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[1]王 倩,郝 静,杨 立,等.“三低一高”优化配合比混凝土的单轴受压裂纹演变 [J].武汉工程大学学报,2026,48(04):458-465.[doi:10.19843/j.cnki.CN42-1779/TQ.202604021]
　WANG Qian,HAO Jing,YANG Li,et al.Crack evolution of concrete under uniaxial compression with optimized mix proportion based on the “three lows and one high” principle [J].Journal of Wuhan Institute of Technology,2026,48(04):458-465.[doi:10.19843/j.cnki.CN42-1779/TQ.202604021]
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“三低一高”优化配合比混凝土的单轴受压裂纹演变
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
48
期数:
2026年04期
页码:
458-465
栏目:
智能制造
出版日期:
2026-08-30

文章信息/Info

Title:
Crack evolution of concrete under uniaxial compression with optimized mix proportion based on the “three lows and one high” principle
文章编号:
1674 - 2869（2026）04 - 0458 - 08
作者:
王 倩1; 郝 静1; 杨 立2; 卢海林*1
1. 武汉工程大学土木工程与建筑学院，湖北 武汉 430074；
2. 中铁十五局集团有限公司，上海 200070
Author(s):
WANG Qian1; HAO Jing1; YANG Li2; LU Hailin*1
1. School of Civil Engineering and Architecture，Wuhan Institute of Technology，Wuhan 430074，China；
2. China Railway 15th Bureau Group Co.，Ltd.，Shanghai 200070，China
关键词:
“三低一高”原则; 混凝土优化配合比; 裂纹演变; 单轴受压
Keywords:
“three lows and one high”principle;  optimized concrete mix proportion;  crack evolution;  uniaxial compression
分类号:
TU528.01
DOI:
10.19843/j.cnki.CN42-1779/TQ.202604021
文献标志码:
A
摘要:
针对无砟轨道道床板混凝土开裂问题，以襄荆高铁中国铁路轨道系统（CRTS） Ⅰ型双块式无砟轨道工程为背景，基于“三低一高”（低胶凝材料用量、低用水量、低坍落度、高含气量）原则提出了一种混凝土优化配合比，其核心在于降低水胶比和用水量、控制胶凝材料用量、提高含气量并引入内养护剂。分别对该优化配合比与工程常用配合比混凝土试件开展单轴受压试验，并结合数字图像相关（DIC）技术与扫描电子显微镜（SEM）进行多尺度表征，对比分析试件的裂纹演变规律。结果表明，优化配合比试件的峰后应力-应变曲线下降更为平缓，终止应变处的单位体积总能量较工程常用配合比试件提高45.1%，峰后脆性改善指数由0.606 0提高至0.924 6，增幅为52.6%，脆性破坏特征明显减弱。DIC分析显示其高应变区出现更晚且分布更分散，裂纹扩展与连通过程更为缓和，有效降低了峰后的局部化程度。SEM观测则表明其基体致密性明显改善，疏松水化产物及初始微裂缝大幅减少。通过宏观力学响应、裂纹局部化演变和微观结构层次协同作用，基于“三低一高”原则设计的优化配合比可改善混凝土的抗裂能力。
Abstract:
To address the cracking problem of concrete used for ballastless track bed slabs，taking the CRTS I-type double-block ballastless track project of Xiangyang-Jingzhou High-speed Railway as the research background，in this study we proposed an optimized concrete mix proportion in accordance with the “three lows and one high” principle，namely low cementitious material content，low water content，low slump，and high air content. The core design concept was to reduce water-to-binder ratio and water content，reasonably control cementitious material amount，raise air content and add internal curing agent. Uniaxial compression tests were conducted on concrete specimens adopting the optimized and conventional mix proportion, respectively. Digital image correlation （DIC） technology and scanning electron microscopy （SEM） were respectively adopted for multiscale characterization，and the crack evolution law of these specimens was comparatively analyzed. Results showed that the post-peak stress-strain curves of specimens with optimized mix proportion declined more slowly. The total energy per unit volume at the termination strain was 45.1% higher than that of conventional specimens. The post-peak brittleness improvement index increased from 0.606 0 to 0.924 6，with an increment of 52.6%，indicating that the brittle failure characteristics were markedly weakened. DIC results revealed that high-strain zones emerged later and presented more scattered distribution，the processes of crack propagation and coalescence became milder，and the post-peak strain localization degree was effectively suppressed. SEM observations verified that the compactness of concrete matrix was greatly improved and loose hydration products as well as initial microcracks were significantly reduced. Through multi-scale synergistic regulation of macroscopic mechanical response，crack localization evolution， and microstructure, the optimized mix proportion can collaboratively enhance the crack resistance of concrete.

