Qualified Products List (QPL)

A pre-approved list of construction materials, equipment, or components that meet project specifications and regulatory requirements.

Quality Assurance Plan (QAP)

A formal document outlining the procedures and standards for ensuring quality throughout the construction process.

Quantity Surveying

The process of estimating and managing construction costs, including material quantities, labor, and overhead expenses.

Quarry Dust

A fine byproduct of stone crushing, sometimes used as a substitute for sand in concrete production or road construction.

Quay Wall

A vertical or sloped structure built along a waterfront to support docking, loading, and unloading of ships in port facilities.

Quicklime Stabilization

A soil treatment method that uses calcium oxide (quicklime) to improve soil strength, reduce moisture content, and enhance construction suitability.