| Abbreviation | Definition |
|---|---|
| ACI | Allied Construction Industries |
| ACI | American Concrete Institute |
| ACIF | Australian Construction Industry Forum |
| ACLN | Australian Construction Law Newsletter |
| ACM | American Construction Metals |
| ACME | Architecture Construction Manufacturing Engineering |
| ACPG | Activar Construction Products Group |
| ACR | Aggregate – Cement Ratio |
| ACRY | Association de la construction Richelieu Yamaska |
| ACS | Airfield Construction Squadron |
| ACSA | Alberta Construction Safety Association |
| ACSMAC | Aluminized (Type 2) Corrugated Steel - Metal Arch Culvert |
| ACSP | Aluminized (Type 2) Round Corrugated Steel Pipe |
| ACT | Acoustic Ceiling Tile |
| AD | Access Door |
| AD | Armored Door |
| ADA | Airtight Drywall Approach |
| ADACT | Associate Degree in Architecture Construction Technology |
| ADACT | Associate Degree in Artchitecture Construction Technology |
| ADCC | Abu Dhabi Construction Company |