grout resistance not met in ground anchors
grout resistance not met in ground anchors
(OP)
hello I would like to have a feedback regarding the below
I have a diaphragm wall which I am stabilizing using ground anchors. the grout specified must have 27 Mpa at 7 days before tensioning the cables.
The contractor is getting 18 Mpa at 10 days so he is not meeting the designer requirements.
I would like to know how much is critical the fact that the grout capacity is not being met ?
A ground anchor test will be done. If the results are OK, should I still be worried regarding the above ?
Thanks in advance
I have a diaphragm wall which I am stabilizing using ground anchors. the grout specified must have 27 Mpa at 7 days before tensioning the cables.
The contractor is getting 18 Mpa at 10 days so he is not meeting the designer requirements.
I would like to know how much is critical the fact that the grout capacity is not being met ?
A ground anchor test will be done. If the results are OK, should I still be worried regarding the above ?
Thanks in advance





RE: grout resistance not met in ground anchors
RE: grout resistance not met in ground anchors
RE: grout resistance not met in ground anchors
RE: grout resistance not met in ground anchors
RE: grout resistance not met in ground anchors
That would be, in my opinion, the decision of the designer of the anchor. for ground anchor, it could be acceptable since the ''ground-to-grout'' friction could still be smaller than the ''grout-to-steel''.
And let's say that the test gives you good results, I would ask for testing on all anchor (no need to be a long test for all anchor, lets say reaching 1.5 times the design load in 5 steps, wait 30 minutes to check for creep, and unload in couple of steps, or to lock off load). the grout-water ration or the storing of the grout must be the reason for the low resistance.
Hope I could be of some helps, and do not hesitate to ask if you have questions, I design lots of anchor with a contractor.
Jonathan
RE: grout resistance not met in ground anchors
RE: grout resistance not met in ground anchors
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RE: grout resistance not met in ground anchors
RE: grout resistance not met in ground anchors