ZHONG Ming-ran, ZUO Qing-fu. Status quo analysis of supply and demand of sand and gravel aggregate in China and its management countermeasures[J]. Journal of Guilin University of Aerospace Technology, 2021, 26(4): 504-509.
[2]李寿德,李惠娴.我国人造轻骨料发展现状与前景分析[J].砖瓦,2016(12):37-41.
LI Shou-de, LI Hui-xian. Analysis on the development status and prospect of artificial lightweight aggregate in China[J]. Brick and Tile, 2016(12): 37-41.
[3]刘 军,李振林,张伟卓,等.工业固体废弃物材料制作冷黏结人造轻骨料的研究进展[J].材料导报,2023,37(18):131-148.
LIU Jun, LI Zhen-lin, ZHANG Wei-zhuo, et al. Research advances in cold-bonded artificial lightweight aggregates made from industrial solid waste materials[J]. Materials Reports, 2023, 37(18): 131-148.
[4]汪学彬,杨重卿,张祥伟,等.工业固体废弃物制备陶粒及其应用研究进展[J].中国粉体技术,2021,27(2):1-8.
WANG Xue-bin, YANG Zhong-qing, ZHANG Xiang-wei, et al. Preparation and application of ceramsite prepared from industrial solid waste: A review[J]. China Powder Science and Technology, 2021, 27(2): 1-8.
[5]赵增丰,蒲紫盈,林 璨,等.免烧陶粒及陶粒混凝土性能研究进展[J].材料导报,2024,38(20):1-26.
ZHAO Zeng-feng, PU Zi-ying, LIN Can, et al. Research progress of cold-bonded aggregate and application in concrete production[J]. Materials Reports, 2024, 38(20): 1-26.
[6]FERRARO A, COLANGELO F, FARINA I, et al. Cold-bonding process for treatment and reuse of waste materials: Technical designs and applications of pelletized products[J]. Critical Reviews in Environmental Science and Technology, 2020, 51(19): 2197-2231.
[7]TAJRA F, ELRAHMAN M A, STEPHAN D. The production and properties of cold-bonded aggregate and its applications in concrete: A review[J]. Construction and Building Materials, 2019, 225: 29-43.
[8]马保成,李家春,田伟平.中国岩土分异规律及其对公路建设的影响[J].公路,2008(3):17-21.
MA Bao-cheng, LI Jia-chun, TIAN Wei-ping. Distribution and variation rule of rock and soil in China and its influences on highway construction[J]. Highway, 2008(3): 17-21.
[9]金 星.建筑砂石骨料应用现状与矿砂废渣利用[J].中国石油和化工标准与质量,2018,38(9):96-97.
JIN Xing. Application status of building aggregates and utilization of mining waste slag[J]. China Petroleum and Chemical Standard and Quality, 2018, 38(9): 96-97.
[10]罗小利,史登峰.我国机制砂石资源开采管理当前面临的主要问题和对策[J].当代经济,2020(6):76-78.
LUO Xiao-li, SHI Deng-feng. Current main problems and countermeasures in the management of manufactured sand and gravel resources mining in China[J]. Contemporary Economics, 2020(6): 76-78.
[11]马明亮,孙晓南,权宗刚,等.我国工业固废制备陶粒资源化利用的研究进展[J].硅酸盐通报,2020,39(8):2492-2500.
MA Ming-liang, SUN Xiao-nan, QUAN Zong-gang, et al. Research progress on resource utilization of ceramsite prepared from industrial solid waste in China[J]. Bulletin of the Chinese Ceramic Society, 2020, 39(8): 2492-2500.
[12]赵飞燕,张小东,杜艳霞,等.粉煤灰陶粒的制备技术及研究进展[J].无机盐工业,2023,56(4):1-11.
ZHAO Fei-yan, ZHANG Xiao-dong, DU Yan-xia, et al. Preparation technology and research progress of fly ash ceramsite[J]. Inorganic Chemicals Industry, 2023, 56(4): 1-11.
[13]GEETHA S, RAMAMURTHY K. Environmental friendly technology of cold-bonded bottom ash aggregate manufacture through chemical activation[J]. Journal of Cleaner Production, 2010, 18(15): 1563-1569.
[14]NARATTHA C, CHAIPANICH A. Phase characterizations, physical properties and strength of environment-friendly cold-bonded fly ash lightweight aggregates[J]. Journal of Cleaner Production, 2018, 171: 1094-1100.
[15]伍树森,罗亚历,李 斌.陶粒的制备及其应用研究进展[J].江苏陶瓷,2023,56(2):25-28,31.
WU Shu-sen, LUO Ya-li, LI Bin. Research progress on preparation and application of ceramsite[J]. Jiangsu Ceramics, 2023, 56(2): 25-28, 31.
[16]郑伍魁,赵 丹,朱 毅,等.陶粒工程应用的趋势分析及研究进展[J].材料导报,2023,37(7):102-113.
ZHENG Wu-kui, ZHAO Dan, ZHU Yi, et al. Trend analysis and research progress of ceramsite engineering application[J]. Materials Reports, 2023, 37(7): 102-113.
[17]温久然.免烧粉煤灰陶粒的工艺研究[D].西安:长安大学,2003.
WEN Jiu-ran. Study on technology of non-sintered fly ash ceramsite[D]. Xi'an: Chang'an University, 2003.
[18]邹志祥.粉煤灰免烧轻集料的制备及其路基强度的实验研究[D].淮南:安徽理工大学,2007.
ZOU Zhi-xiang. Experimental study on preparation of coal ash lightweight aggregate and its roadbed strength tests[D]. Huainan: Anhui University of Science and Technology, 2007.
