宛平城墙病害勘测及保护材料试验研究  

Disease Investigation and Protection Materials to the Wanping City Wall

作　　者：杜超群 王菊琳[1,2] 张涛 DU Chao-qun;WANG Ju-lin;ZHANG Tao(School of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China;Key Scientific Research Base of National Cultural Relics Bureau,Research Institute of Cultural Relics Protection,Beijing 100029,China;Beijing Institute of Ancient Architecture,Beijing 100050,China)

机构地区：[1]北京化工大学材料科学与工程学院,北京100029 [2]文物保护领域科技评价研究国家文物局重点科研基地,北京100029 [3]北京市古代建筑研究所,北京100050

出　　处：《科学技术与工程》2020年第20期8316-8324,共9页Science Technology and Engineering

摘　　要：采用红外成像仪、内窥镜等无损检测方法对宛平城墙进行现场勘测,确定宛平城墙的病害类型和规模。针对城墙出现的裂缝、缺损、空鼓病害,分别确定3种修复材料配方,对其流动性、收缩性、力学性能及耐久性能进行测试,从而筛选出与城墙原材料相匹配,适合宛平城墙修复的补缝材料、补缺材料和灌浆材料。试验结果显示,在28 d的养护条件下,碳纳米管改性的补缝石灰材料可满足修复要求,而人造水硬性石灰和天然水硬性石灰分别在灌浆和补缺修复中表现出较好的性能。To determine the type and scale of the disease in Wanping City Wall, infrared imager, endoscope and other non-destructive testing methods were used to conduct on-site survey in the Wanping City Wall, Beijing. Observation on the cracks, defects, and hollow in the city wall, three types of repairing materials were chosen, and their fluidity, shrinkage, mechanical properties and durabi-lity were tested. The test results show that under the curing condition of 28 days, the carbon nanotube modified jointed lime material can meet the crack repair requirements, while the artificial hydraulic lime and natural hydraulic lime show better performance in grouting and filling repair respectively.

关 键 词：宛平城墙 水硬性石灰 改性石灰 病害修复 

分 类 号：TQ177.2[化学工程—硅酸盐工业]