Please use this identifier to cite or link to this item:
Title: Opal-A rich additives used in ancient lime mortars
Authors: Tunçoku, Selim Sarp
Caner Saltık, Emine N.
Keywords: Mortar
Ancient masonry
Publisher: Elsevier Ltd.
Source: Tunçoku, S. S., and Caner Saltık, E. N. (2006). Opal-A rich additives used in ancient lime mortars. Cement and Concrete Research, 36(10), 1886-1893. doi:10.1016/j.cemconres.2006.06.012
Abstract: Ancient stone and brick masonry mortars from three monuments in Konya, Central Anatolia dated to the Anatolian Selçuk Period (12th and 13th centuries AD) were examined for their raw material composition and durability characteristics to understand some characteristics of medieval mortar technology. Optical microscopy, XRD, SEM, EDX, FTIR and TGA analyses revealed that the mortars contained high percentage of lime binder totally carbonated into micritic calcite. Coarse and medium aggregates were mainly composed of sandstone and metamorphic rock fragments, quartz, feldspar and mica minerals. Opal-A was found in considerable amounts in the fine aggregates, likely not derived from the coarser ones but added separately. Pozzolanic activity of the fine aggregates was determined by conductometric measurements. Their ability to form C-S-H was observed by treating them with saturated Ca(OH)2 solution. Bulk density and total porosity measurements showed that the mortars were highly porous due to the use of high amount of lime. On the other hand, they possessed sufficient mechanical strength. Mechanical properties were determined by point load tests and ultrasonic pulse velocity measurements. They were expressed as uniaxial compressive strength (UCS) and modulus of elasticity (Emod) in MPa. The results were also discussed in terms of durability characteristics of the mortars. They were expressed with the use of uniaxial compressive strengths in dry and wet states, and total porosity values. The mortars were considered to have high durability to wetting and drying cycles but had poor durability to the crystallization of water-soluble salts.
ISSN: 0008-8846
Appears in Collections:Conservation and Restoration of Cultural Heritage / Kültür Varlıklarını Koruma ve Onarım
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
2185.pdfMakale1.44 MBAdobe PDFThumbnail
Show full item record

CORE Recommender


checked on May 11, 2024


checked on May 24, 2024

Page view(s)

checked on May 27, 2024


checked on May 27, 2024

Google ScholarTM



Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.