[19]黄京立,侯 杰,郑沛祺,等.粉煤灰-矿渣基免烧人造轻集料的制备及性能研究[J].材料导报,2024,38(13):150-158.
HUANG Jing-li, HOU Jie, ZHENG Pei-qi, et al. Preparation and properties of fly ash-ground granulated blast furnace slag based artificial lightweight aggregate[J]. Materials Reports, 2024, 38(13): 150-158.
[20]徐长伟,蒋昕桐.组成对淤泥免烧陶粒性能的影响研究[J].混凝土,2023(9):92-96.
XU Chang-wei, JIANG Xin-tong. Effect of composition on properties of non-fired ceramsite from sludge[J]. Concrete, 2023(9): 92-96.
[21]BELLOPEDE R, MARINI P. Aggregates from tunnel muck treatments: Properties and uses[J]. Physicochemical Problems of Mineral Processing, 2011, 47: 259-266.
[22]TSAI C T. Cold-bonding technique: A new approach to recycle innocuous construction residual soil, sludge, and sediment as coarse aggregates[J]. Sintering of Ceramics-New Emerging Techniques, 2012: 95-120.
[23]蔡基伟,张瑞芳,周奕菡,等.水泥固化法制备免烧渣土轻集料[J].河南大学学报(自然科学版),2021,51(4):466-472.
CAI Ji-wei, ZHANG Rui-fang, ZHOU Yi-han, et al. Fabrication of unburnt lightweight aggregate with waste soil solidified by cement[J]. Journal of Henan University(Natural Science), 2021, 51(4): 466-472.
[24]GAO W, ZHANG H, REN Q, et al. A low-carbon approach to recycling engineering muck to produce non-sintering lightweight aggregates: Physical properties, microstructure, reaction mechanism, and life cycle assessment[J]. Journal of Cleaner Production, 2023, 385: 135650.
[25]LEI J, YANG Y, CHEN X. Mechanics and permeability properties of ecological concrete mixed with recycled engineering muck particles[J]. Journal of Building Engineering, 2024, 91: 109560.
[26]DUAN Z, YANG W, ZOU S, et al. A critical review on cold-bonded artificial aggregate developed from solid wastes: From granulation analysis to performance evaluation[J]. Journal of Building Engineering, 2025, 99: 111588.
[27]刘思语,宋天骄,刘 玉,等.黏质粉土圆盘造粒颗粒化成粒率影响因素分析[C]//中国科学技术协会.2023世界交通运输大会(WTC2023)论文集(上册).北京:人民交通出版社股份有限公司,2023:242-250.
LIU Si-yu, SONG Tian-jiao, LIU Yu, et al. Analysis of factors affecting granulation rate of clayey silt in disc granulation process[C]//China Association for Science and Technology. Proceedings of the World Transport Convention 2023(WTC2023), Volume Ⅰ. Beijing: China Communications Press Co., Ltd., 2023: 242-250.
[28]宋天骄.粉土颗粒化改良技术与性能研究[D].西安:长安大学,2023.
SONG Tian-jiao. Research on granulation improvement technology and performance of silty soils[D]. Xi'an: Chang'an University, 2023.
[29]宋天骄,贺振振,刘 玉,等.黏质粉土颗粒化方法及颗粒性能研究[C]//中国科学技术协会.2022世界交通运输大会(WTC2022)论文集(公路工程篇).北京:人民交通出版社股份有限公司,2022:448-454.
SONG Tian-jiao, HE Zhen-zhen, LIU Yu, et al. Research on granulation methods and particle properties of clayey silt[C]//China Association for Science and Technology. Proceedings of the World Transport Convention 2022(WTC2022): Highway Engineering. Beijing: China Communications Press Co., Ltd., 2022: 448-454.
[30]李东星.挤压造粒法在颗粒硫酸钾生产中的应用[J].磷肥与复肥,2019,34(6):24-25.
LI Dong-xing. Application of extrusion granulation process in granular potassium sulfate production[J]. Phosphate & Compound Fertilizer, 2019, 34(6): 24-25.
[31]任孟伟.对辊式挤压造粒生产含腐植酸硫酸铵工艺研究[J].氮肥与合成气,2021,49(1):1-3,10.
REN Meng-wei. Study on process of producing humic acid-containing ammonium sulfate by roller extrusion granulation[J]. Nitrogen Fertilizer and Synthetic Gas, 2021, 49(1): 1-3, 10.
[32]ZOU S, LU J X, XIAO J, et al. Development and characteristics of novel high-strength lightweight core-shell aggregate[J]. Construction and Building Materials, 2023, 393: 132080.
[33]LI Y, WU D, ZHANG J, et al. Measurement and statistics of single pellet mechanical strength of differently shaped catalysts[J]. Powder Technology, 2000, 113(1/2): 176-184.
[34]徐永杰.轮胎压路机压实特性的分析与作业参数的确定[J].公路,2006(10):141-144.
XU Yong-jie. Analysis of compaction characteristics of tire roller and determination of operation parameters[J]. Highway, 2006(10): 141-144.
[35]李博容,张志峰,倪 超,等.压实机械对土壤应力的影响试验[J].机械研究与应用,2020,33(5):77-81.
LI Bo-rong, ZHANG Zhi-feng, NI Chao, et al. Experimental study on soil vertical stress under compacting machinery[J]. Mechanical Research & Application, 2020, 33(5): 77-81.
[36]于一凡.黄泛区粉土路基冲击压实动力特性研究与机理分析[D].济南:山东大学,2016.
YU Yi-fan. Research on dynamic characteristics of impact compaction on silt subgrade and mechanism analysis in the Yellow River flood area[D]. Jinan: Shandong University, 2016.

Memo

Memo:
-
Last Update: 2026-04-20