岩土质文物加固材料烧料礓石超细化前后与石英砂结石体的性能对比  

Comparison of the calculus body properties of calcined ginger nuts as rockand soil cultural relics reinforcement materials beforeand after ultrafining with quartz sand

作　　者：李志鹏[1,2,3,4] 李燕飞 方晓芸[1,2,3,5,6] 王磊 赵林毅 LI Zhipeng;LI Yanfei;FANG Xiaoyun;WANG Lei;ZHAO Linyi(Conservation Research Institute,Dunhuang Academy,Jiuquan 736200,China;National Research Center for Conservation of Ancient Wall Paintings and Earthen Sites(Dunhuang Academy),Jiuquan 736200,China;Key Scientific Research Base for Conservation of Ancient Wall Paintings(Dunhuang Academy),National Cultural Heritage Administration,Jiuquan 736200,China;Technical Service Center of Cultural Relic Conservation,Dunhuang Academy,Lanzhou 730030,China;College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou 730070,China;Gansu Mogao Grottoes Cultural Heritage Protection Design Consulting Co.,Ltd.,Jiuquan 736200,China)

机构地区：[1]敦煌研究院保护研究所,甘肃敦煌736200 [2]国家古代壁画与土遗址保护工程技术研究中心(敦煌研究院),甘肃酒泉736200 [3]古代壁画保护国家文物局重点科研基地(敦煌研究院),甘肃酒泉736200 [4]敦煌研究院文物保护技术服务中心,甘肃兰州730030 [5]西北师范大学化学化工学院,甘肃兰州730070 [6]甘肃莫高窟文化遗产保护设计咨询有限公司,甘肃酒泉736200

出　　处：《文物保护与考古科学》2025年第2期119-128,共10页Sciences of Conservation and Archaeology

基　　金：甘肃省科技重点研发计划资助(20YF8FA014),甘肃省科技重大专项资助(22ZD6GA030)。

摘　　要：本研究开展了烧料礓石超细前后与石英砂结石体的各种性能对比试验,通过FT-IR,XRD和SEM分析了烧料礓石超细化前后与石英砂结石体的结构、组成和形貌,探讨了烧料礓石超细粉体在岩土质文物加固工程中的适用性。结果表明,与普通烧料礓石相比,烧料礓石超细化后结石体中SiO 2的峰减弱,CaCO 3和Ca 2Al 2SiO 7·n H 2O的峰增强且锐化,说明超细化有益于Ca(OH)2的碳化和SiO 2,β-CaSiO 3的水化。超细化后结石体的水化比例更大,凝结时间缩短,收缩率、含水率和波速升高,早期抗压强度和抗折强度提高;超细化后结石体的耐水性、抗冻融性、安定性和耐碱性得到良好改善;超细化后的烧料礓石与凝灰岩和红砂岩的黏结性提高,兼容性更好。总之,超细化不仅保留了普通烧料礓石的优点,而且使烧料礓石潜在的胶结性能得到了充分发挥。因此,烧料礓石超细化后更加适合于岩土质文物保护加固工程。The comparative tests of various properties of the calculus body of calcined ginger nuts before and after ultrafining with quartz sand were carried out.The structure,composition and morphology were analyzed using Fourier transform infrared spectrometry,X-ray diffraction and scanning electron microscopy.The applicability of the ultrafine powder of calcined ginger nuts in the process of reinforcing rock and soil cultural relics is discussed.The results show that,compared with normal calcined ginger nuts,the peaks of SiO 2 in the calculus body of calcined ginger nuts after ultrafining were weakened,and the those of CaCO 3 and Ca 2Al 2SiO 7·n H 2O were enhanced and sharpened,indicating that ultrafining was beneficial to the carbonization of Ca(OH)2 and the hydration of SiO 2 andβ-CaSiO 3.The hydration ratio,condensation time,shrinkage rate,moisture content and wave velocity of the calculus body after ultrafining were improved,and early compressive strength and flexural strength were increased.The water resistance,freeze-thaw resistance,stability and alkaline resistance of the calculus body after ultrafining were significantly improved.The calculus body after ultrafining had better adhesion and compatibility with tuff and red sandstone.In brief,ultrafining has not only retained the advantages of normal calcined ginger nuts but also given full play to the potential cementation properties of calcined ginger nuts.Therefore,the use of calcined ginger nuts after ultrafining is more suitable for the conservation and reinforcement of rock and soil cultural relics.

关 键 词：烧料礓石 超细粉 石英砂 结石体 强度特性 

分 类 号：K879.41[历史地理—考古学及博物馆学] TU52[历史地理—历史学]