Query：
学者姓名：梁咏宁
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
为了研究激发剂种类对脱硫石膏-碱矿渣隧道防火涂料(DGAC)性能的影响机理,固定碱掺量为4％,碱矿渣水泥掺量为20％,探究激发剂种类,即CaO+Na2CO3、Ca(OH)2+Na2CO3、CaO+Na2SO4、Ca(OH)2+Na2SO4、NaOH,其所对应的 DGAC 分别为 CNC、CHNC、CNS、CHNS、NH,对 DGAC 干燥时间、凝结时间、干密度、抗压强度、耐水性及防火性的影响,并结合扫描电子显微镜(SEM)和X射线衍射(XRD)揭示其机理.结果表明:在干燥和凝结时间方面,CNS＞CHNS＞CNC＞CHNC＞NH;在抗压强度和耐水性方面,CHNC＞CNC＞NH＞CNS＞CHNS,CHNC生成的絮状水化硅酸钙(C-S-H)凝胶较多,其与针状钙矾石交叉紧密,具有最好的耐水性和抗压强度;在防火性方面,CHNS＞CNS＞NH＞CHNC＞CNC,CHNS和CNS中的激发剂碱性较低,其生成的C-S-H凝胶数量较少,且钙矾石的形态较粗,水化产物整体结构疏松,因此其抗压强度较低,但防火性较好.
Keyword ：
激发剂 激发剂 耐水性 耐水性 脱硫石膏-碱矿渣胶凝材料 脱硫石膏-碱矿渣胶凝材料 防火性 防火性 隧道防火涂料 隧道防火涂料
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 陈宗燕 , 周阳升 , 赵晓雯 et al. 脱硫石膏-碱矿渣隧道防火涂料性能及机理研究 [J]. | 涂料工业 , 2025 , 55 (2) : 7-13 . |
| MLA | 陈宗燕 et al. "脱硫石膏-碱矿渣隧道防火涂料性能及机理研究" . | 涂料工业 55 . 2 (2025) : 7-13 . |
| APA | 陈宗燕 , 周阳升 , 赵晓雯 , 季韬 , 梁咏宁 . 脱硫石膏-碱矿渣隧道防火涂料性能及机理研究 . | 涂料工业 , 2025 , 55 (2) , 7-13 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The poor water resistance has long limited the widespread application of magnesium phosphate cement (MPC). This study utilized the high-alkaline of the MgO-SiO2-K2HPO4 system to activate slag and incorporated prewater-saturated pottery sand to prepare a water-resistant magnesium-based cement (SP-MSPC). The research primarily examined the effect of pottery sand on the water resistance and microstructure of SP-MSPC with different slag substitution rates. The results indicated that an increase in pottery sand content prolonged the setting time and reduced the fluidity of the paste. The incorporation of higher amounts of pottery sand decreased the mechanical properties of the matrix, but the addition of pottery sand effectively promoted paste hydration, particularly slag hydration, significantly enhancing the water resistance of the matrix. The water resistance coefficient of the S20-P6 matrix at 56 days was 72.42 %, a 61.86 % increase compared to the control group S0P0. This can be attributed to the internal curing effect of the pottery sand, which promotes paste hydration and the continuous formation of K-struvite crystals and the water-resistant M-S-H and C-(A)-S-H gels. The crystal and gel phases were bonded to each other and work synergistically with the dense filling effect of ultrafine slag particles, effectively filling the matrix pores and microcracks, blocking moisture transport channels, slowing the penetration of external moisture, and reducing the dissolution of K-struvite crystals and other hydration products aqueous environments. The incorporation of pottery sand promoted slag hydration enhanced the average polymerization degree of the C-(A)-S-H gel, and reduced the volume of macropores within the matrix.
