Characterization of sticky-rice lime binders from old masonry relics in north China: The primary contribution for conservation. (30th July 2020)

• Record Type: Journal Article
• Authors: Wang, Shanwei; Wang, Sheliang; Lu, Zhe; Yao, Wenjuan; Liu, Bo; Li, Binbin
• Is Part Of: Construction & building materials. Volume 250(2020)
• Publication Date: 2020-07-30
• Subjects: XRD X-ray diffraction -- FTIR Fourier transform infrared spectroscopy -- DSC-TG differential scanning calorimetry- thermal gravimetry -- SEM scanning electron microscopy -- SH surface hardness -- UPV ultrasonic pulse velocity -- CS compressive strength -- Po open porosity -- Ccc capillary absorption coefficient -- D1 D2 drying rate; Old sticky-rice lime binder -- Building restoration -- North China -- Characterization -- Physical- mechanical test -- Micro-mineralogical analysis; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2020.118887
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: Characteristics of old sticky-rice lime binders from literature were analyzed. 21 old sticky-rice lime binders from three regions were deeply characterized. Relationships between organic content and physico-mechanical indexes were discussed. The morphology of C-S-H, aragonite and plant fiber in old binders were presented. The evolution of formulation of traditional sticky-rice lime binder was investigated. Abstract: The application of traditional organic-inorganic composite lime-based materials, particularly sticky-rice lime binder, in sustainable restoration for old buildings, has attracted increasing attention in last decades. In present study, series of sticky-rice lime binders, sampled from thirteen old masonry relics involved three regions in 16–19th century, were fully characterized as primary. Specifically, micro-mineralogical and chemical characterization were determined by conducting XRD, FTIR, DSC-TG, SEM, iodine-starch and acid test, also mechanical-physical properties based on non-standard specimens including SH, UPV, CS, Po, Ccc D1 and D2. Furthermore, direct or inexplicitly relationships between organic content and enhanced physical-mechanical indicators were established. Finally, characterization results were analyzed and compared with deep gathering datasets from literature respecting characteristics of these binders of 6–19th century. Those analysis results provide valuable information for composite lime materials to expanding the database for formulating lime-based binders used in repairing intervention.