A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mechanical characterization of historical rubble stone masonry and its correlation with the masonry quality assessment
Highlights Diverse procedures assessed the mechanical properties of rubble stone masonry walls. IBCC and MQI were applied on a Portuguese monument (World Heritage Cultural Asset). Mechanical properties from IBCC and MQI correlate well with double flat-jacks results. Additional quantitative criteria based on simple tests/procedures were proposed for MQI. Rebound hammer tests attest the quality of materials and support MQI classifications.
Abstract The paper presents a study on the mechanical characterization of eight rubble stone masonry walls from different structures of a Portuguese monument and on the assessment of their quality using the Masonry Quality Index (MQI) and the Italian Building Code Commentary (IBCC 2019). Rebound hammer tests were used to evaluate the quality of stone units and mortar joints, and flat-jack tests to assess the mechanical properties of masonry walls. The results allowed to propose new quantitative criteria to rate the quality of mortars and stones in MQI and to support the decision of applying the multiplication factor concerning the quality of mortars in IBCC 2019 methodology. Image processing was used to quantify several features of masonry walls and introduce new quantitative criteria on MQI. The results identified the amount of mortar, the mortar quality, the shape features of stone units and the horizontal alignment of joints as key parameters in the mechanical resistance of rubble masonry made of irregular hard stone and lime-based mortars. The mechanical properties obtained by IBCC 2019, MQI and double flat-jacks tests showed good correlations, highlighting the advantages that come from the quality assessment of masonry to estimate masonry mechanical properties.
Mechanical characterization of historical rubble stone masonry and its correlation with the masonry quality assessment
Highlights Diverse procedures assessed the mechanical properties of rubble stone masonry walls. IBCC and MQI were applied on a Portuguese monument (World Heritage Cultural Asset). Mechanical properties from IBCC and MQI correlate well with double flat-jacks results. Additional quantitative criteria based on simple tests/procedures were proposed for MQI. Rebound hammer tests attest the quality of materials and support MQI classifications.
Abstract The paper presents a study on the mechanical characterization of eight rubble stone masonry walls from different structures of a Portuguese monument and on the assessment of their quality using the Masonry Quality Index (MQI) and the Italian Building Code Commentary (IBCC 2019). Rebound hammer tests were used to evaluate the quality of stone units and mortar joints, and flat-jack tests to assess the mechanical properties of masonry walls. The results allowed to propose new quantitative criteria to rate the quality of mortars and stones in MQI and to support the decision of applying the multiplication factor concerning the quality of mortars in IBCC 2019 methodology. Image processing was used to quantify several features of masonry walls and introduce new quantitative criteria on MQI. The results identified the amount of mortar, the mortar quality, the shape features of stone units and the horizontal alignment of joints as key parameters in the mechanical resistance of rubble masonry made of irregular hard stone and lime-based mortars. The mechanical properties obtained by IBCC 2019, MQI and double flat-jacks tests showed good correlations, highlighting the advantages that come from the quality assessment of masonry to estimate masonry mechanical properties.
Mechanical characterization of historical rubble stone masonry and its correlation with the masonry quality assessment
Ferreira Pinto, A.P. (author) / Sena da Fonseca, B. (author) / Vaz Silva, D. (author)
2020-12-23
Article (Journal)
Electronic Resource
English
| Emerald Group Publishing | 2010
| British Library Online Contents | 2010
| Taylor & Francis Verlag | 2023