Podcast
Questions and Answers
What can cause blistering in asphalt and bitumen layers?
What can cause blistering in asphalt and bitumen layers?
- Biological agencies
- Trapped moisture vapor pressure (correct)
- Direct exposure to moisture
- Contact with oil
Which of the following is true about mastics?
Which of the following is true about mastics?
- They harden with age
- Remain pliable for a number of years (correct)
- Can accommodate large structural movements
- Are only used for small cracks
What should be correctly specified and detailed for long term durability of sealants?
What should be correctly specified and detailed for long term durability of sealants?
- Poor material preparation
- Correct gap width, minimum depth, adhesive properties, and surface preparation (correct)
- Maximum depth
- High gap width
Which material is unacceptable for accommodating the movement associated with large structural elements?
Which material is unacceptable for accommodating the movement associated with large structural elements?
What metals are commonly used in buildings according to the text?
What metals are commonly used in buildings according to the text?
Which of the following is NOT affected by biological agencies or pollution?
Which of the following is NOT affected by biological agencies or pollution?
What is a common cause of loss of adhesion in cementitious waterproofing systems?
What is a common cause of loss of adhesion in cementitious waterproofing systems?
What can lead to the embrittlement of membrane in factory-produced membranes?
What can lead to the embrittlement of membrane in factory-produced membranes?
What is a common cause of leakage in polymer roofing?
What is a common cause of leakage in polymer roofing?
What can cause blistering in liquid membranes?
What can cause blistering in liquid membranes?
What issue arises from cracks causing shrinkage deflection in structural substrate panels?
What issue arises from cracks causing shrinkage deflection in structural substrate panels?
What is a likely consequence of improper bonding material in cementitious waterproofing systems?
What is a likely consequence of improper bonding material in cementitious waterproofing systems?
What property of bitumen makes it a suitable material for waterproofing?
What property of bitumen makes it a suitable material for waterproofing?
How does asphalt react when exposed to sunlight and heat?
How does asphalt react when exposed to sunlight and heat?
What should be incorporated between asphalt and supporting structure in horizontal situations to allow for differential movements?
What should be incorporated between asphalt and supporting structure in horizontal situations to allow for differential movements?
To prevent cracking of asphalt due to continuous expansion and contraction, what should be included in vertical applications?
To prevent cracking of asphalt due to continuous expansion and contraction, what should be included in vertical applications?
What should be specified to lessen the effect of sunlight and solar heat on asphalt?
What should be specified to lessen the effect of sunlight and solar heat on asphalt?
How can mastic asphalt be protected from impact damage?
How can mastic asphalt be protected from impact damage?
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