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学者姓名：黄伟
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Abstract ：
在超高性能混凝土(Ultra-high performance concrete,UH PC)加固修复既有石结构中,UHPC与石材之间良好的粘结性能是保证加固效果的关键.因此,为探究UHPC-石材的界面抗剪性能,通过五组UHPC-石材剪切试验,以石材表面粗糙度(光滑、凿毛、不同键槽深度)为变量,研究了 UH-PC-石材试件破坏模式、荷载-滑移曲线、界面抗剪强度、基体应变等特征.将试验结果与数值模拟结果进行了对比,并提出界面抗剪承载力公式.结果表明:界面键槽处理方式能显著提高UHPC-石材试件界面粘结抗剪强度、改变破坏形态并有效提升试件的延性,当键槽深度为20 mm时,试件表现出较好的界面粘结性能.另外,UHPC与石材基体在弹性变形阶段的应变发展相似,表明两者材料在该阶段具有较好的协调变形能力.通过数值模拟及界面承载力计算公式与试验结果的验证表明,数值模拟的荷载-滑移曲线、界面粘结强度、应力分布等与试验结果表现出良好的一致性;此外,不同键槽形状的参数分析结果表明,当键槽深度为10 mm、20 mm时,正梯形键槽提高了界面抗剪承载力;与现有的界面抗剪承载力公式对比,提出的UHPC-石材界面承载力计算公式能够有效地预测界面抗剪承载力.
Keyword ：
数值模拟 数值模拟 界面处理 界面处理 界面抗剪性能 界面抗剪性能 石材 石材 超高性能混凝土 超高性能混凝土
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| GB/T 7714 | 王耀 , 郑新颜 , 黄伟 et al. 超高性能混凝土-花岗岩石材界面的抗剪性能研究 [J]. | 材料导报 , 2025 , 39 (6) : 126-135 . |
| MLA | 王耀 et al. "超高性能混凝土-花岗岩石材界面的抗剪性能研究" . | 材料导报 39 . 6 (2025) : 126-135 . |
| APA | 王耀 , 郑新颜 , 黄伟 , 吴应雄 , 黄雅莹 , 张恒春 et al. 超高性能混凝土-花岗岩石材界面的抗剪性能研究 . | 材料导报 , 2025 , 39 (6) , 126-135 . |
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Engineered cementitious composite (ECC) possesses excellent ductility resulting from the presence of organic fiber, however, the ECC exhibits a significant shrinkage performance, which is likely to induce cracking under the constrained condition in practical engineering. In this paper, the effect of fiber on the shrinkage behavior of ECC was investigated based on the steel ring with different constraints, and the cracking risks of ECC under constraints were discussed. The experimental results show that increasing fiber content and length in ECC are conducive to the splitting tensile strength, the 28 days strength are improved by 36 % and 16 % as the content and length of PVA fiber are increased from 0 % to 2 % and 6 mm to 12 mm, respectively. And the addition of PE fiber is helpful to the strength development, the strength is about 15 % higher than those with PP and PVA fiber. Under the uniform constraint, the fiber content has a significant impact on the shrinkage development of ECC, and the cracking is observed in the specimens with insufficient fiber content. However, the cracking is likely to be induced in the case of non-uniform constraint, and the reduction of fiber content and length accelerates the cracking age while the introduction of PVA fiber delays the cracking, the cracking age of ECC with 2 % PVA fiber content is 28.2 d, being later than those of ECC with PP and PE fiber, which is related to the moderate limited elongation and rough surface. Due to the ECC ductility and constraint, the traditional cracking risk criterion Theta CR is not suitable for the ECC under uniform constraint, Additionally, although the proposed eta is suitable for the cracking risk evaluation of ECC under non-uniform constraint, the cracking tendency is still not able to be predicted. Therefore, the constraint condition and material properties should be considered in the evaluation of ECC cracking risk.
