Query：
学者姓名：黄伟
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
With the rapid development of industry, the emission of industrial by-product gypsum has increased sharply. At present, the stacking-landfill-based treatment method not only wastes a lot of resources, but also seriously pollutes the ecological environment. Therefore, large-scale consumption of industrial by-product gypsum is imminent. Among the gypsum phases, α-hemihydrate gypsum has excellent properties which has been widely applied in various practical projects. Using industrial by-product gypsum to prepare α-hemihydrate gypsum, realizing the high value-added utilization of gypsum, has great application value. Whereas, the pretreatment method of industrial by-product gypsum, the preparation method of α-hemihydrate gypsum as well as the crystal form regulation are important influencing factors for the preparation of α-hemihydrate gypsum. Based on this, in this paper the industrial sources of α-hemihydrate gypsum and the key technologies of preparation at home and abroad were reviewed. The effects of pretreatment methods such as physical and chemical methods on the purification of industrial byproduct gypsum were summarized, the crystallization mechanism of α-hemihydrate gypsum was discussed, and different preparation methods were compared and evaluated. The crystal form control methods such as stirring and ball milling were reviewed, the effect of crystal modifier on the crystal form of α-hemihydrate gypsum was analyzed, and the crystal transformation mechanism was pointed out. © 2025 Chemical Industry Press Co., Ltd.. All rights reserved.
Keyword ：
Chemical industry Chemical industry Industrial emissions Industrial emissions Industrial waste treatment Industrial waste treatment Land fill Land fill
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Cao, Yonggang , Zhang, Zilong , Li, Zehao et al. Research progress on preparation of α-hemihydrate gypsum from industrial by-product gypsum [J]. | Chemical Industry and Engineering Progress , 2025 , 44 (3) : 1505-1519 . |
| MLA | Cao, Yonggang et al. "Research progress on preparation of α-hemihydrate gypsum from industrial by-product gypsum" . | Chemical Industry and Engineering Progress 44 . 3 (2025) : 1505-1519 . |
| APA | Cao, Yonggang , Zhang, Zilong , Li, Zehao , Li, Zeyou , Gu, Yin , Xue, Kui et al. Research progress on preparation of α-hemihydrate gypsum from industrial by-product gypsum . | Chemical Industry and Engineering Progress , 2025 , 44 (3) , 1505-1519 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
研究了在不同纤维素醚、乳胶粉及甲酸钙掺量下,水泥基瓷砖胶在不同约束条件下的自收缩性能.结果表明:乳胶粉掺量越大,瓷砖胶在自由条件下的自收缩越大;当纤维素醚掺量超过0.2％时,随着纤维素醚掺量的增加,自收缩降低;甲酸钙的掺量越大,自收缩也越大.乳胶粉掺量越大,瓷砖胶在约束条件下的自收缩越小;纤维素醚的掺入,可以抑制约束自收缩的发展,当纤维素醚掺量不超过0.3％时,对收缩影响不大,掺量达到0.4％时,可以显著降低瓷砖胶的自收缩;适当掺量的甲酸钙,增加了瓷砖胶早龄期的自收缩发展,但收缩终值会降低.
Keyword ：
可再分散乳胶粉 可再分散乳胶粉 甲酸钙 甲酸钙 纤维素醚 纤维素醚 约束收缩 约束收缩 自收缩 自收缩
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 邓旭辉 , 董启有 , 任海 et al. 聚合物对水泥基瓷砖胶自收缩性能影响研究 [J]. | 佛山陶瓷 , 2024 , 34 (11) : 19-23,43 . |
| MLA | 邓旭辉 et al. "聚合物对水泥基瓷砖胶自收缩性能影响研究" . | 佛山陶瓷 34 . 11 (2024) : 19-23,43 . |
| APA | 邓旭辉 , 董启有 , 任海 , 李云峰 , 任改霞 , 叶冠初 et al. 聚合物对水泥基瓷砖胶自收缩性能影响研究 . | 佛山陶瓷 , 2024 , 34 (11) , 19-23,43 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Ultra -high performance concrete (UHPC) is an innovative cement -based composite material characterized by extremely high durability and mechanical properties, which provides a potential possibility of using non -desalted sea -sand as aggregate. However, the long-term steel corrosion behavior in UHPC prepared by simulated sea -sand under different immersion environments remains unclear, which is of great significance for the application of sea -sand UHPC in practical engineering. In this study, the pore structure of sea -sand UHPC matrix was measured using nitrogen adsorption/desorption method. The corrosion behavior of rebar in sea -sand UHPC with different endogenous chloride ion contents soaking in pure water and NaCl solution was characterized by linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS) and cyclic polarization (CP). The experimental results show that the initial UHPC pore structure is refined by incorporation of sea -sand, and is similar to that of ordinary UHPC at the later hydration. Regardless of the endogenous chloride ion content and immersion environment, the corrosion rate evaluated by corrosion current density (icorr) and polarization resistance (Rp) of reinforcement in UHPC is extremely low. The measurement of EIS shows that UHPC group has higher matrix resistance (Rc) and charge transfer resistance (Rct), while lower electric double layer capacitance (CPEdl) of reinforcement, which indicates that the steel in UHPC made of sea -sand is still in a state of passivation. However, the steel bar in comparison specimen OPC soaking in NaCl solution is in the corrosion stage. Furthermore, sea -sand UHPC possesses of excellent ability of anti -pitting corrosion of reinforcement after 180 days of immersion in NaCl solution.
Keyword ：
Corrosion behavior Corrosion behavior Endogenous chloride level Endogenous chloride level Immersion environment Immersion environment Pore structure Pore structure Sea -sand UHPC Sea -sand UHPC
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Huang, Wei , He, Lian , Chen, Zhendong et al. Effect of endogenous chloride ion on the corrosion behavior of reinforcement embedded in sea-sand UHPC matrix in different immersion environments [J]. | JOURNAL OF BUILDING ENGINEERING , 2024 , 90 . |
| MLA | Huang, Wei et al. "Effect of endogenous chloride ion on the corrosion behavior of reinforcement embedded in sea-sand UHPC matrix in different immersion environments" . | JOURNAL OF BUILDING ENGINEERING 90 (2024) . |
| APA | Huang, Wei , He, Lian , Chen, Zhendong , Yin, Jianli , Huang, Qingwei , Chen, Rong et al. Effect of endogenous chloride ion on the corrosion behavior of reinforcement embedded in sea-sand UHPC matrix in different immersion environments . | JOURNAL OF BUILDING ENGINEERING , 2024 , 90 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
