Posted: Thu Dec 06, 2007 7:02 pm
Hi all, would love some direction on the following.
I am block paving a 6 x 4.5 metre section of my drive to stand cars on with 60mm blocks. I have put kerbs in and the base of MOT type 1 with a TDP geo-textile membrane over a sub grade of light clay soil. I will be doing the screed and laying of the blocks this coming weekend (weather permitting). I have put up a cover to keep the wet out, so can do some work if raining.
· As the weather conditions are generally wet and sand deliveries are quite wet, could you advise when pre compacting what affect the damper sand could have. I am using a medium wacker plate i.e. 84 kilo 16.5 kn with a plate size of 600 x 400 mm. Would I pre compact with just 1 pass, 2 passes, or even more.
My drive slope at 330 mm over 4 metres then 90 mm fall over last 2 metres to dished gully all with a fall of 75mm to the right and the drain. 50 x 150mm kerbs to the 3 sides and gully forming 4th kerb at boundary wall of house a d door entrance, On the 3 kerbed sides it does not matter if the finished level is high or low, but at the gully end level or high is OK but not low. So I don’t mind pre-compacting slightly more the laying bed.
· Jointing, in the site you mention that if it is damp or wet when the jointing is done, that there is a method of wet jointing. Could you explain this, as I have not found it on the site?
· Setting out a 45-degree herringbone. In the site you give a measurement of 215mm from the side base line to start the first course. Is there a set measurement from the bottom base line kerb to start from?
· My sub base has been down now for just over a week, and the weather as been wet over the last week. The other day I topped up the Type 1 to the correct level and run the wacker plate over the whole area again today, this produced a few wet patches form through the vibration of the plate bring water / fat (as in concrete) to the top. Should I let the base dry out fully (as the type 1 moves on the top a little within these wet patches) before I screed and lay the blocks
???
I am block paving a 6 x 4.5 metre section of my drive to stand cars on with 60mm blocks. I have put kerbs in and the base of MOT type 1 with a TDP geo-textile membrane over a sub grade of light clay soil. I will be doing the screed and laying of the blocks this coming weekend (weather permitting). I have put up a cover to keep the wet out, so can do some work if raining.
· As the weather conditions are generally wet and sand deliveries are quite wet, could you advise when pre compacting what affect the damper sand could have. I am using a medium wacker plate i.e. 84 kilo 16.5 kn with a plate size of 600 x 400 mm. Would I pre compact with just 1 pass, 2 passes, or even more.
My drive slope at 330 mm over 4 metres then 90 mm fall over last 2 metres to dished gully all with a fall of 75mm to the right and the drain. 50 x 150mm kerbs to the 3 sides and gully forming 4th kerb at boundary wall of house a d door entrance, On the 3 kerbed sides it does not matter if the finished level is high or low, but at the gully end level or high is OK but not low. So I don’t mind pre-compacting slightly more the laying bed.
· Jointing, in the site you mention that if it is damp or wet when the jointing is done, that there is a method of wet jointing. Could you explain this, as I have not found it on the site?
· Setting out a 45-degree herringbone. In the site you give a measurement of 215mm from the side base line to start the first course. Is there a set measurement from the bottom base line kerb to start from?
· My sub base has been down now for just over a week, and the weather as been wet over the last week. The other day I topped up the Type 1 to the correct level and run the wacker plate over the whole area again today, this produced a few wet patches form through the vibration of the plate bring water / fat (as in concrete) to the top. Should I let the base dry out fully (as the type 1 moves on the top a little within these wet patches) before I screed and lay the blocks
???