Petrographic characteristics of intrusive rocks as an evaluation tool of their technical properties

Johansson, Eva; Miškovský, Karel; Bergknut, Magnus; Šachlová, Šarka

doi:10.1144/sp416.19

Cited by 10 publications

(3 citation statements)

References 26 publications

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“…The MD for natural aggregates i.e., basalt, granitoid and gabbroid rocks has been reported within the margin 8-9%. [40,41]. Another study have also reported the MD values for natural aggregates used in different applications within the range ≤ 13-30% [42].…”

Section: The Los Angeles and Micro-deval Performancementioning

confidence: 99%

Technical and Environmental Properties of Recycled Aggregates Produced from Concrete Sludge and Excavation Materials

Adomako¹,

Engelsen²,

Døssland³

et al. 2023

Preprint

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Section: The Los Angeles and Micro-deval Performancementioning

confidence: 99%

Technical and Environmental Properties of Recycled Aggregates Produced from Concrete Sludge and Excavation Materials

Adomako¹,

Engelsen²,

Døssland³

et al. 2023

Preprint

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“…statue) in a certain environment over a desired period of time (the concept of design life). Understanding the complexity of relationships between various petrographical characteristics and physical and/or technological properties is important to secure the stability and proper function of the construction and also to provide sufficient durability (Calia et al 2015;Johansson et al 2015;Modestou et al 2015;Vázquez et al 2015). Fig.…”

Section: General Thinking On Fundamental Attributes Of Geomaterials Fmentioning

confidence: 99%

Geomaterials in construction and their sustainability: understanding their role in modern society

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Theodoridou

et al. 2016

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Inorganic raw materials, here termed geomaterials, derived from the Earth's crust and used in construction after appropriate processing make a genetically and functionally varied group of mineral resources. Although their basic functions have remained almost unchanged for centuries, some new attributes, meanings and impacts on society are still emerging. Geomaterials for construction were among the first mineral raw materials exploited, processed and used by man. They helped in the development of technological and artistic skills of humankind. Accessibility, workability and serviceability are considered here as their main functional attributes, being connected with man's skills to find their occurrence, extract and process them, and then use them in the correct way. However, serviceability is a more complex functional attribute as it also encompasses durability of a material in construction. Durability, that is the ability to withstand the action of weathering/decay processes, is an expression of the dynamic interactions between material and the surrounding environment encompassing not only gradual adaptation of materials to current environmental conditions, but also interactions between materials in construction, the history of maintenance/conservation of the structure and the impact of a polluted environment. In the modern world, sustainable use of raw materials, specifically those exploited in the largest volumes such as geomaterials for construction, raises questions of reducing extraction of primary resources and thus minimizing impacts on natural systems, and also employment of materials and technologies to produce less emission of deleterious substances in to the atmosphere. Use of secondary materials such as waste produced during extraction of primary raw materials and/or re-use of existing structural elements and re-or down-cycling can be considered as modern approaches to reducing the pressure on primary resources.

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“…In ballast petrographic test, by identifying inherent physical properties of the parent rocks and minerals in ballast aggregate and estimating percentage composition, it is capable to map rock source based on the classification and mineralogy, evaluate chemical activities, and provide the clues of the susceptibility to weathering, soundness, hardness and toughness properties (Johansson, Lukschová et al 2011).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Developing Track Ballast Characteristic Guideline In Order To Evaluate Its Performance

Sadeghi¹,

Zakeri²,

Najar³

2016

International Journal of Railway

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In spite of recent advances in ballasted railway track, the correct choice of ballast for rail track is still considered critical because aggregates progressively deteriorate under traffic loading and environmental exposures. Various ballast requirements, functions and duties have been defined by researchers, railway companies and countries' regulations even though it needs to be integrated to make following proper decision during track operation and maintenance. A proper understanding of ballast properties and suitable tests are prerequisites for minimizing maintenance costs. This paper presents a capable classification for ballast characteristics which need to be investigated beforehand to such a way, firstly to assign ballast functions, secondly need to clarify ballast requirements, thirdly to map appropriate tests to evaluate ballast characteristics and then it must be such that if ballast cannot carry out one of these duties, be able to call there is ballast defect. The paper is structured in order to achieve these objectives.

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Petrographic characteristics of intrusive rocks as an evaluation tool of their technical properties

Cited by 10 publications

References 26 publications

Technical and Environmental Properties of Recycled Aggregates Produced from Concrete Sludge and Excavation Materials

Technical and Environmental Properties of Recycled Aggregates Produced from Concrete Sludge and Excavation Materials

Geomaterials in construction and their sustainability: understanding their role in modern society

Developing Track Ballast Characteristic Guideline In Order To Evaluate Its Performance

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