姜石合成水硬性石灰及物理力学性能研究

doi:10.13722/j.cnki.jrme.2017.1526

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1278 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要为了研究水硬性石灰的合成机制及其物理力学性能，以姜石为原料，利用X射线荧光光谱仪、X射线衍射仪、白光数字散斑测试系统和扫描电子显微镜等仪器对煅烧前后姜石的成分、不同龄期砂浆试件的物理力学性能和微观形貌等进行分析。结果表明：(1) 900 ℃煅烧8 h时，姜石主要成分为CaO，2CaO•SiO2和2CaO•Al2O3•SiO2，与欧洲水硬性石灰NHL5的成分相近。(2) 随着龄期的增加，水硬性石灰中CaCO3和1.5CaO•SiO2•xH2O(C-S-H)的含量逐渐增加，Ca(OH)2的含量逐渐减小，而2CaO•Al2O3•SiO2的含量不变。(3) 在龄期1～5 d早期养护阶段，试件收缩率随龄期呈线性规律增加；在龄期6～17 d中期养护阶段，收缩率随龄期缓慢增加；龄期超过18 d后收缩率保持不变。(4) 水硬性石灰的抗拉强度和抗压强度随龄期的增加而增加，力学强度达到欧洲水硬性石灰NHL5的标准。(5) 随着拉应力的增加，局部变形区的面积逐渐增大，相邻的局部变形区合并成应变局部化带，最终发展成宏观裂纹，试件发生破坏。(6) 随着龄期的增加，试件内的C-S-H和CaCO3相互连接，形成致密的空间网络状结构，使力学强度增加。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	杨建林1
	宋文伟1
	王来贵2
	张岩1
	张宇鳌1
	孙嘉阳1

关键词 ：建筑材料, 姜石, 水硬性石灰, 煅烧, 抗拉强度, 变形场, 微观机制

Abstract：The synthesis mechanism and physical-mechanical properties of hydraulic limes prepared from loess- doll were researched in this paper. The compositions of loess-dolls before and after calcination were investigated by means of X-ray fluorescence spectrometer and X-ray diffract meter. The physical-mechanical properties of mortar specimens were studied by using a deformation field inspection system with white light DSCM (Digital Speckle Correlation Method). The microscopic morphology of the specimens at different ages was characterized by scanning electron microscopy. The results show that the main ingredients of loess-dolls are CaO，2CaO•SiO2 and 2CaO•Al2O3•SiO2 after calcination of 8 hours at 900 ℃，which are similar to that of European hydraulic lime NHL5. The contents of CaCO3 and 1.5CaO•SiO2•xH2O(C-S-H) increase gradually during the curing process，but the content of Ca(OH)2 decreases gradually，and the content of 2CaO•Al2O3•SiO2 remains constant. At the early age of 1 to 5 days，the shrinkage rate increases linearly with the age. At the middle age of 6 to 17 days，the shrinkage rate increases slowly with the age. At the later age of 18 to 28 days，the shrinkage rate remains constant. The tensile and compressive strengths of hydraulic limes increase with the age，and the mechanical strengths of the samples meet the standard of NHL5. The area of deformation zone increases with the tensile stress at early stage of loading, the localization band occurs as the adjacent deformation zones merge，and the macro-cracks form and cause the sample to fail. A network structure is formed by the connection of C-S-H and CaCO3 in samples with the increasing of age，which enhances the mechanical strengths of samples.

Key words： building material loess-doll hydraulic lime calcination tensile strength deformation field micro-mechanism

引用本文:

杨建林1，宋文伟1，王来贵2，张岩1，张宇鳌1，孙嘉阳1. 姜石合成水硬性石灰及物理力学性能研究[J]. 岩石力学与工程学报, 2018, 37(7): 1766-1775.
YANG Jianlin1，SONG Wenwei 1，WANG Laigui2，ZHANG Yan1，ZHANG Yuao1，SUN Jiayang1. Research on the synthesis and physical-mechanical properties of hydraulic lime prepared from loess-doll. , 2018, 37(7): 1766-1775.

