摘   要：制备了不同组分的复合型醇胺阻锈剂（粉剂），并研究其在不同介质（盐介质和水介质）中对混凝土强度及钢筋锈蚀的影响。结果表明：水介质中，SJ组试件28 d的抗压强度最高；盐介质中，NSJ 组试件28 d的抗压强度最高；掺相同阻锈剂时，盐介质中试件的强度基本高于水介质中的试件；SJ组试件中钢筋的容抗弧半径和阻抗幅模值最大，钢筋抗锈蚀能力较强；综合来看，三异丙醇胺+聚合多元醇复合阻锈剂的阻锈效果最优。Abstract: A composite alcoholamine rust inhibitor(powder) with different components was prepared, and its effects on concrete strength and steel bar corrosion in different media (salt medium and water medium) were studied. The results show that in the water medium, the SJ group specimen has the highest 28 d compressive strength. In the salt medium, the NSJ group specimen has the highest 28 d compressive strength. When the same rust inhibitor is added, the strength of the specimen in the salt medium is generally higher than that in the water medium. The capacitance arc radius and impedance amplitude modulus of the steel bars in the SJ group specimens are the largest, indicating strong corrosion resistance of the steel bars. Overall, the triisopropanolamine+polymerized polyol group composite rust inhibitor has the best rust resistance effect.

摘   要：研究了纳米气泡水（NBW）在不同静置时间（0、0.5、1.0、2.0 h）下对水泥净浆凝结时间、流变性能、抗压强度、水化热的影响。结果表明：NBW中的气泡具有良好的稳定性；NBW的加入显著缩短了水泥净浆的凝结时间，随着静置时间的延长，水泥净浆的凝结时间增加；随着NBW静置时间的延长，水泥净浆任意剪切速率所对应的剪切应力基本呈增加趋势；与TW组相比，NBW的掺入可以提高试件的3 d抗压强度，7 d时，各组试件的抗压强度基本相同；NBW-1组水泥净浆的放热速率峰值及总体放热量均显著高于TW组。Abstract: The influence of nano bubble water(NBW) on the setting time(0, 0.5, 1.0, 2.0 h), rheological property, compressive strength, and hydration heat of cement paste at different settling times was studied. The results indicate that the bubbles in NBW have good stability. The addition of NBW can significantly shorten the setting time of cement paste, and with the extension of settling time, the setting time of cement paste increases. With the extension of NBW settling time, the shear stress corresponding to any shear rate of cement paste shows a trend of increasing. Compared with the TW group, the addition of NBW can improve the compressive strength of the specimens at 3 d, but at 7 d, the compressive strength of each group of specimens is basically the same. The peak heat release rate and overall heat release of NBW-1 group cement paste are significantly higher than those of TW group.

温东昌,贾玉超,陈仓.纳米气泡水对水泥基材料性能的影响研究[J].混凝土与水泥制品,2025(9):6-9. WEN D C,JIA Y C,CHEN C.Study on the influence of nano bubble water on the properties of cement-based materials[J].China Concrete and Cement Products,2025(9):6-9.

史少杰,李炳良.防辐射大体积混凝土的温控仿真模拟及工程应用研究[J].混凝土与水泥制品,2025(9):10-14,19. SHI S J,LI B L.Simulation and engineering application study on temperature control of mass concrete for radiation protection[J].China Concrete and Cement Products,2025(9):10-14,19.

摘   要：研究了电化学修复后钢筋混凝土的黏结性能，分析了电流密度、静置时间对黏结-滑移性能的影响。结果表明：电化学修复会致使钢筋混凝土的黏结性能退化，且黏结性能随电流密度的增加而降低；电化学修复后静置一段时间，由其引起的黏结性能下降情况得到恢复，且恢复程度基本随静置时间的增加而增加。Abstract: The bond performance of reinforced concrete after electrochemical repair was studied, and the effects of current density and standing time on bond-slip performance were analyzed. The results indicate that electrochemical repair can degrade the bond performance of reinforced concrete, and the bond performance decreases with the increase of current density. After a period of standing time following the repair process, the decrease in bond performance caused by electrochemical repair is restored, and the degree of recovery basically increases with the increase of standing time.

