|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 冻融和碳化作用对混凝土氯离子侵蚀的影响显示文摘对4种不同配比混凝土先后进行冻融循环(0,50,150次)、加速碳化(0,1,2星期)和氯离子侵蚀,以研究冻融、碳化作用对混凝土氯离子侵蚀的影响.通过压汞法和选择电极法分别测定不同作用后混凝土的孔径分布和氯离子含量及其毛细吸收变化情况.结果表明:冻融循环增大混凝土孔隙率,作为混凝土损伤的动力源,为氯离子侵蚀创造更为有利的条件;冻融次数越多,造成的氯离子侵蚀越严重;碳化反应破坏混凝土基体原有的过滤机制,并促进Friedel盐分解,使氯离子含量增多;冻融与碳化均不同程度增大混凝土毛细吸水性能,两者共同作用较单独作用时的氯离子侵蚀严重得多.对混凝土结构进行耐久性设计和使用寿命预测时,必须考虑和引进冻融、碳化及其他因素的复合作用. | 张鹏 赵铁军 郭平功 Wittmann Folker H | 2006 | 东南大学学报(自然科学版)2006，36，S2： | 27 |
| 2 | 冻融前后混凝土碳化性能试验研究显示文摘通过对四种不同配合比的混凝土先后进行冻融循环试验(0、50、150次)和加速碳化试验(0、1、2周),研究冻融前后混凝土碳化性能变化情况。结果表明:冻融循环增大了混凝土孔隙率,加速了碳化进程,循环次数越多,加速作用越大;在冻融和高浓度CO2环境下,粉煤灰的掺入增加了混凝土碳化量,并造成较大强度损失,对混凝土结构不利;碳化使混凝土抗压强度略有提高,但不足以弥补冻融造成的强度损失,水灰比越大,强度损失越大。对混凝土结构进行耐久性设计和使用寿命预测时,必须考虑冻融、碳化及其它因素的复合作用。 | 张鹏 赵铁军 杨进波 Wittmann Folker H | 2007 | 混凝土2007，，5： | 14 |
| 3 | 混凝土构件中钢筋锈蚀的中子断层扫描成像显示文摘制备了小型混凝土构件,通过三点弯曲诱导裂缝和氯盐溶液干湿循环加速其中钢筋锈蚀,采用自然电位法监测钢筋的腐蚀电位,并采用中子断层扫描成像技术对钢筋锈蚀产物分布进行了分析.结果表明:钢筋混凝土构件经过85次氯盐溶液干湿循环后,采用中子断层扫描成像技术对其进行三维扫描成像,可直观呈现钢筋锈蚀产物分布状况;钢筋锈蚀产物集中分布于裂缝断面钢筋与基体界面的底部区域,并沿界面逐渐向外扩展,符合氯盐诱导钢筋锈蚀的坑蚀规律.这为研究混凝土结构中钢筋的锈蚀机理提供了一种新的试验方法. | 张鹏 WITTMANN Folker H 李荣旭 王雨 艾昕 赵铁军 | 2016 | 建筑材料学报2016，19，6： | 2 |
| 4 | Separation of a toluene/ethanol mixture by pervaporation using active carbon-filled polymeric membranes显示文摘 | DUVAL J M FOLKERS B MULDER M H V | 1994 | Separation Science&Technology1994，29，3： | 1 |
| 5 | Influence of Freeze-thaw Cycles on Properties of Integral Water Repellent Concrete显示文摘Service life of reinforced concrete structures usually was designed on the basis of one selected deteriorating mechanism as for instance carbonation,chloride penetration,and frost action.It could be shown in the meantime by numerous authors,however,that combined actions such as chloride penetration under mechanical load or chloride penetration in combination with freeze-thaw cycles may shorten the service life of reinforced concrete structures more than individual processes acting alone.We have found that chloride penetration is accelerated significantly by freeze-thaw cycles.Frost damage not only reduces mechanical strength and elastic modulus but migration of chloride is facilitated in the damaged pore structure.Chloride penetration can be retarded by the addition of silane emulsion to the fresh concrete.In this way Integral Water Repellent Concrete(IWRC) can be produced.Migration of water and ions dissolved in water can not be prevented by integral water repellent treatment but it is slowed down.The combination of damage mechanisms and the protective measures by integral water repellent treatment have to be taken into consideration in realistic service life prediction and design. | 马志鸣 WITTMANN Folker H 肖建庄 ZHAO Tiejun | 2016 | Journal of Wuhan University of Technology(Materials Science)2016，31，4： | 1 |