Keyword ：
MgO-SiO 2-K 2 HPO 4 system MgO-SiO 2-K 2 HPO 4 system Microstructure Microstructure Pre-water-saturated pottery sand Pre-water-saturated pottery sand Slag Slag Water resistance Water resistance
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yao, Pengpeng , Lin, Xujian , Wu, Yuzhong et al. Understanding the effect of pre-water-saturated pottery sand on the microstructure and water resistance of the slag-blended MgO-SiO2-K2HPO4 system [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 473 . |
| MLA | Yao, Pengpeng et al. "Understanding the effect of pre-water-saturated pottery sand on the microstructure and water resistance of the slag-blended MgO-SiO2-K2HPO4 system" . | CONSTRUCTION AND BUILDING MATERIALS 473 (2025) . |
| APA | Yao, Pengpeng , Lin, Xujian , Wu, Yuzhong , Ji, Tao , Liang, Yongning , Zhang, Hongru . Understanding the effect of pre-water-saturated pottery sand on the microstructure and water resistance of the slag-blended MgO-SiO2-K2HPO4 system . | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 473 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The accumulation of municipal solid waste incineration bottom ash (MSWI-BA) not only occupies land, but also leads to severe environmental pollution. In order to improve the utilization of MSWI-BA and reduce carbon emissions, the effect of alkali content on alkali-activated slag (AAS) paste containing 12% MSWI-BA under high-temperature exposure was studied. The alkali contents, i.e., the mass of Na2O in the water glass, were 2%-6% of the total mass of the precursors. The weight loss, thermal shrinkage, and strength of AAS were investigated. The results show that at the same heat treatment temperature, as the alkali content increases, the flexural and compressive strengths of AAS increase and then decrease, reaching the maximum at AAS with 4% alkali content (NS4). As the alkali content increases from 2% to 4%, the higher OH- concentration reduces the Ca dissolution of portlandite in MSWI-BA, resulting in a lower increase in Ca concentration than Si concentration. This leads to a decrease in Ca/Si and an increase in Al/Si of C A S H, which is beneficial for improving the structural stability of C S H after high temperature. When the alkaline content increases from 4% to 6%, excessive matrix shrinkage leads to an increase in microcracks. It was found that NS4 has the best high-temperature resistance and has good application prospects in engineering.
Keyword ：
Alkali-activated slag Alkali-activated slag Alkali content Alkali content High-temperature exposure High-temperature exposure Municipal solid waste incineration bottom ash (MSWI-BA) bottom ash Municipal solid waste incineration bottom ash (MSWI-BA) bottom ash
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Binbin , Ma, Yu , Liang, Yongning et al. Effect of Alkali Content on the High-Temperature Behavior of Alkali-Activated Slag Paste Containing MSWI Bottom Ash [J]. | JOURNAL OF MATERIALS IN CIVIL ENGINEERING , 2024 , 36 (6) . |
| MLA | Zhang, Binbin et al. "Effect of Alkali Content on the High-Temperature Behavior of Alkali-Activated Slag Paste Containing MSWI Bottom Ash" . | JOURNAL OF MATERIALS IN CIVIL ENGINEERING 36 . 6 (2024) . |
| APA | Zhang, Binbin , Ma, Yu , Liang, Yongning , Wang, Yao , Ji, Tao . Effect of Alkali Content on the High-Temperature Behavior of Alkali-Activated Slag Paste Containing MSWI Bottom Ash . | JOURNAL OF MATERIALS IN CIVIL ENGINEERING , 2024 , 36 (6) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
This study focuses on the shrinkage behavior of ultra-high performance concrete (UHPC) incorporating recycled fine aggregates (RFA). The effects of RFA content (0, 25, 50, 75, and 100%) and different moisture states of RFA were investigated through mechanical properties, autogenous shrinkage, drying shrinkage, and restrained shrinkage. The results showed that the incorporation of RFA generally reduced the mechanical properties of UHPC, although marginal improvements were seen with the use of oven-dried or air-dried RFA. Saturated surface-dry (SSD) RFA effectively reduced autogenous shrinkage of UHPC through internal curing. However, the autogenous shrinkage in UHPC increased with the increase of RFA content. RFA also increased the drying shrinkage. Microstructural analysis revealed that the increase in the shrinkage with increasing RFA content were due to the increase in pores smaller than 50 nm, and the decrease in micromechanical properties resulting from the incorporation of RFA. In terms of restrained shrinkage, the circumferential strain, basic tensile creep, and cracking potential of UHPC were related to autogenous shrinkage. Reducing the moisture content of RFA led to an increase in autogenous shrinkage while concurrently decreasing drying shrinkage.
