Computer · Building Materials and Construction
Which of the following waterproofing/DPC materials does NOT decay with age and requires surface treatment with sand or scoring to provide a mortar key?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Preformed DPC
- 2Hessian based bitumen
- 3Mastic asphalt
- 4Bitumen and pitch polymer✓
Correct answer
Bitumen and pitch polymer
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