Keyword ：
Cracking risk assessment Cracking risk assessment ECC ECC Fiber Fiber Ring constrained shrinkage Ring constrained shrinkage Splitting tensile strength Splitting tensile strength
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| GB/T 7714 | Huang, Wei , Deng, Xuhui , Li, Shaowei et al. Investigation on the effect of fiber on the constrained shrinkage performance of engineering cementitious composite (ECC) [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 458 . |
| MLA | Huang, Wei et al. "Investigation on the effect of fiber on the constrained shrinkage performance of engineering cementitious composite (ECC)" . | CONSTRUCTION AND BUILDING MATERIALS 458 (2025) . |
| APA | Huang, Wei , Deng, Xuhui , Li, Shaowei , Zhang, Zilong , He, Lian , Liu, Feifan et al. Investigation on the effect of fiber on the constrained shrinkage performance of engineering cementitious composite (ECC) . | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 458 . |
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Abstract ：
本文研究了在自然环境、浸水环境、热老化环境及冻融环境下,使用偏高岭土、硅灰取代瓷砖胶中的水泥及不同聚合物掺量对瓷砖胶粘结强度的影响.结果表明:5％掺量的可再分散乳胶粉可以提升瓷砖胶的粘结强度、耐水性能、热老化性能及抗冻融性能;随着纤维素醚掺量的增加,瓷砖胶粘结强度与热老化性能提升,但耐水性能提升不大,甚至有害于抗冻融性能;随着甲酸钙掺量的增加,瓷砖胶粘结强度与热老化性能提升,但抗冻融性能及耐水性能却在降低.
Keyword ：
可再分散乳胶粉 可再分散乳胶粉 甲酸钙 甲酸钙 粘结强度 粘结强度 纤维素醚 纤维素醚 耐久性能 耐久性能
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| GB/T 7714 | 董启有 , 李云峰 , 任海 et al. 聚合物对水泥基瓷砖胶粘结强度及耐久性能影响研究 [J]. | 佛山陶瓷 , 2024 , 34 (10) : 13-16,23 . |
| MLA | 董启有 et al. "聚合物对水泥基瓷砖胶粘结强度及耐久性能影响研究" . | 佛山陶瓷 34 . 10 (2024) : 13-16,23 . |
| APA | 董启有 , 李云峰 , 任海 , 谢军 , 任改霞 , 叶冠初 et al. 聚合物对水泥基瓷砖胶粘结强度及耐久性能影响研究 . | 佛山陶瓷 , 2024 , 34 (10) , 13-16,23 . |
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伴随着我国矿产工业的快速发展,铁尾矿砂的排放量激增,目前对铁尾矿砂主要的处理方式仍以消极堆存、填埋为主,这不仅占据了大量土地资源,还造成了严重的环境污染,因此,铁尾矿砂的大规模消纳迫在眉睫.铁尾矿砂是在特定条件下,将铁矿石通过磨细、浮选或磁选等工艺选取"有用部分"后所排放的废弃物.与天然细集料相比,其颗粒较细,棱角分明且更加坚固,可广泛应用于建筑工程,其中,铁尾矿砂的地域差异、原矿组成、品位、粒度及开采选矿提炼工艺等都会对其理化性质产生较大的影响.铁尾矿砂的活性较低,需采用不同活化方法提高其活性,其中,复合活化是最有效的技术.本文针对国内外铁尾矿砂的建材资源化利用及在其他领域的应用展开了综述,归纳了利用铁尾矿砂制备混凝土对力学性能、耐久性等的影响,讨论了其应用于道路功能材料的关键性能,梳理了铁尾矿砂基砖的应用现状,评估了利用其制备地聚合物的可行性,论述了其在制备介孔分子筛及改良膨胀土方面的优势.