Keyword ：
Mechanical properties Mechanical properties Recycled fine aggregate Recycled fine aggregate Shrinkage Shrinkage UHPC UHPC
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Dong , Zhou, Jitai , Sun, Qiangshun et al. Mechanical properties and early-age shrinkage of ultra-high performance concrete mortar with recycled fine aggregate [J]. | JOURNAL OF BUILDING ENGINEERING , 2024 , 98 . |
| MLA | Zhang, Dong et al. "Mechanical properties and early-age shrinkage of ultra-high performance concrete mortar with recycled fine aggregate" . | JOURNAL OF BUILDING ENGINEERING 98 (2024) . |
| APA | Zhang, Dong , Zhou, Jitai , Sun, Qiangshun , Ji, Tao , Liang, Yongning , Weng, Yiwei et al. Mechanical properties and early-age shrinkage of ultra-high performance concrete mortar with recycled fine aggregate . | JOURNAL OF BUILDING ENGINEERING , 2024 , 98 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The poor water resistance of traditional magnesium phosphate cement (MPC) limits its wider application in engineering fields. So far, research on enhancing the water resistance of MPC has been relatively limited. Therefore, this paper optimizes the slag content based on magnesium silicon potassium phosphate cement to prepare slag-magnesium silicon potassium phosphate cement (S-MSPPC). The research results indicate that slag contains various active components, and its appropriate addition can refine the pore structure of the paste. With the increase in slag replacement rate, the paste setting time increases, and the fluidity decreases slightly. The hydration of silica fume to produce SiO(OH)3- and SiO2(OH)2alkalinity of the paste and provides conditions for activating the activity of the slag. The S-MSPPC hardened paste can maintain alkalinity for the long term. Moreover, the water resistance of the SMSPPC paste was significantly improved while ensuring mechanical properties. The water resistance coefficients of S-20 with 20 % slag increased by 49.23 % and 40.64 % at 28 days and 56 days compared to the reference group S-0. This improvement was due to the participation of silica fume and slag in the hydration reaction to form M-S-H and C-(A)-S-H gels in the paste. These gel products fill the pores and microcracks in the paste, optimize the pore size distribution, reduce porosity, and enhance density. In addition, the alkaline environment within the paste effectively slows the dissolution rate of K-struvite in water, further enhancing the water resistance of SMSPPC.
Keyword ：
C -(A)-S-H C -(A)-S-H cement cement Hydration characteristics Hydration characteristics Mechanical properties Mechanical properties Slag-magnesium silicon potassium phosphate Slag-magnesium silicon potassium phosphate Water resistance mechanism Water resistance mechanism
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yao, Pengpeng , Lin, Xujian , Wu, Yuzhong et al. Influence of slag on water resistance of magnesium silicon potassium phosphate cement [J]. | JOURNAL OF BUILDING ENGINEERING , 2024 , 97 . |
| MLA | Yao, Pengpeng et al. "Influence of slag on water resistance of magnesium silicon potassium phosphate cement" . | JOURNAL OF BUILDING ENGINEERING 97 (2024) . |
| APA | Yao, Pengpeng , Lin, Xujian , Wu, Yuzhong , Ji, Tao , Liang, Yongning . Influence of slag on water resistance of magnesium silicon potassium phosphate cement . | JOURNAL OF BUILDING ENGINEERING , 2024 , 97 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
利用煅烧硅藻土(calcined diatomaceous,CD)取代部分水泥制备超高性能混凝土(UHPC),研究煅烧硅藻土掺量对UHPC自收缩和干燥收缩的影响,通过内部相对湿度、压汞法和微观形貌解释其对UHPC收缩性能的影响机理.实验结果表明,多孔结构的煅烧硅藻土在浆体搅拌过程中可以吸收自由水,并在前期水泥水化的过程中释放出来,具有良好的内养护功能;随着煅烧硅藻土掺量(质量分数 0～15%)的增加,UHPC早期抗压强度略微下降,后期抗压强度变化不大,浆体内部相对湿度逐渐增加,10～50 nm和小于 100 nm的孔隙逐渐减少,UHPC的自收缩和干燥收缩逐渐降低,其中煅烧硅藻土掺量为 15%时自收缩和干燥收缩最低;与未掺煅烧硅藻土的UHPC相比,掺 15%煅烧硅藻土的UHPC 7 d自收缩率降低 27.0%,90 d干燥收缩率下降 31.0%.
