Nanotechnology in Construction
The application of nano-scale materials and coatings to improve the strength, durability, and energy efficiency of construction materials.
Negative Float
A scheduling condition where an activity’s late start date is earlier than its early start date, indicating a project delay that needs corrective action.
Net Zero Energy Building (NZEB)
A structure designed to produce as much energy as it consumes over a year, typically through renewable energy sources and efficiency measures.
Noise Abatement
Techniques and materials used in construction to minimize sound transmission and reduce noise pollution from construction activities.
Non-Conformance Report (NCR)
A report identifying work that fails to meet specifications.
Non-Destructive Testing (NDT)
Inspection methods, such as ultrasonic or infrared scanning, used to assess structural integrity without damaging materials.
Not-to-Exceed (NTE) Contract
A contract type that sets a maximum price limit, ensuring costs do not exceed a predefined threshold.
Notice of Award (NOA)
A formal notification issued to a contractor confirming their selection for a project before contract execution.
Notice to Proceed (NTP)
Formal authorization to begin work.
Nuclear Density Test
A method used to measure soil compaction levels using nuclear gauges, ensuring foundation stability and compliance with specifications.