Keyword ：
活化 活化 特细砂 特细砂 资源化利用 资源化利用 选矿 选矿 铁尾矿砂 铁尾矿砂
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| GB/T 7714 | 黄伟 , 薛葵 , 张子龙 et al. 铁尾矿砂的研究与应用进展 [J]. | 硅酸盐通报 , 2024 , 43 (10) : 3655-3665 . |
| MLA | 黄伟 et al. "铁尾矿砂的研究与应用进展" . | 硅酸盐通报 43 . 10 (2024) : 3655-3665 . |
| APA | 黄伟 , 薛葵 , 张子龙 , 曹涌钢 , 王佳亮 , 邱文浩 et al. 铁尾矿砂的研究与应用进展 . | 硅酸盐通报 , 2024 , 43 (10) , 3655-3665 . |
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为探究早强型聚羧酸系减水剂(ES-PCE)对硅酸三钙(C3S)早期水化的作用机制,通过对C3S溶解速率、水化放热与水化产物形貌演变进行表征,分析了ES-PCE对C3S早期水化的影响机理.结果表明:ES-PCE的掺入对C3S的溶解具有一定的抑制作用;ES-PCE对诱导期和主放热峰的延迟作用较弱;ES-PCE的掺入推迟了早期水化硅酸钙凝胶(C-S-H)晶体的生长,但在减速期时,C-S-H晶体数量出现明显增多,这是因为羧基与Ca2+的络合作用,溶液中大量的Ca2+被ES-PCE捕获,所形成的含Ca2+的表面有利于吸附溶液中的SiO32-并促进C-S-H凝胶在其表面沉淀,使得C-S-H的生长更为密集.
Keyword ：
C-S-H成核生长 C-S-H成核生长 早强型聚羧酸系减水剂 早强型聚羧酸系减水剂 水化 水化 溶解 溶解 硅酸三钙 硅酸三钙
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| GB/T 7714 | 衷从浩 , 黄伟 , 尹键丽 et al. 早强型聚羧酸系减水剂对硅酸三钙早期水化的影响 [J]. | 南昌大学学报（工科版） , 2024 , 46 (4) : 466-473 . |
| MLA | 衷从浩 et al. "早强型聚羧酸系减水剂对硅酸三钙早期水化的影响" . | 南昌大学学报（工科版） 46 . 4 (2024) : 466-473 . |
| APA | 衷从浩 , 黄伟 , 尹键丽 , 周佳敏 , 麻秀星 , 方云辉 et al. 早强型聚羧酸系减水剂对硅酸三钙早期水化的影响 . | 南昌大学学报（工科版） , 2024 , 46 (4) , 466-473 . |
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The workability and mechanical strength of ultra-high performance concrete (UHPC) are the key to its popularization and application. Therefore, this paper used workability test, rheological test, compressive strength test and flexural strength test to explore the variation of UHPC fluidity, time loss, yield strength, plastic viscosity, compressive strength, and flexural strength under different water reducing agent content and fiber physical parameters. The results show that the fluidity of UHPC increases first and then decreases with the increase of water reducing agent content and fiber content. The time loss of UHPC is mainly related to standing time. The longer the standing time of UHPC is, the greater the time loss is. The rheological curve of UHPC shows a trend of shear thickening. With the increase of water reducing agent, the yield stress and plastic viscosity of UHPC decrease first and then increase, and the minimum value is obtained when the content of water reducing agent is 1. 00% (mass fraction). The effect of water reducing agent on strength is not obvious. The compressive strength of UHPC increases with the increase of fiber content, and the flexural strength increases first and then decreases with the increase of fiber content. When the fiber length is 13. 0 mm, the compressive performance of UHPC is the best, and the flexural performance is the best when the fiber length is 20. 0 mm. © 2024 Bulletin of the Chinese Ceramic Society Press. All rights reserved.