Keyword ：
孔结构 孔结构 干燥收缩 干燥收缩 煅烧硅藻土 煅烧硅藻土 自收缩 自收缩 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 | 梁咏宁 , 钱乾 , 肖泽荣 et al. 煅烧硅藻土对UHPC收缩性能的影响及机理 [J]. | 福州大学学报（自然科学版） , 2024 , 52 (6) : 717-723 . |
| MLA | 梁咏宁 et al. "煅烧硅藻土对UHPC收缩性能的影响及机理" . | 福州大学学报（自然科学版） 52 . 6 (2024) : 717-723 . |
| APA | 梁咏宁 , 钱乾 , 肖泽荣 , 吴明勤 , 陈志斌 , 季韬 . 煅烧硅藻土对UHPC收缩性能的影响及机理 . | 福州大学学报（自然科学版） , 2024 , 52 (6) , 717-723 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
将磷酸钾镁水泥用于钢结构防火涂料中,制备出一种性能优异的无机厚型钢结构防火涂料.研究磷镁比对磷酸钾镁水泥钢结构防火涂料(MFCS)的抗压强度、粘结强度和耐火性能的影响,并通过微观试验揭示其影响机理.结果表明,随着磷镁比的减小,MFCS的抗压强度、粘结强度和耐火性能先上升后下降.当磷镁质量比为1/3 时,水化产物MgKPO4·6H2O最多,MFCS在高温时吸收的热量最多,耐火性能最好,且浆体与骨料间的界面过渡区最密实,其抗压强度、粘结强度最好.
Keyword ：
磷酸钾镁水泥 磷酸钾镁水泥 磷镁比 磷镁比 粘结强度 粘结强度 耐火性能 耐火性能 钢结构防火涂料 钢结构防火涂料
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 林煌琪 , 邵晓燕 , 林旭健 et al. 磷镁比对磷酸钾镁水泥钢结构防火涂料性能的影响 [J]. | 福州大学学报（自然科学版） , 2024 , 52 (6) : 724-730 . |
| MLA | 林煌琪 et al. "磷镁比对磷酸钾镁水泥钢结构防火涂料性能的影响" . | 福州大学学报（自然科学版） 52 . 6 (2024) : 724-730 . |
| APA | 林煌琪 , 邵晓燕 , 林旭健 , 梁咏宁 , 胡成 , 王耀 et al. 磷镁比对磷酸钾镁水泥钢结构防火涂料性能的影响 . | 福州大学学报（自然科学版） , 2024 , 52 (6) , 724-730 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
为了高效利用造纸工业固废白泥,以硅酸钾和碳酸钾为复合激发剂,白泥和矿渣为复合前驱体,研究不同白泥掺量对碱矿渣/白泥砂浆(ALM)干燥收缩的影响,并通过X射线衍射分析、热重-微商热重分析和压汞法解释其机理.结果表明:随着白泥掺量的增大,ALM的水化硅酸钙凝胶(C-(A-)S-H)量减少,类水滑石量保持不变,文石、球霰石和方解石量增多,凝胶孔(3.12～10 nm)和中孔(10～50 nm)减少,大孔(＞50 nm)增加,ALM吸水率增大,水分损失率增大,名义晶胶比增大,ALM的抗压强度和干燥收缩降低.白泥掺量为20.0％的ALM具有较好的28 d抗压强度和较低的干燥收缩.
