SAPMT has reviewed the subject letter dated February 19, 2014 and has no objection with the following comments:
1.	In absence of related SA standards and IFC, and according to the CBR values declared by IC, it is mandatory that IC meets or exceeds the manufacturers recommendations as follows;
a.	A minimum Overlap of 300mm shall be maintained for geo textile between adjacent sheets or rolls.
b.	A minimum overlap of 300mm shall be maintained for geo grid between adjacent sheets or rolls.
2.	Geo-textile and Geo-grid shall not be subjected to vehicular traffic at speeds more than 10kmph.
3.	Only rubber tired vehicles are allowed to move directly on top of Geo-grid and Geo-textile. Any abrupt starts and stops or turning on top of the grid or textile shall be avoided.
4.	Tracked vehicles or compaction equipment can only be used after a lift thickness of 300mm has been achieved on top of the Geo-grid or Geo-textile.
5.	Any waving occurring in the textile or the grid shall be removed before or during backfill.
Should you have any questions, please contact Fahad A. Al-Balawi, Sr. Project Engineer on Tel.  No. +966 12 422 4393.
