Thermal stress in the Apuan marbles: Relationship between microstructure and petrophysical characteristics

Cantisani, Emma; Pecchioni, Elena; Fratini, Fabio; Garzonio, Carlo Alberto; Malesani, Piergiorgio; Molli, Giancarlo

doi:10.1016/j.ijrmms.2008.06.005

Cited by 54 publications

(27 citation statements)

References 28 publications

(35 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The chemical composition of the powder reflects the mineralogical constituents of the different marble varieties. The grains are essentially composed by calcite (usually 95-99%), mainly in sand-to-silt sizes, with a small percentage (1-3%) of dolomite [15,22,23]. Silicates, primarily quartz, muscovite and/or chlorite and clay minerals, are often present in minor amounts [15,21].…”

Section: Chemical and Physical Features Of Marmettola And Karst Sprinmentioning

confidence: 99%

Marble Slurry’s Impact on Groundwater: The Case Study of the Apuan Alps Karst Aquifers

Piccini

Lorenzo

Costagliola

et al. 2019

Water

View full text Add to dashboard Cite

Modern sawing techniques employed in ornamental stones’ exploitation produce large amounts of slurry that can be potentially diffused into the environment by runoff water. Slurry produced by limestone and marble quarrying can impact local karst aquifers, negatively affecting the groundwater quality and generating a remarkable environmental and economic damage. A very representative case-study is that of the Apuan Alps (north-western Tuscany, Italy) because of the intensive marble quarrying activity. The Apuan Alps region extends over about 650 km2; it hosts several quarries, known all over the world for the quality of the marble extracted, and a karst aquifer producing about 70,000 m3/day of high-quality water used directly for domestic purposes almost without treatments. In addition, Apuan Alps are an extraordinary area of natural and cultural heritage hosting many caves (about 1200), karst springs and geosites of international and national interest. During intense rain events, carbonate slurry systematically reaches the karst springs, making them temporarily unsuitable for domestic uses. In addition, the deterioration of the water quality threatens all the hypogean fauna living in the caves. This paper provides preliminary insights of the hydrological and biological indicators that can offer information about the impact of the marble quarrying activities on groundwater resources, karst habitats and their biodiversity.

show abstract

Section: Chemical and Physical Features Of Marmettola And Karst Sprinmentioning

confidence: 99%

Marble Slurry’s Impact on Groundwater: The Case Study of the Apuan Alps Karst Aquifers

Piccini

Lorenzo

Costagliola

et al. 2019

Water

View full text Add to dashboard Cite

show abstract

“…Carrara marble was formed during the Apennine orogeny (Cantisani et al, ; Leiss & Molli, ). Lower to middle Liassic carbonate platform sequences were deformed and metamorphosed under greenschist facies conditions (Oesterling et al, ) and exposed in the Carrara nappe as a tectonic window (Leiss & Molli, ).…”

Section: Methodsmentioning

confidence: 99%

Subcritical Crack Growth and Progressive Failure in Carrara Marble Under Wet and Dry Conditions

2018

View full text Add to dashboard Cite

Our concept of progressive rock slope failures is on the one hand embedded in aggregated subcritical crack growth mechanisms and on the other sensitive to environmental conditions, especially water. To anticipate failure dynamics in rock slopes, it is a key requirement to reveal the influence of water on subcritical crack growth mechanisms and material properties. We present experimental data on the time-dependent deformation of an exemplary rock, Carrara marble. We employed inverted single-edge notch bending creep tests on large Carrara marble samples to mimic an open joint system with controlled water supply. Constant stress was applied in two steps approaching 22-85% of a previously determined critical baseline stress. Introducing calcite-saturated water to subcritical stressed samples caused an immediate increase in strain by up to an order of magnitude. Time-dependent accumulation of inelastic damage at the notch tip occurred in wet and dry samples at all load levels. Subcritical crack growth and the evolution of localized intergranular fractures are enhanced if water is present and readily approach tertiary creep when loaded above 80%. The immediate strain response is attributed to the reduction of surface energy and diffusion of the water into the rock. The resultant more compliant and weaker rheology can even turn the subcritical stress into a critical state. Over time, subcritical and chemically enhanced mechanisms progressively alter especially grain boundaries, which become the key controls of progressive failure in Carrara marble. 1986; Withers, 2015; Figure 1b). These intermittent stress-dependent dynamics lead to a local competition VOIGTLÄNDER ET AL. 3780

show abstract

“…Other authors have shown that temperature variation is one of the main factors influencing the properties and physical integrity of stone materials. The thermal conductivity of the rocks is directly related to its consistency and, in general, increases with the decrease in porosity [13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Development of Eco-Friendly and Self-Cleaning Lime-Pozzolan Plasters for Bio-Construction and Cultural Heritage

et al. 2020

View full text Add to dashboard Cite

Nowadays, the design and use of multi-functional mortars has increased significantly, with interesting applications in the green building and cultural heritage conservation sectors. A key point for a correct adoption of these innovative materials is their behavior along time and their resistance to the weathering. The objective of this project was to define the performance and durability of innovative mortars, in order to use them correctly and to avoid irreparable damage over time. For the development of this project, lime–metakaolin and hydraulic lime–metakaolin based mortars (hereinafter called A, B), as well as A and B with the addition of nano-TiO2 and perlite (hereinafter referred to as A+, B+), have been tested. The focus of the work was to carry out preliminary tests to evaluate the performance and durability characteristics of these mortars, verifying their behavior over time through exposure to artificial aging cycles, including thermal shock cycles in saline solution aerosols, freeze cycles in vapor aerosol, and aging by heat treatment at high temperatures. Before and after each artificial aging cycle, weight measurements, and macroscopic and microscopic observations were performed in order to evaluate possible structural changes. The characteristics of the mortars were assessed by determination of the apparent volume mass, mechanical properties, such as compressive and bending strength, water absorption, whereas their self-cleaning capacity was measured by methylene blue degradation test under UV and solar irradiation. The results obtained show degradation effects in the mortar samples due to aging after each test, and indicated that mortars with perlite and nano-TiO2 are the best-performing ones, both from the durability and energetic point of view, rendering them suitable for applications in the green building sector and the conservation of cultural heritage.

show abstract

Thermal stress in the Apuan marbles: Relationship between microstructure and petrophysical characteristics

Cited by 54 publications

References 28 publications

Marble Slurry’s Impact on Groundwater: The Case Study of the Apuan Alps Karst Aquifers

Marble Slurry’s Impact on Groundwater: The Case Study of the Apuan Alps Karst Aquifers

Subcritical Crack Growth and Progressive Failure in Carrara Marble Under Wet and Dry Conditions

Development of Eco-Friendly and Self-Cleaning Lime-Pozzolan Plasters for Bio-Construction and Cultural Heritage

Contact Info

Product

Resources

About