Keyword ：
C-(A-)S-H凝胶 C-(A-)S-H凝胶 孔结构 孔结构 干燥收缩 干燥收缩 白泥掺量 白泥掺量 碱矿渣/白泥砂浆 碱矿渣/白泥砂浆
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 张典 , 陈泽林 , 梁咏宁 et al. 白泥掺量对碱矿渣/白泥砂浆干燥收缩的影响 [J]. | 南昌大学学报（工科版） , 2024 , 46 (3) : 325-331 . |
| MLA | 张典 et al. "白泥掺量对碱矿渣/白泥砂浆干燥收缩的影响" . | 南昌大学学报（工科版） 46 . 3 (2024) : 325-331 . |
| APA | 张典 , 陈泽林 , 梁咏宁 , 孙亚冬 , 李燕玲 , 季韬 . 白泥掺量对碱矿渣/白泥砂浆干燥收缩的影响 . | 南昌大学学报（工科版） , 2024 , 46 (3) , 325-331 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
利用海砂替代河砂制备海砂硫铝酸盐混凝土(SACS),以海砂普通硅酸盐混凝土(OPCS)为对照,研究SACS的氯离子固化性能,并采用硬化砂浆阳极极化法及钢筋失重率法研究不同阻锈剂(单氟磷酸钠、亚硝酸锂和三乙醇胺)及其掺量(0%、0.5%、1%、1.5%、2%,即阻锈剂与硫铝酸盐水泥的质量比)对海砂硫铝酸盐水泥砂浆(SS)中钢筋极化电位和钢筋锈蚀的影响.结果表明:标养28 d后SACS氯离子固化率较OPCS高约18%,SS中钢筋极化电位略高于海砂普通硅酸盐水泥砂浆(OPCS);在SS中掺入阻锈剂能使钢筋极化电位正移,失重率降低;掺入 1.5%三乙醇胺阻锈效果最佳,钢筋极化电位变化满足规范要求,钢筋失重率仅为 0.0142%,与未掺入阻锈剂相比降低约91%.
Keyword ：
氯离子固化 氯离子固化 海砂 海砂 硫铝酸盐混凝土 硫铝酸盐混凝土 钢筋 钢筋 阻锈剂 阻锈剂
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王坚峰 , 梁咏宁 , 杨小彬 et al. 阻锈剂对海砂硫铝酸盐混凝土中钢筋锈蚀的影响 [J]. | 河北工程大学学报（自然科学版） , 2024 , 41 (5) : 1-7 . |
| MLA | 王坚峰 et al. "阻锈剂对海砂硫铝酸盐混凝土中钢筋锈蚀的影响" . | 河北工程大学学报（自然科学版） 41 . 5 (2024) : 1-7 . |
| APA | 王坚峰 , 梁咏宁 , 杨小彬 , 叶财发 , 司青山 , 季韬 . 阻锈剂对海砂硫铝酸盐混凝土中钢筋锈蚀的影响 . | 河北工程大学学报（自然科学版） , 2024 , 41 (5) , 1-7 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The influence of additive MgO and its content on both the compressive strength and carbonation depth of alkali-activated slag concrete (AASC) was investigated under an accelerated carbonation environment. Furthermore, the modification mechanism of MgO on the carbonation resistance of AASC was explored by multiple analytical techniques. Results showed that the incorporation of MgO effectively enhanced the post-carbonation compressive strength and diminished the carbonation depth of concrete. As the MgO content increased, there was a gradual reduction in carbonation depth. The incorporation of MgO promotes the hydration of slag, altering the Al environment, and promoting the formation of C-S-H and Mg-Al hydrotalcite phases. Moreover, the addition of MgO resulted in the emergence of magnesium carbonate and calcium magnesium carbonate in the carbonation products, which filled the pores and prevented the further diffusion of CO2 into the interior. In addition, the improvement effects are more pronounced in the water glass system compared to the NaOH system.
Keyword ：
activator activator Alkali-activated slag concrete Alkali-activated slag concrete carbonation carbonation MgO MgO microstructure microstructure
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yongning Liang , Xun Nian , Hao Zheng et al. The influence of additive MgO and its content on the carbonation resistance of alkali-activated slag concrete with different activators [J]. | Journal of Sustainable Cement-Based Materials , 2024 , 13 (4) : 546-557 . |
| MLA | Yongning Liang et al. "The influence of additive MgO and its content on the carbonation resistance of alkali-activated slag concrete with different activators" . | Journal of Sustainable Cement-Based Materials 13 . 4 (2024) : 546-557 . |
| APA | Yongning Liang , Xun Nian , Hao Zheng , Jianwei Zhan , Tao Ji , Xiaoyan Zheng . The influence of additive MgO and its content on the carbonation resistance of alkali-activated slag concrete with different activators . | Journal of Sustainable Cement-Based Materials , 2024 , 13 (4) , 546-557 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
