玄武岩纤维对传统糯米灰浆性能的影响及机理分析

摘要/Abstract

摘要： 糯米灰浆的早期强度以及收缩、冻融等性能制约了其在古建筑修复中的应用。利用扫描电镜(SEM)、X射线衍射(XRD)等技术手段探讨了玄武岩纤维掺量及糯米浆浓度的改变对糯米灰浆力学性能的影响及其机理。结果表明:糯米浆的浓度调控了碳酸钙晶体的位置、大小、形貌,对糯米灰浆的早期强度及收缩、耐温、冻融等性能影响较大,糯米浆浓度为6.5%(质量分数)时各项力学性能最佳;玄武岩纤维的空腔结构及细小直径的特点对糯米灰浆的力学性能有较大帮助,28 d抗压、抗折强度分别提高436%、150%,7 d收缩率下降65%,冻融次数明显增加,5%(质量分数)掺量的玄武岩纤维-糯米灰浆综合性能最佳。在实际应用中,掺入一定量的玄武岩纤维来改善糯米灰浆性能是可行的。

关键词: 古建筑修复, 糯米灰浆, 糯米浆, 玄武岩纤维, 力学性能, 机理

Abstract: Application of sticky rice-lime mortar (SRLM) in the restoration of ancient buildings is restricted by its properties of early strength, shrinkage and freeze-thaw. The influence of basalt fiber content and sticky rice paste concentration on the mechanical properties of sticky rice-lime mortar and its mechanism were studied by means of scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results show that the position, size and morphology of calcium carbonate crystals are controlled by sticky rice paste concentration, and has a great influence on the early strength, shrinkage, temperature resistance, freeze-thaw properties of sticky rice-lime mortar. The mechanical properties are the best when the mass fraction of sticky rice paste is 6.5%. Characteristics of cavity structure and mini-diameter of the basalt fiber improves the mechanical properties of sticky rice-lime mortar. The 28 d compressive strength and flexural strength increase by 436% and 150%, respectively, 7 d shrinkage rate decreases by 65%, and the freeze-thaw times increase obviously. Basalt fiber sticky rice-lime mortar has the best comprehensive performance when the mass fraction of basalt fiber is 5%. In practical application, it is feasible to improve the performance of sticky rice-lime mortar by adding a certain amount of basalt fiber.

Key words: ancient building restoration, sticky rice-lime mortar, sticky rice paste, basalt fiber, mechanical property, mechanism

中图分类号:

TU578

阳令明, 张维祥, 周绍青. 玄武岩纤维对传统糯米灰浆性能的影响及机理分析[J]. 硅酸盐通报, 2020, 39(12): 3924-3931.

YANG Lingming, ZHANG Weixiang, ZHOU Shaoqing. Influence of Basalt Fiber on Properties of Traditional Sticky Rice-Lime Mortar and Its Mechanism Analysis[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2020, 39(12): 3924-3931.

参考文献

[1] 杨富巍,张秉坚,曾余瑶,等.传统糯米灰浆科学原理及其现代应用的探索性研究[J].故宫博物院院刊,2008(5):105-114+159.
[2] 郑利平,武仙竹,金普军,等.重庆巫山大昌蓝家寨遗址石灰墓灰浆成分分析[J].重庆师范大学学报(自然科学版),2014,31(1):42-47.
[3] 周虎.传统糯米灰浆在砖石质文物保护中的应用[D].合肥:安徽大学,2016.
[4] Liu X B, Ma X, Zhang B J. Analytical investigations of traditional masonry mortars from ancient city walls built during ming and qing dynasties in china[J]. International Journal of Architectural Heritage, 2016, 10(5): 663-673.
[5] 郭丽明,阳令明,张俭民,等.掺和料对传统糯米灰浆影响的实验研究[J].重庆建筑,2018,17(11):48-50.
[6] 李祖光,方世强,魏国锋,等.无机添加剂对糯米灰浆性能影响及机理研究[J].建筑材料学报,2013,16(3):462-468.
[7] 范明明,裴向军,杜杰,等.改性糯米灰浆基本物理力学特性及微观结构试验研究[J].硅酸盐通报,2020,39(5):1559-1565.
[8] Otero J, Charola A E, Starinieri V.Sticky rice-nanolime as a consolidation treatment for lime mortars[J].J Mater Sci, 2019, 54(14): 10217-10234.
[9] 谌文武,张起勇,刘宏伟,等.糯米浆温度对糯米灰浆加固遗址土的影响[J].岩石力学与工程学报,2017,36(s2):4244-4250.
[10] 纪晓佳,宋茂强,庞苗.糯米浆三合土的物理力学性能试验研究[J].建筑技术,2013,44(6):540-543.
[11] 孙冠东,焦华喆,陈新明,等.短切玄武岩纤维对混凝土的增强效果及机理[J].工业建筑,2018,48(1):118-121+183.
[12] Romualdi J P, Batson G B. Mechanics of crack arrest in concrete[J]. Journal of the Engineering Mechanics Division, 1963, 89(3): 147-168.
[13] 赵东拂,刘梅.高强混凝土高温后剩余强度及无损检测试验研究[J].建筑结构学报,2015,36(s2):365-372.
[14] Wei G F, Zhang H, Wang H M, et al. An experimental study on application of sticky rice-lime mortar in conservation of the stone tower in the Xiangji Temple[J]. Construction and Building Materials, 2012, 28(1): 624-632.

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