Petrophysical properties of limestones: influence on behaviour under different environmental conditions and applications

Sousa, Luís; Menningen, Johanna; López-Doncel, Rubén; Siegesmund, Siegfried

doi:10.1007/s12665-021-10064-3

Cited by 33 publications

(6 citation statements)

References 87 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the results, Gs, γ dry , γ sat , SDI, SRH, UPV, and UCS have direct linear relations, whereas n and W a have inverse linear relations to the other parameters. These results are comparable to the results presented by other authors [34,67,69,80].…”

Section: Engineering Properties Evaluationsupporting

confidence: 92%

Predicting the Engineering Properties of Rocks from Textural Characteristics Using Some Soft Computing Approaches

Fereidooni

Sousa

2022

Materials

Self Cite

View full text Add to dashboard Cite

Rock is used as a foundation and building material in many engineering projects and it is important to determine/predict its engineering properties before project construction. Petrographic and textural characteristics are useful parameters for predicting engineering properties of rocks in such applications. In this research, fifteen rock samples were taken and their engineering characteristics, namely dry and saturated unit weights, porosity, water absorption, slake durability index (SDI), Schmidt rebound hardness (SRH), ultrasonic P-wave velocity (UPV), and uniaxial compressive strength (UCS), were measured in the laboratory. Petrographic and textural characteristics of the rocks, determined from thin section and X-ray diffraction investigations, led to the evaluation of the texture coefficient (TC). Based on simple regression analysis (SRA), the TC values have direct relationships with density, SDI, SRH, UPV, and UCS, and inverse relationships with porosity and water absorption. Experimental models were developed using multiple regression analysis (MRA) and artificial neural network (ANN) to predict Id2, SRH, UPV, and UCS of the tested rocks from the values of TC. Some statistical parameters including Pearson regression coefficient (R), coefficient values account for (VAF), root mean square error (RMSE), mean absolute percentage error (MAPE), and performance index (PI) were calculated to assess the performances of the MRA and ANN models. The correlations between experimental and calculated values of Id2, SRH, UPV, and UCS indicated that predicted values of the ANN models are more valid than the MRA. Additionally, the residual error of the ANN models varies less than the MRA. Finally, it has been concluded that the SRA, MRA, and ANN methods can successfully predict the rock engineering properties from the TC.

show abstract

Section: Engineering Properties Evaluationsupporting

confidence: 92%

Predicting the Engineering Properties of Rocks from Textural Characteristics Using Some Soft Computing Approaches

Fereidooni

Sousa

2022

Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…On the basis of this understanding, we assumed that the pore system of the aged dolostone had changed and that its porosity had increased. This inference is supported by the result of the pore system determination through the nitrogen sorption method, which is discussed further in Section 3.3. properties of stone are usually distributed discretely within a certain range, reflecting the differences in properties among the minerals and the rock fabric (Wang et al, 2017, Sousa et al, 2021. In comparison with cemented detrital sedimentary rock, e.g., sandstone, which has complex mineral composition and large differences in grain size, dolostone has relatively simple mineral composition, comprising mainly calcium magnesium carbonate, such that the microstructure of the stone controls the dispersion of the physical/mechanical properties (Regnet et al, 2019).…”

Section: Evaluation Of the Physical And Mechanical Propertiesmentioning

confidence: 99%

Preliminary study on the impact of severe heat waves on dolostone weathering: implications for deterioration of carbonate rock-hewn heritage in SE China

Wang,

Zhang

2024

Environ Earth Sci

View full text Add to dashboard Cite

Climate change has led to many catastrophic events. In summer 2022, southern China witnessed a record-breaking heat wave. For example, Hangzhou, the capital city of Zhejiang Province (China), experienced a 2-month period of extreme hot weather. Rock outcrops exposed to strong solar radiation and high temperatures can experience rapid increase in temperature and repeated thermal cycles, which can affect the fabric and physical/mechanical properties of the rock and threaten the preservation of rock-hewn heritage. China has many examples of carbonate rock-hewn heritage with high historical and artistic value. Most are found in subtropical coastal areas with high heat and humidity, and where they might experience extreme high-intensity heat events in the future. Therefore, to study the impact of heat wave events on such examples of cultural heritage, a realistic heat wave aging test was performed in this study using samples of dolostone freshly quarried from near the West Lake Cultural Landscape of Hangzhou world heritage site. The nature of deterioration of the dolostone was evaluated using the capillary water absorption coefficient, surface hardness, and splitting tensile strength. The pore system of the dolostone samples was determined using the nitrogen adsorption method. Experimental results showed that the mechanical properties of the dolostone decreased moderately, while the water absorption capacity and porosity (micropores-mesopores) increased, indicating that high-temperature heating affects the physical and mechanical properties of dolostone to a certain extent. On the basis of the rapid rate of global warming and the increasingly frequent occurrence of extreme high-temperature events in China, the influence of thermal cycling on rock-hewn heritage deserves further attention.

show abstract

“…The proposed classification system defined in Table 4 is more a guideline than a list of mandatory requirements. In fact, many traded ornamental stones have porosity values higher than 11% [47,[79][80][81], to mention one of the rock properties.…”

Section: Proposal For Classification and Limit Values Of The Physical...mentioning

confidence: 99%

Guidelines for Natural Stone Products in Connection with European Standards

Strzałkowski,

Köken,

Sousa

2023

Materials

Self Cite

View full text Add to dashboard Cite

The selection of ornamental stones for specific applications requires technical guidance since it should be based on the durability, service life, and aesthetic value of the stones. In most cases, these fundamentals provide quantitative data on the usability and performance of ornamental stones. The present study attempts to put forward a quantitative classification system for natural stone products concerning critical rock properties. For this purpose, fundamental physical and mechanical rock properties are listed based on European standards. Then, minimum limit values are proposed for different applications of natural stone products based on retrospective analyses of numerous ornamental stone applications. The suggested limit values based on several physical and mechanical rock properties can guide relevant engineers to initially consider possible rock types for use as natural stones in a wide range of applications. In this context, it is believed that the present study contributes to the natural stone industry by discussing the minimum limit values for the consideration of a wide range of rock types possibly usable in the dimension stone industry.

show abstract

Petrophysical properties of limestones: influence on behaviour under different environmental conditions and applications

Cited by 33 publications

References 87 publications

Predicting the Engineering Properties of Rocks from Textural Characteristics Using Some Soft Computing Approaches

Predicting the Engineering Properties of Rocks from Textural Characteristics Using Some Soft Computing Approaches

Preliminary study on the impact of severe heat waves on dolostone weathering: implications for deterioration of carbonate rock-hewn heritage in SE China

Guidelines for Natural Stone Products in Connection with European Standards

Contact Info

Product

Resources

About