Air content of concrete using the pressure air meter (ASTM C231) and unit weight of concrete (ASTM C138). Two tests required as part of the ACI Concrete Field Testing Technician-Grade I exam.
- Күн бұрын
ASTM C138-Unit weight of concrete and C231-Air content via pressure air meter
- Рет қаралды 46,816
Пікірлер: 38