王向林,陈先明,郑大明,等.电化学修复对钢筋混凝土单轴拉拔黏结-滑移性能的影响[J].混凝土与水泥制品,2025(9):15-19. WANG X L,CHEN X M,ZHENG D M,et al.Effect of electrochemical repair on bond-slip performance of uniaxial pull-out of reinforced concrete[J].China Concrete and Cement Products,2025(9):15-19.

摘   要：基于现有研究综述了有机（高分子聚合物、有机酸）、无机（无机酸、盐类）外加剂和矿物掺合料对氯氧镁水泥的抗压强度和耐水性能的影响，通过对比不同外加剂及矿物掺合料对抗压强度及软化系数的影响，总结了外加剂、矿物掺合料等复掺对氯氧镁水泥综合性能提高的优势，并对今后氯氧镁水泥的研究方向提出了建议。Abstract: Based on existing research, the effects of organic(high molecular polymer, organic acid), inorganic (inorganic acid, salt) additives, and mineral admixtures on the compressive strength and water resistance performanc of magnesium oxychloride cement are elucidated. By comparing the effects of different additives and mineral admixtures on compressive strength and softening coefficient, the advantages of using additives, mineral admixtures, and other additives to improve the comprehensive performance of magnesium oxychloride cement are summarized, and suggestions for future research directions of magnesium oxychloride cement are proposed.

徐平,郭月康,陈天宇.氯氧镁水泥的抗压强度及耐水性能研究进展[J].混凝土与水泥制品,2025(9):20-24. XU P,GUO Y K,CHEN T Y.Research progress on compressive strength and water resistance performanc of magnesium oxychloride cement[J].China Concrete and Cement Products,2025(9):20-24.

摘   要：采用水性环氧树脂与固化剂混合成环氧乳液，研究了聚灰比（0.05、0.10、0.15、0.20、0.30）对水泥基修补材料工作性、力学性能和抗冻性能的影响。结果表明：随着聚灰比的增大，水泥净浆的初凝时间基本延长，终凝时间先延长后缩短；随着聚灰比的增大，砂浆试件的抗折、抗压强度均先降低后基本不变，净浆试件的抗压强度先降低后基本不变，而抗折强度整体变化不明显；环氧乳液的掺入使冻融循环后砂浆试件的质量损失率有所增加；掺环氧乳液组砂浆试件冻融循环后的抗压、抗折强度降低幅度小于基准组，掺环氧乳液能提高砂浆试件冻融循环后的力学性能。Abstract: Epoxy lotion was prepared by mixing waterborne epoxy resin and curing agent. The effect of polymer-cement ratio (0.05, 0.10, 0.15, 0.20, 0.30) on the workability, mechanical properties, and frost resistance of cement-based repair materials was studied. The results show that as the polymer-cement ratio increases, the initial setting time of cement slurry is basically prolonged, and the final setting time is first prolonged and then shortened. As the polymer-cement ratio increases, the flexural and compressive strength of mortar specimens first decrease and then remain basically unchanged, and the compressive strength of slurry specimens first decreases and then remains basically unchanged, while the overall change in flexural strength of slurry is not significant. The addition of epoxy lotion increases the mass loss rate of mortar specimens after freeze-thaw cycles. The compressive strength and flexural strength of mortar specimens mixed with epoxy lotion after freeze-thaw cycle decrease less than those of the reference group, and the mechanical properties of mortar specimens after freeze-thaw cycle can be improved by adding epoxy lotion.

马川义,陈李瑜,张圣涛,等.环氧乳液对水泥基修补材料性能的影响[J].混凝土与水泥制品,2025(9):25-29. MA C Y,CHEN L Y,ZHANG S T,et al.Effect of epoxy lotion on properties of cement-based repair materials[J].China Concrete and Cement Products,2025(9):25-29.