参考文献/References:

[ 1 ] 禹雷，谈遂，冯诚禹，等. 面向基础大变形的可调整双块式无砟轨道结构设计[J]. 铁道标准设计，2026，70（1）：25-33.
[ 2 ] LIU W X，WANG B Y，WANG Z X，et al. Mechanical properties and damage evolution features in uniaxial compression with non-coincident interlayer contact in double-block ballastless track [J]. Construction and Building Materials，2024，426：136178.
[ 3 ] YI H N， YANG R S， LIANG S Q， et al. Micromechanical behavior of ballastless track structures concrete in cold region [J]. Construction and Building Materials，2025，484：141855.
[ 4 ] YE M X， ZENG Z P， LI P C， et al. Research and prediction of early-age loads in double-block ballastless track structure [J]. Transportation Geotechnics，2024，49：101426.
[ 5 ] 虞冬冬，温金保，祝烨然，等. 低胶凝材料自密实混凝土的制备及性能研究[J]. 混凝土与水泥制品，2023（6）：11-15.
[ 6 ] ZENG H Y， JIN M， LI W W， et al. Performance evolution of low heat cement under thermal cycling fatigue：a comparative study with moderate heat cement and ordinary Portland cement [J]. Construction and Building Materials，2024，412：134863.
[7 ] 刘晓丹，付兵，马钰，等. 低胶凝材料用量透水混凝土性能研究[J]. 绿色科技，2024，26（12）：228-232，237.
[8 ] 李兵，林煜期，王宏，等. 低坍落度聚丙烯纤维混凝土的高温后性能研究[J]. 科学技术与工程，2021，21（4）：1522-1528.
[ 9 ] 梁靖，刘胜兵，郑宇航. 聚乙烯纤维对再生混凝土性能的影响[J]. 武汉工程大学学报，2022，44（3）：346-349.
[10] 李淋，梁小孔. 基于高性能混凝土配合比力学性能及抗裂性能研究[J]. 水利科技与经济，2024，30（8）：126-130.
[11] HUANG X J，HU X，UMAR H A，et al. Formation and stability of bubbles in concrete and their influence on the performance of air-entrained concrete： a state-of-the-art review [J]. Cement and Concrete Composites，2026，168：106466.
[12] ABBAS M M， MUNTEAN R. The effectiveness of different additives on concrete’s freeze-thaw durability：a review [J]. Materials，2025，18（5）：978.
[13] 王保江. 兰新铁路CRTSⅠ型双块式无砟轨道道床板混凝土抗裂技术[J]. 铁道建筑，2014（2）：101-104.
[14] 高贵. CRTS双块式无砟道床抗裂混凝土性能及应用研究[J].国防交通工程与技术，2021，19（6）：71-74.
[15] 陈福现. 高铁岔区无砟道床板裂纹防控技术研究[J]. 铁道建筑技术，2020（1）：137-140，153.
[16] 谢汉梁，梁炯丰，何春锋，等. 单轴受压下钢纤维再生混凝土应力-应变曲线关系研究[J]. 混凝土，2025（1）：47-49，55.
[17] KWON S H，LEE J S，KOH K，et al. Strain softening of high-performance fiber-reinforced cementitious composites in uniaxial compression [J]. International Journal of Concrete Structures and Materials，2024，18（1）：17.
[18] 张庆贺，陈晨，袁亮，等. 基于DIC和YOLO算法的复杂裂隙岩石破坏过程动态裂隙早期智能识别[J]. 煤炭学报，2022，47（3）：1208-1219.
[19] 程斌，李得睿. 基于退相关DIC的疲劳裂纹全局动态测量方法[J]. 力学学报，2022，54（4）：1040-1050.
[20] BERTELSEN I M G，KRAGH C，CARDINAUD G， et al. Quantification of plastic shrinkage cracking in mortars using digital image correlation [J]. Cement and Concrete Research，2019，123：105761.
[21] 周小燕，杨淘，代薇，等. 基于DIC技术的修复后混凝土裂缝扩展特性试验研究[J]. 水电能源科学，2025，43（7）：119-122，68.
[22] LU C G， ZHANG X C， CHEN W Z， et al. Quantitative analysis of crack propagation behavior in recycled concrete subjected to axial compression using digital image correlation （DIC） technology and fractal theory [J]. Fractal and Fractional，2024，8（12）：686.
[23] 王骏豪，田文祥，姬翔，等. 基于FIB/SEM平台及原位力学表征的混凝土微观力学性能研究[J/OL]. 武汉大学学报（工学版），2025，2025-06-20. https://doi.org/10.14188/j.1671-8844.2025.0013.
[24] LI W G，LONG C，TAM V W Y，et al. Effects of nano-particles on failure process and microstructural properties of recycled aggregate concrete [J]. Construction and Building Materials， 2017， 142：42-50.

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备注/Memo

备注/Memo:
收稿日期：2026-04-27
基金项目：武汉工程大学科学研究基金（K2025032）
作者简介：王 倩，硕士研究生。Email：1205806615@qq.com
*通信作者：卢海林，博士，教授。Email：hail_lu@yangtzeu.edu.cn
更新日期/Last Update: 2026-09-05