Effect of inorganic silicate consolidation on the mechanical and durability performance of sandstone used in historical sites

doi:10.1016/j.conbuildmat.2016.06.008

	Effect of inorganic silicate consolidation on the mechanical and durability performance of sandstone used in historical sites
	Chen, WW; Dai, PF; Yuan, PB; Zhang, JK; Chen, WW (reprint author), Lanzhou Univ, Minist Educ, Key Lab Mech Disaster & Environm Western China, Lanzhou 730000, Peoples R China.
刊名	CONSTRUCTION AND BUILDING MATERIALS
	2016-09-15
卷号	121 页码:445-452
关键词	Sandstone Potassium silicate solution Consolidation effectiveness Inorganic consolidant Mechanical strength Salt weathering
ISSN号	0950-0618
DOI	10.1016/j.conbuildmat.2016.06.008
文献子类	Article
英文摘要	Sandstone was widely used in the construction of monuments and sculptures in ancient times; numerous archaeological sites still remain along the Silk Road. Deterioration of the archaeological sites is one of the most serious problems that needs urgent attention. Organosilicon material has been considered to be an effective type of chemical consolidant for heritage structures that need strengthening. In recent years, the negative effects of organic materials have gradually been realized, e.g., shorter life and poorer compatibility. Therefore, inorganic materials have been re-evaluated by conservation researchers because of their long-lasting effects and good compatibility with stone substrates. An innovative inorganic silicate solution based on a potassium silicate solution, a high mole ratio potassium silicate solution, was developed. This paper describes the characterization of the new material as well as results from testing after treatment with different concentrations and consolidation times. In this study, the authors aim to explore if the newly developed inorganic consolidant has potential for future use in sandstone treatment. The effectiveness of the new inorganic consolidant was evaluated in terms of absorbed consolidant amount, mechanical properties (e.g., surface hardness, ultrasonic wave velocity, elasticity modulus and compressive strength modulus), and salt crystallization resistance. The treated groups showed better mechanical strength than the control group. The salt-resistant ability of the treated samples was also greatly improved. According to the laboratory tests, the new inorganic silicon consolidant holds great potential for reinforcing weathered sandstone. (C) 2016 Elsevier Ltd. All rights reserved.
学科主题	Construction & Building Technology ; Engineering ; Materials Science
出版地	OXFORD
资助项目	国家科技支撑计划
项目编号	Chinese National Science and Technology Ministry [2013BAK01B01]
语种	英语
WOS记录号	WOS:000380597900046
资助机构	MOST
内容类型	期刊论文
源URL	[http://ir.lzu.edu.cn/handle/262010/182559]
专题	土木工程与力学学院_期刊论文
通讯作者	Chen, WW (reprint author), Lanzhou Univ, Minist Educ, Key Lab Mech Disaster & Environm Western China, Lanzhou 730000, Peoples R China.
推荐引用方式 GB/T 7714	Chen, WW,Dai, PF,Yuan, PB,et al. Effect of inorganic silicate consolidation on the mechanical and durability performance of sandstone used in historical sites[J]. CONSTRUCTION AND BUILDING MATERIALS,2016,121:445-452.
APA	Chen, WW,Dai, PF,Yuan, PB,Zhang, JK,&Chen, WW .(2016).Effect of inorganic silicate consolidation on the mechanical and durability performance of sandstone used in historical sites.CONSTRUCTION AND BUILDING MATERIALS,121,445-452.
MLA	Chen, WW,et al."Effect of inorganic silicate consolidation on the mechanical and durability performance of sandstone used in historical sites".CONSTRUCTION AND BUILDING MATERIALS 121(2016):445-452.