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Properties of Portland Cement Based Concrete

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Properties of Portland Cement Based Concrete

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Questions and Answers

What is one of the main weaknesses of concrete?

Resistance to tensile forces (correct)

Resistance to compressive forces

Rigidity on setting and curing

Ability to resist shear forces

What is used to overcome the weaknesses of concrete in resisting tensile forces?

Cement-based additives

Aluminum reinforcement bars

High strength steel wires

Reinforcing bars of steel (correct)

What property of concrete makes it brittle in nature?

Relative ease of formability

Resistance to compressive forces

Rigidity on setting and curing

Weakness in resisting tensile forces (correct)

In the case of prestressed concrete, what is used to overcome the weaknesses?

High strength steel wires Signup and view all the answers

What has given expression to man's imagination and sense of elegance in concrete structures?

The utility and elegance of concrete structures Signup and view all the answers

What presents challenges for the construction engineer regarding concrete structures?

Study of the conditions and assessment of efficiency Signup and view all the answers

What is the primary focus of the study mentioned in the text?

The causes of short-lived structuring of contemporary buildings Signup and view all the answers

During which period did the reinforced concrete structures become successfully implemented in housing and community construction in Bulgaria?

First three-four decades of the 20th century Signup and view all the answers

What does the service life of structures refer to?

The load or deformation level at which irreversible failures of the bearing structure may occur Signup and view all the answers

Which country enforced the mass usage of prefabricated steel reinforced concrete constructions in the Eastern block after World War II?

Russia Signup and view all the answers

What is the main focus of the expanded framework mentioned in the text?

Design fields Signup and view all the answers

What is the theoretical time period known as for the life expectancy of structures?

Service life of structures Signup and view all the answers

What is the primary requirement enforced by modern new functions for the structures, as mentioned in the text?

Knowledge of different technological methods of reconstruction Signup and view all the answers

What does planned obsolescence refer to according to the text?

Economic reality and part of an expanded framework Signup and view all the answers

What is the main focus of the literature cited in relation to short-lived structuring?

Experimental recommendations Signup and view all the answers

What are some requirements for the construction engineers, based on the text?

Knowledge of different technological methods and understanding load-bearing capacity Signup and view all the answers