| 6 | Wittmann size effect on specific fracture energy of concrete显示文摘 | DUAN Kai HU Xiaozhi FOLKER H | 2007 | Engineering Frac- ture Mechanics2007，，74： | 1 |
| 7 | Separation of a toluene/ethanol mixture by pervaporation using active carbonfilled polymeric membranes 显示文摘 | Duval J M Folkers B Mulder M H V | 1994 | Sep Sci Technol1994，29，3： | 1 |
| 8 | The catalytic hydrogenation of esters to alcohols显示文摘 | H Adkins K Folkers | 1931 | J Am Chem Soc1931，53，3： | 1 |
| 9 | The retinoid ligand 4-oxo-retinoic acid is a highly active modulator of positional specification显示文摘 | Pijnappel W W Hendriks H F Folkers G E | 1993 | Nature1993，366，6453： | 1 |
| 10 | Response of patients in classes Ⅲ and Ⅳ of cardiomyopa- thy to therapy in a blind and crossover trial with coenzyme Q10显示文摘 | Langsjoen Per H Vadhanavikit S Folkers K | 1985 | Proc Natl Acad of Sci USA1985，82，： | 1 |
| 11 | Meth- od for the determination of 222 Rn and 220 Rn exha- lation rate using alpha-spectroscopy显示文摘 | KELLER G FOLKER K H MUTH H | 1982 | Radiat Prot Dosimetry1982，3，： | 1 |
| 12 | The Collaborative Network Orientation: Achieving Busi- ness Success through Collaborative Relationships显示文摘 | SORENSON R FOLKER A BRIGHAM H | 2008 | Entrepreneurship Theory and Practice2008，32，4： | 1 |
| 13 | The retinoid ligand 4-oxo-retinoic acid is a highly active modulator of positional specification 显示文摘 | Pijnappel W W Hendriks H F Folkers G E | 1993 | Nature1993，366，6453： | 1 |
| 14 | Estimation of Caco-2 cell permeability using calculated molecular descriptors 显示文摘 | VANDE WATERBEEMD H CAMENISCH G FOLKERS G | 1996 | Quant Struct-Act Relat1996，15，： | 1 |
| 15 | The catalytic hydrogenation of es-ter to alcohols 显示文摘 | Folkers K Adkins H | 1932 | J Am Chem Soc1932，54，3： | 1 |
| 16 | Researches on pyrimidines--Synthesis of 2-keto-1, 2, 3, 4-tetrahydropyrimidines显示文摘 | Harwood H J Johnson T B | 1932 | J Am Chem Soc1932，54，： | 1 |
| 17 | Control of cracking in early age concrete显示文摘 | Hirozo Mihashi Folker H Wiumann | 2002 | A A Balkema Publishers2002，，： | 1 |
| 18 | Shape of membrane permeability-lipophilicity curves: extension of theoretical models with an aqueous pore pathway 显示文摘 | Camenisch G Folkers G Van de Waterbeeme H | 1998 | Eur J Pharm Sci1998，6，4： | 1 |
| 19 | Biological evaluation of Substance P antagonists显示文摘 | Folkers K H(a)kanson R Ho¨rig J | 1984 | Br J Pharmacol1984，83，26： | 1 |
| 20 | Wittmann size effect on specific fracture energy of concrete显示文摘 | DUAN Kai HU Xiao-zhi FOLKER H | 2007 | Engineering Fracture Mechanics2007，，74： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员