ASTM C138-Unit weight of concrete and C231-Air content via pressure air meter
Matt OReilly
0:00 / 0:00
ASTM C138-Unit weight of concrete and C231-Air content via pressure air meter
54 275 просмотров · 10 лет назад
Matt OReilly
1,18 тыс. подписчиков
54 275 просмотров · 10 лет назад
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.
