LTTien
Civil/Environmental
- Jan 31, 2018
- 6
Hi all,
I have a high service temperature tank foundation design job.
Tank diameter is 42m.
The temperature will reach 415°F(212°C) considering long term thermal conductivity even if we are using foam glass as thermal insulation.
I'd like to know:
1. Client indicates that HDPE should be used as leak protection.
But since the service temperature of HDPE is only 212°F(100°C).
Is there any other plastic liner or other material suitable for leak protection?
PIP suggests that teflon and double layer can be used but I don't think the cost is going to be acceptable.
2. If we adopt RC foundation, reduction factor of concrete and steel strength should be used.
Is there any suggestion for concrete mix other than PIP? ( PIP suggest that water-cement ratio = 0.4)
How do we consider thermal force when performing foundation RC design?
I have a high service temperature tank foundation design job.
Tank diameter is 42m.
The temperature will reach 415°F(212°C) considering long term thermal conductivity even if we are using foam glass as thermal insulation.
I'd like to know:
1. Client indicates that HDPE should be used as leak protection.
But since the service temperature of HDPE is only 212°F(100°C).
Is there any other plastic liner or other material suitable for leak protection?
PIP suggests that teflon and double layer can be used but I don't think the cost is going to be acceptable.
2. If we adopt RC foundation, reduction factor of concrete and steel strength should be used.
Is there any suggestion for concrete mix other than PIP? ( PIP suggest that water-cement ratio = 0.4)
How do we consider thermal force when performing foundation RC design?
