Podcast
Questions and Answers
Explain the term 'soil' as used in civil engineering.
Explain the term 'soil' as used in civil engineering.
Soil is a material composed of a natural accumulation of mineral particles, whose sizes range between specified limits, according to a conventional classification system. It is the result of the chemical-physical alteration of rocks due to weathering.
What are soil particles composed of and how do they differ from rocks?
What are soil particles composed of and how do they differ from rocks?
Soil particles are mainly composed of silica minerals, which are more resistant to chemical-physical attack by weathering than other minerals. They can be completely uncemented or weakly cemented, depending on the degree of alteration of the parent rock, whereas rocks are defined as materials with strong chemical bonds.
What is quartz and why is it significant in soil composition?
What is quartz and why is it significant in soil composition?
Quartz (SiO2) is a stable mineral primarily composed of rounded or prismatic particles of the order of a millimeter or less. It is almost insoluble in water, relatively acid proof, and the main mineral of silica sands. It is significant in soil composition due to its stability and resistance to chemical-physical attack by weathering.
How are the deformation and failure of rock masses governed?
How are the deformation and failure of rock masses governed?
Signup and view all the answers
What is the primary element that constitutes the Earth’s crust?
What is the primary element that constitutes the Earth’s crust?
Signup and view all the answers
Rock is defined as a material with strong ______
Rock is defined as a material with strong ______
Signup and view all the answers
Soil particles can be completely uncemented or weakly ______, depending on the degree of alteration of the parent rock
Soil particles can be completely uncemented or weakly ______, depending on the degree of alteration of the parent rock
Signup and view all the answers
Quartz (SiO2) is almost insoluble in ______, is relatively acid proof, and is a very stable mineral
Quartz (SiO2) is almost insoluble in ______, is relatively acid proof, and is a very stable mineral
Signup and view all the answers
It is primarily composed of rounded or prismatic particles of the order of a millimeter or less and is the main mineral of ______ sands, followed by feldspars
It is primarily composed of rounded or prismatic particles of the order of a millimeter or less and is the main mineral of ______ sands, followed by feldspars
Signup and view all the answers
Soil is the result of the chemical-physical alteration of rocks due to ______, rocks being the primary element that constitutes the Earth’s crust
Soil is the result of the chemical-physical alteration of rocks due to ______, rocks being the primary element that constitutes the Earth’s crust
Signup and view all the answers
Rock is defined as a material with strong chemical ______
Rock is defined as a material with strong chemical ______
Signup and view all the answers
Quartz (SiO2) is almost insoluble in ______, is relatively acid proof, and is a very stable mineral
Quartz (SiO2) is almost insoluble in ______, is relatively acid proof, and is a very stable mineral
Signup and view all the answers
The term “soil” is used in civil engineering to describe a material composed of a natural accumulation of mineral particles, whose sizes range between specified limits, according to a conventional ______ system
The term “soil” is used in civil engineering to describe a material composed of a natural accumulation of mineral particles, whose sizes range between specified limits, according to a conventional ______ system
Signup and view all the answers
Soil particles can be completely uncemented or weakly cemented, depending on the degree of alteration of the parent ______
Soil particles can be completely uncemented or weakly cemented, depending on the degree of alteration of the parent ______
Signup and view all the answers
The deformation and failure of rock masses are governed by the mechanical behavior of the pre-existing geometric discontinuities (______ or joints)
The deformation and failure of rock masses are governed by the mechanical behavior of the pre-existing geometric discontinuities (______ or joints)
Signup and view all the answers