Chemical Characterization of Lime-Based Binders in Historic Buildings of Latvia

Kiriloviča, Inta; Gulbe, Liene; Vītiņa, Inta; Igaune-Blumberga, Silvija

doi:10.1088/1757-899x/96/1/012074

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…(Ashurst, 1988). Historically in Latvia the medium hydraulic dolomitic lime mortar has been used in main part of cases (Krage & Vitina, 2005Kiriloviča, Gulbe, Vītiņa, & Igaune-Blumberga, 2015.…”

Section: Introductionmentioning

confidence: 99%

Chemical and physical investigations of historic mortars in St. John’s Church (Cesis, Latvia)

Kiriloviča

Karpe

2019

Modern Building Materials, Structures and Techniques (MBMST)

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This paper deals with the stone material investigation of St. John's Church, located in Cesis, the city in central region of Latvia. Following aspects were considered -chemical, physical and granulometrical characterization of historic mortars, as well as the level of soluble salts in the masonry. The chemical and physical properties of the historical mortars were characterized by visual observation, granulometric analysis, classical wet chemical analysis, XRD, SEM and hydro tests. The results showed that the historic mortars are based on two types of weakly hydraulic lime -calcitic and dolomitic -with brick dust additive. The main crystallized salt in the object was KNO3. The aim of the investigation was to provide compatibility of restoration materials and sustainability of the ancient building.

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Section: Introductionmentioning

confidence: 99%

Chemical and physical investigations of historic mortars in St. John’s Church (Cesis, Latvia)

Kiriloviča

Karpe

2019

Modern Building Materials, Structures and Techniques (MBMST)

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“…The C-S-H formed when using pozzolanic admixtures is an entirely amorphous phase, which is difficult to identify using XRD testing. Other minerals, such as quartz, gypsum, dolomite, muscovite, feldspar, etc., are often identified in tested historic mortars [8,17,18].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Physical and Mechanical Properties of the Mortar in the Historic Retaining Wall of the Gediminas Castle Hill (Vilnius, Lithuania)

et al. 2018

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This study analysed the results of the joint research into the building materials of the historic masonry of the retaining wall of the Gediminas Castle Hill dating back to the end of the 13th and beginning of the 14th centuries. Core samples for material testing were collected along the entire height of the retaining wall to assess its load bearing capacity. Boreholes were drilled 600–1000 mm from the exterior of the wall to determine the properties of the ceramic bricks and lime mortar that were not affected by external factors. The analysis of the microstructure and chemical composition, mechanical and physical properties of the ceramic bricks and lime mortar is presented. The high compressive strength (8.5 MPa) of the lime mortar was the result of using hydraulic lime and crumbs of ceramic bricks as mortar aggregate.

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Modified roman cement

Nikolay

Ruslan

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The purpose of this research is to equip the roman cement with properties exceeding the properties of the known analogies. Roman cement’s compositions modified by chemical and mineral additives have been developed and proposed. The mode of calcinations of carbonate and clay raw material with high MgO has been optimized. As a result, the durability of roman cement from 15 to 22 MPa has been received. Mineral additives like slag, zeolite breed and clay dust were chosen and used that rose the durability from 22 to 28 MPa. Plasticizers and hardening accelerators were chosen and used that allowed rising the durability up to 35 MPa relatively. A combination of complex additives have been proposed. To optimize the mode of calcinations and to define a combination of complex additives the method of mathematical planning was used. The dependence of binder’s strength from the temperature, durability of calcinations, saturation rate, type and consistence of modified additives has been acquired. Modified roman cement has the advantages if compared with known analogies and has the following features: strength 35MPa, normal consistency 30%, setting time is not earlier than 35 minutes, the end is not late than 420 minutes, softening rate is 0.98. Modified roman cement can be successfully used to produce dry building mixtures (mortar’s strength 5,10, 15 MPA), low strength mortars (strength 5,7.5 MPa) and concret (strength 10, 15, 20, 25 MPa) and other building materials. Structure of carbonate raw material and clay for the production of roman cement is recommended.

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Chemical Characterization of Lime-Based Binders in Historic Buildings of Latvia

Cited by 3 publications

References 10 publications

Chemical and physical investigations of historic mortars in St. John’s Church (Cesis, Latvia)

Chemical and physical investigations of historic mortars in St. John’s Church (Cesis, Latvia)

Analysis of Physical and Mechanical Properties of the Mortar in the Historic Retaining Wall of the Gediminas Castle Hill (Vilnius, Lithuania)

Modified roman cement

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