Introduction to Construction Materials & Testing

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Questions and Answers

What is the main feature of RichLite countertops?

  • Capable of self-repair
  • Infused with carbon fiber
  • Created using liquid granite
  • Made of 70% recycled paper (correct)

How does self-repairing cement repair cracks in sidewalks or roadways?

  • Deploys microcapsules releasing a glue-like epoxy resin (correct)
  • Mixes with liquid granite to create a new surface layer
  • Releases microcapsules that fill cracks with carbon fiber
  • Absorbs heat to expand and close up the cracks

What is the primary use of Flexicomb in construction?

  • Creating flexible honeycomb structures for lighting fixtures (correct)
  • Making solid sheets for countertops
  • Building lightweight furniture
  • Reinforcing surfaces like fiberglass

What makes carbon fiber a desirable material for engineering structures?

<p>Lightweight, strong, and stiff properties (D)</p> Signup and view all the answers

Which industry was RichLite initially used in before being available for architectural purposes?

<p>Aerospace and sports industries (C)</p> Signup and view all the answers

What unique feature does liquid granite offer for construction materials?

<p>Custom moldability into various shapes (B)</p> Signup and view all the answers

What is the defining characteristic of polymers?

<p>Molecular structure consisting of similar units bonded together (C)</p> Signup and view all the answers

Which material is known for being lighter than steel, aluminum, concrete, and brick?

<p>Composites (C)</p> Signup and view all the answers

What distinguishes SensiTile from traditional tiles?

<p>Embedded with acrylic fiber-optic channels for light transfer (A)</p> Signup and view all the answers

What is the main feature of electrified wood?

<p>Can pass an electrical current through the whole thing (B)</p> Signup and view all the answers

What is a common property among metals, ceramics, polymers, and composites?

<p>Used in the creation of composites like concrete (D)</p> Signup and view all the answers

Which type of material consists of aggregate, cement, additives, and water?

<p>Composites (A)</p> Signup and view all the answers

What are engineering structures composed of?

<p>Engineering materials (B)</p> Signup and view all the answers

Why is it necessary for civil engineers to be conversant with the properties of materials of construction?

<p>To make final selection of building materials (A)</p> Signup and view all the answers

Which of the following is NOT a property that may be required in construction materials according to the text?

<p>Transparency (D)</p> Signup and view all the answers

What are the factors that form the basis of various systems of classifications of materials in material science and engineering?

<p>The chemical composition of the material (B)</p> Signup and view all the answers

What do the service conditions of buildings demand according to the text?

<p>A wide range of materials and various properties (D)</p> Signup and view all the answers

Why should civil engineers study materials properly before making the final selection for a particular use?

<p>To avoid material failure and ensure suitability (D)</p> Signup and view all the answers

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