Keyword ：
fluidity fluidity mechanical property mechanical property rheological property rheological property steel fiber steel fiber time loss time loss ultra-high performance concrete ultra-high performance concrete
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| GB/T 7714 | Huang, B. , Gong, M. , Pan, A. et al. Influences of Water Reducing Agent and Steel Fiber on Rheological and Mechanical Properties of Ultra-High Performance Concrete; [减水剂与钢纤维对超高性能混凝土流变及力学性能的影响] [J]. | Bulletin of the Chinese Ceramic Society , 2024 , 43 (9) : 3214-3223 . |
| MLA | Huang, B. et al. "Influences of Water Reducing Agent and Steel Fiber on Rheological and Mechanical Properties of Ultra-High Performance Concrete; [减水剂与钢纤维对超高性能混凝土流变及力学性能的影响]" . | Bulletin of the Chinese Ceramic Society 43 . 9 (2024) : 3214-3223 . |
| APA | Huang, B. , Gong, M. , Pan, A. , Rao, X. , Wang, T. , Chen, C. et al. Influences of Water Reducing Agent and Steel Fiber on Rheological and Mechanical Properties of Ultra-High Performance Concrete; [减水剂与钢纤维对超高性能混凝土流变及力学性能的影响] . | Bulletin of the Chinese Ceramic Society , 2024 , 43 (9) , 3214-3223 . |
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超高性能混凝土(UHPC)加固修复既有石结构中，UHPC与石材之间优异的黏结性能是保证加固效果的关键。因此，为探究UHPC-石材界面的黏结性能，通过劈裂抗拉试验和双L型剪切试验，考察不同界面处理方式对UHPC-石材界面黏结性能的影响。结果表明，UHPC-石材界面破坏模式主要分为三种，其中发生模式C破坏(石材UHPC破坏)时界面黏结强度最大。界面键槽处理方式能显著提高UHPC-石材界面黏结强度、界面剪切刚度，且在改变破坏形态的同时有效提升试件的延性，当键槽深度为20 mm时，试件表现出较好的界面黏结性能。另外，试件剪切荷载-位移曲线包含滑移前阶段和滑移后阶段，凿毛试件在滑移后阶段没有经历塑性变形。相同界面处理方式下，UHPC-石材的界面抗剪强度与界面劈裂抗拉强度呈正相关关系。
Keyword ：
UHPC-石材界面 UHPC-石材界面 剪切试验 剪切试验 劈裂抗拉试验 劈裂抗拉试验 界面剪切刚度 界面剪切刚度 键槽处理 键槽处理 黏结强度 黏结强度
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| GB/T 7714 | 黄伟 , 黄雅莹 , 陈雪莉 et al. 超高性能混凝土-石材界面黏结性能试验研究 [J]. | 硅酸盐通报 , 2024 , 43 (02) : 397-406,417 . |
| MLA | 黄伟 et al. "超高性能混凝土-石材界面黏结性能试验研究" . | 硅酸盐通报 43 . 02 (2024) : 397-406,417 . |
| APA | 黄伟 , 黄雅莹 , 陈雪莉 , 吴应雄 , 郑新颜 , 张恒春 . 超高性能混凝土-石材界面黏结性能试验研究 . | 硅酸盐通报 , 2024 , 43 (02) , 397-406,417 . |
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Under high pressure,some cement-based material powders with amorphous phase will undergo contact hardening,poly-condensation movement was occurred under pressure,and structural bond with certain strength will be formed between the powder particles,so as to quickly obtain artificial stone with certain strength and water resistance. In this paper,the bonding mechanism of cement-based material powder contact hardening under pressure and the effects of powder moisture content,drying conditions,calcium silicon ratio and pressing process on contact hardening performance are reviewed. Related research results show that hydrogen bonds,van der Waals forces,solid bridge bonds and other structural bonds are formed between powder particles under pressure. The moisture content of powder is an important factor affecting the contact hardening performance. Under pressure,the moisture can change the surface properties of powder particles and affect the bonding between particles,thereby influencing the mechanical properties of compaction products. The effect of calcium silicon ratio has a significant effect on the contact hardening properties,and the optimum calcium silicon ratio for different powder materials under pressing is also different. The existence of friction reduces the compaction efficiency,resulting in uneven distribution of density and strength of compacted products. The addition of lubricant can effectively reduce the influence of friction. In addition,reducing the height-diameter ratio of pressing die and using double-sided pressing can effectively improve the quality of the compaction products. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.
