SAPMT has reviewed the subject submittals dated August 19, 2014 & August 27, 2014 and has the following comments:
1.	The clause referred in TQ-008 sets a time limitation for ending curing only and not allowing for transportation. Provide references to clauses from Saudi Aramco standards or inspection checklists or other applicable standards (ACI or PCI) where transportation of precast panels is allowed after 7 days or after achieving certain strength.
2.	In case no such transportation limitations are mentioned in any standards, the IC proposal to move the panels from the yard at any time or at certain strength shall be supported by calculations, concurred by the designer and approved by SAPMT.
3.	Provide calculations to ensure that the applied load should never exceed the nominal rating load of the anchors while transporting for a given strength of concrete earlier than 28 days. Allowable lifting and handling stresses can be determined by the degree to which cracking can be tolerated. Lifting and handling concrete flexural stress calculations may assume an impact allowance of around 50% for transport and handling.
4.	IC may suggest a method to prove that 100% strength has been achieved at any time before 28 days and transport the panels.
5.	In all cases any cracking, chipping, spalling of concrete members due to mishandling and during transportation shall fall within the limitations set by the "repair works matrix for precast elements" dated 19 May 2014.
6.	Any damaged precast members outside the limitations set by the above said matrix shall be considered unusable.
7.	TQ-007 does not present anything different from what’s already mentioned in the "repair works matrix for precast elements" dated 19 May 2014. IC is urged to comply with the agreed matrix.
8.	If there is a contradiction between the agreed matrix and the approved method statement, the one approved later shall be enforced, ensuring that no standards are deviated from.
9.	Any proposal for deviation from standards shall be presented with complete justification for SAPMT review.
Should you have any questions, please contact Ahmed S. Khogeer, Sr. Project Engineer at (012) 422-4423.