链接本文:

http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2017.1526 或 http://www.rockmech.org/CN/Y2018/V37/I7/1766

[1]	彭反三. 天然水硬性石灰[J]. 石灰，2009，(3)：44-48.(PENG Fansan. Natural hydraulic limes[J]. Lime，2009，(3)：44-48.(in Chinese))
[2]	MERTENS G，MADAU P，DURINCK D，et al. Quantitative mineralogical analysis of hydraulic limes by X-ray diffraction[J]. Cement and Concrete Research，2007，37(11)：1 524-1 530.
[5]	赵林毅，李黎，李最雄，等. 中国古代建筑中两种传统硅酸盐材料的研究[J]. 无机材料学报，2011，26(12)：1 327-1 334.(ZHAO Linyi，LI Li，LI Zuixiong，et al. Research on two traditional silicate materials in China?s ancient building[J]. Journal of Inorganic Materials，2011，26(12)：1 327-1 334.(in Chinese))
[3]	MARAVELAKI-KALAITZAKI P，BAKOLAS A，KARATASIOS I，et al. Hydraulic lime mortars for the restoration of historic masonry in Grete[J]. Cement and Concrete Research，2005，35(8)：1 577-1 586.
[7]	KAPSALAS P，MARAVELAKI-KALAITZAKI P，ZERVAKIS M，et al. Optical inspection for quantification of decay on stone surfaces[J]. NDT and E International，2007，40(1)：2-11.
[9]	VÁLEK J，VAN H E，VIANI A，et al. Determination of optimal burning temperature ranges for production of natural hydraulic limes[J]. Construction and Building Materials，2014，66：771-780.
[11]	LANAS J，PÉREZ BERNAL J L，BELLO M A，et al. Mechanical properties of natural hydraulic lime-based mortars[J]. Cement and Concrete Research，2004，34(12)：2 191-2 201.
[12]	李悦，于鹏超，刘金鹏，等. 改性水硬性石灰基材料的制备与耐久性[J]. 北京工业大学学报，2017，43(2)：269-277.(LI Yue，YU Pengchao，LIU Jinpeng，et al. Preparation and durability of modified hydraulic lime-based material[J]. Journal of Beijing University of Technology，2017，43(2)：269-277.(in Chinese))
[4]	BALTAZAR L G，HENRIQUES F M A，CIDADE M T. Contribution to the design of hydraulic lime-based grouts for masonry consolidation[J]. Journal of Civil Engineering and Management，2015，21(6)：698-709.
[6]	苏伯民，蒋德强，马想生，等. 布达拉宫等处壁画起甲原因的初步分析和修复材料的筛选[J]. 敦煌研究，2007，(5)：39-44.(SU Bomin，JIANG Deqiang，MA Xiangsheng，et al. Preliminary analysis on flaking wall paintings in Tibet and selection of restoration material[J]. Dunhuang Research，2007，(5)：39-44.(in Chinese))
[8]	周霄，胡源，王金华，等. 水硬石灰在花山岩画加固保护中的应用研究[J]. 文物保护与考古科学，2011，23(2)：1-7.(ZHOU Xiao，HU Yuan，WANG Jinhua，et al. Study on hydraulic lime mortar used for consolidation of Huashan rock paintings[J]. Sciences of Conservation and Archaeology，2011，23(2)：1-7.(in Chinese))
[10]	李黎，赵林毅，王金华，等. 我国古代建筑中两种传统硅酸盐材料的物理力学特性研究[J]. 岩石力学与工程学报，2011，30(10)： 2 120-2 127.(LI Li，ZHAO Linyi，WANG Jinhua，et al. Research on physical and mechanical characteristics of two traditional silicate materials in Chinese ancient buildings[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(10)：2 120-2 127.(in Chinese))