Keyword ：
amorphous phase amorphous phase calcium silicon ratio calcium silicon ratio cement-based powder material cement-based powder material compacting technology compacting technology contact hardening contact hardening moisture content moisture content structural bond structural bond
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| GB/T 7714 | Zhang, C. , Zhang, Z. , Huang, W. et al. Review on the Contact Hardening Performance of Cement-based Powder Materials Under High Pressure; [高压作用下水泥基粉末材料的接触硬化研究综述] [J]. | Materials Reports , 2024 , 38 (16) . |
| MLA | Zhang, C. et al. "Review on the Contact Hardening Performance of Cement-based Powder Materials Under High Pressure; [高压作用下水泥基粉末材料的接触硬化研究综述]" . | Materials Reports 38 . 16 (2024) . |
| APA | Zhang, C. , Zhang, Z. , Huang, W. , Pan, A. , Lai, Z. , Wu, T. et al. Review on the Contact Hardening Performance of Cement-based Powder Materials Under High Pressure; [高压作用下水泥基粉末材料的接触硬化研究综述] . | Materials Reports , 2024 , 38 (16) . |
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在高压作用下,一些具有无定型相的水泥基粉末材料会发生接触硬化现象,粉末颗粒在压力作用下发生缩聚运动,并在粉末颗粒间形成结构键,进而快速形成具有一定强度及耐水性的人造石材.本文综述了压力作用下水泥基粉末材料接触硬化的成键机理以及粉末水分含量、干燥条件、钙硅比、压制过程对其接触硬化性能影响的研究进展.相关研究结果表明,压力作用下粉末颗粒间会形成氢键、范德华力、固体桥键等结构键;粉末水分含量是影响接触硬化性能的重要因素,在压力作用下,水分可以改变粉末颗粒的表面性质并影响颗粒之间的结合,进而改变压制成品的力学性能;钙硅比对接触硬化性能的影响显著,不同粉末材料在压制时的最佳钙硅比亦是不同;摩擦力的存在降低了压制效率,造成压制成品密度、强度分布不均匀,润滑剂的加入可以有效降低摩擦力的影响;此外,降低压制模具高径比并使用双面压制可有效提升压制成品的质量.
Keyword ：
压制工艺 压制工艺 接触硬化 接触硬化 无定型相 无定型相 水分含量 水分含量 水泥基粉末材料 水泥基粉末材料 结构键 结构键 钙硅比 钙硅比
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| GB/T 7714 | 张超 , 张子龙 , 黄伟 et al. 高压作用下水泥基粉末材料的接触硬化研究综述 [J]. | 材料导报 , 2024 , 38 (16) : 117-125 . |
| MLA | 张超 et al. "高压作用下水泥基粉末材料的接触硬化研究综述" . | 材料导报 38 . 16 (2024) : 117-125 . |
| APA | 张超 , 张子龙 , 黄伟 , 潘阿馨 , 赖志超 , 吴天赐 et al. 高压作用下水泥基粉末材料的接触硬化研究综述 . | 材料导报 , 2024 , 38 (16) , 117-125 . |
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This study aims to investigate the interfacial mechanical attributes between steel fiber and the ultra-high performance concrete (UHPC) matrix. A comprehensive analysis was conducted on the pull-out process of steel fiber from the UHPC matrix, utilizing both experimental and numerical simulation methods. Factors such as fiber embedding depth, fiber diameter, and embedding angle and their potential impacts on the mechanical properties of the fiber-UHPC interface were examined. The results show that in the fiber pull-out test, the maximum pull-out force of the embedded depth group shows a trend of rapid rise and then slow development, and the pull-out work increases with the increase of the embedded depth. The maximum pull-out force and pull-out work of the fiber diameter group increase with the increase of the fiber diameter. The maximum pull-out force and pull-out work of the embedded angle group increased first and then decreased with the increase of the angle. The peak load reached 72.5 N when the embedding angle was 45 degrees, and the maximum pull-out work reached 214.4 N mm when the embedding angle was 30 degrees. The finite element simulation results are in good agreement with the experimental results.
Keyword ：
embedding parameters embedding parameters interfacial mechanical properties interfacial mechanical properties numerical simulation numerical simulation steel fiber steel fiber UHPC UHPC
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| GB/T 7714 | Huang, Bin , Xue, Feixiang , Gong, Mingzi et al. Experimental and numerical simulation study on the mechanical properties of steel fiber-UHPC interface [J]. | MAGAZINE OF CONCRETE RESEARCH , 2024 , 77 (1-2) : 104-116 . |
| MLA | Huang, Bin et al. "Experimental and numerical simulation study on the mechanical properties of steel fiber-UHPC interface" . | MAGAZINE OF CONCRETE RESEARCH 77 . 1-2 (2024) : 104-116 . |
| APA | Huang, Bin , Xue, Feixiang , Gong, Mingzi , Huang, Wei , Pan, Axin , Yang, Yu . Experimental and numerical simulation study on the mechanical properties of steel fiber-UHPC interface . | MAGAZINE OF CONCRETE RESEARCH , 2024 , 77 (1-2) , 104-116 . |
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