FAR EASTERN UNIVERSITY: Concrete Module Overview

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In which year was the book 'Construction Databook: Construction materials and equipment' published?

2021

2010 (correct)

2022

2015

What is the meaning of the Latin word 'concretus'?

To grow together (correct)

To build high

To design beautifully

To shape perfectly

When was the Roman Empire active?

From 1000 A.D. to 1500 A.D.

From 100 A.D. to 500 A.D.

From 500 B.C. to 100 A.D.

From 20 B.C. to 200 A.D. (correct)

What is the purpose of covering concrete with sawdust, sand, or soil during curing?

To control the variation of the surface concrete Signup and view all the answers

What is the main reason why natural curing is not suitable for structurally important elements?

Risk of cracking due to high evaporation rate Signup and view all the answers

What is the purpose of using large electric blankets in electrical curing?

To heat the slab surfaces Signup and view all the answers

What is the effect of high evaporation rate on the concrete?

It increases the risk of cracking Signup and view all the answers

What is the characteristic of the current used in electrical curing?

High current and low voltage Signup and view all the answers

What is the condition required for natural curing to be effective?

Low evaporation rate and no high heat Signup and view all the answers

What is the consequence of inadequate moisture for the hydration process in concrete?

Reduced durability of the concrete Signup and view all the answers

What is the primary purpose of the concrete slump test?

To assess the workability or consistency of concrete mix Signup and view all the answers

How many layers of concrete are placed in the mould during the slump test?

3 layers Signup and view all the answers

What is the unit of measurement for the slump test?

Centimeters Signup and view all the answers

What is the term used to describe the only measurable slump in the test?

True Slump Signup and view all the answers

Since what year has the slump test been widely used for workability tests?

1922 Signup and view all the answers

What is blast furnace slag, a byproduct of iron manufacture, classified as?

A hydraulic cement Signup and view all the answers

What is the purpose of grading a concrete aggregate by passing a sample through a standard assortment of sieves?

To compare the particle size distribution of an actual aggregate with that of an ideal aggregate Signup and view all the answers

What is the significance of the maximum aggregate size in a concrete mix?

It must be small enough to pass easily between the most closely spaced reinforcing bars and fit into the formwork Signup and view all the answers

What is the characteristic of coarse-grained aggregates?

They will not pass through a sieve with 4.75 mm openings Signup and view all the answers

What is the advantage of using larger aggregate pieces in a concrete mix?

They are more economical due to less surface area of the particles Signup and view all the answers

What is the purpose of adding blast furnace slag to a concrete mix?

To improve the workability and increase the strength of the concrete Signup and view all the answers