[16]	姜奉华，郑少华. 高铝水泥系统中硅铝酸二钙向Q相的转变[J]. 硅酸盐学报，2005，33(4)：462-466.(JIANG Fenghua，ZHENG Shaohua. Transformation of gehlenite into Q phase in high alumina cement system[J]. Journal of the Chinese Ceramic Society，2005，33(4)：462-466.(in Chinese))
[18]	李黎，赵林毅. 中国古代石灰类材料研究[M]. 北京：文物出版社，2015：183-186.(LI Li，ZHAO Linyi. Research on the ancient chinese lime materials[M]. Beijing：Cultural Relics Press，2015：183-186.(in Chinese))
[20]	高美奔，李天斌，孟陆波，等. 岩石变形破坏各阶段强度特征值确定方法[J]. 岩石力学与工程学报，2016，35(增2)：3 577-3 588. (GAO Meiben，LI Tianbin，MENG Lubo，et al. The method to identify characteristic stresses of rock in different stages during failure process[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(Supp.2)：3 577-3 588.(in Chinese))
[13]	GRILO J，SANTOS SILVA A，FARIA P，et al. Mechanical and mineralogical properties of natural hydraulic lime-metakaolin mortars in different curing conditions[J]. Construction and Building Materials， 2014，51：287-294.
[14]	叶大伦，胡建华. 实用无机物热力学数据手册[M]. 北京：冶金工业出版社，2002：6-923.(YE Dalun，HU Jianhua. Practical inorganic thermodynamic data handbook[M]. Beijing：Metallurgical Industry Press，2002：6-923.(in Chinese))
[15]	赵林毅，李黎，樊再轩，等. 古代墓室壁画地仗加固材料的室内研究[J]. 敦煌研究，2016，(2)：108-116.(ZHAO Linyi，LI Li，FAN Zaixuan，et al. Laboratory study on the conservation and restoration materials of wall paintings of ancient tombs[J]. Dunhuang Research，2016，(2)：108-116.(in Chinese))
[17]	张君，侯东伟，高原. 混凝土自收缩与干燥收缩的统一内因[J]. 清华大学学报：自然科学版，2010，50(9)：1 321-1 324.(ZHANG Jun，HOU Dongwei，GAO Yuan. Uniform driving force for autogenous and drying shrinkage of concrete[J]. Journal of Tsinghua University：Science and Technology，2010，50(9)：1 321-1 324.(in Chinese))
[19]	杨建林，王来贵，李喜林，等. 遇水-风干循环作用下泥岩断裂的微观机制研究[J]. 岩石力学与工程学报，2014，33(增2)：3 606- 3 612.(YANG Jianlin，WANG Laigui，LI Xilin，et al. Research on micro-fracture mechanism of mudstone after wet-dry cycles[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(Supp.2)：3 606-3 612.(in Chinese))
[21]	杨建林，王来贵，张鹏，等. 泥岩试件改性前后拉破坏实验研究[J]. 煤炭学报，2015，40(12)：2 812-2 819.(YANG Jianlin，WANG Laigui，ZHANG Peng，et al. Experimental research on tensile failure of mudstone samples before and after modification[J]. Journal of China Coal Society，2015，40(12)：2 812-2 819.(in Chinese))
[22]	苏承东，张盛，唐旭. 砂岩巴西劈裂疲劳破坏过程中变形与强度特征的试验研究[J]. 岩石力学与工程学报，2013，32(1)：41-48.(SU Chengdong，ZHANG Sheng，TANG Xu. Experimental research on deformation and strength characteristics in process of Brazilian split fatigue failure of sandstone[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(1)：41-48.(in Chinese))
[23]	郭传慧，魏建鹏，李巧玲，等. 不同矿物掺合料在复合胶凝材料中水化特性的对比研究[J]. 硅酸盐通报，2016，35(11)：3 782-3 789. (GUO Chuanhui，WEI Jianpeng，LI Qiaoling，et al. Comparing study on hydration properties of various mineral admixtures in composite cementitious materials[J]. Bulletin of the Chinese Ceramic Society，2016，35(11)：3 782-3 789.(in Chinese))