Abstract
A necessity of compatible material to historical romancement for restoration needs has led to research of artificially made binders from mixtures of clay and dolomite. Low temperature hydraulic binder or so called dolomitic romancement synthesis of mixture composed from local Quaternary period clay and dolomite (both in powder state) in mass ratio 24:76 is discussed in this paper. The chemical composition of the raw materials was analyzed. Specimens were prepared by homogenizing the mixture of requisite amounts of clay and dolomite in dry state and shaping samples measuring 56x26x6 mm by semidry pressing. After firing at temperatures between 650 and 1050°C crystalline phases formed in samples were determined by XRD. Afterwards, water was added to the samples and formation of new crystalline phases was detected in the period of 28 days. Natural dolomitic marl was treated at the same conditions in order to compare the crystalline phases formed in naturally and artificially made binders. DOI: http://dx.doi.org/10.5755/j01.sace.1.2.2838
Highlights
One of historically widely used low-temperature binders has been romancement – i.e. natural cement, produced from clay containing carbonatic rocks
Historical romancement was a natural hydraulic binder produced by firing marl below its’ sintering temperature (800–1200°C) and grinding
It is calculated according to loss of ignition (LOI) at 1000 °C, which corresponds to CO2 that is released from carbonates
Summary
One of historically widely used low-temperature binders has been romancement – i.e. natural cement, produced from clay containing carbonatic rocks. Historical romancement was a natural hydraulic binder produced by firing marl (mineral composed from 60–75 % calcite or dolomite and 25–40 % clay) below its’ sintering temperature (800–1200°C) and grinding. This type of binder firstly was patented by James Parker in 1796. Romancement distinguished itself from other hydraulic binders by short setting time (usually 7–20 min), warm brown color and good durability. The aim of given research was to synthesize a hydraulic binder with chemical and mineralogical composition close to historical dolomitic romancement
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Sustainable Architecture and Civil Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
