Hi guys. I've lifted a patio slab that was rocking when stepped on and also had some broken pointing.
There's loose sand underneath which I've piled to one side and it was covering a bit of a cavity or dip in the area under the slab. I'm wondering whether to pat the sand back down and just put some large blobs of sand and cement mix in each corner?
Do I need sharp sand or building sand or it doesn't matter, and would you recommend mixing 4 parts sand to 1 part cement? That's what I've been seeing on YouTube videos. And 3 to 1 for mortar joints? And a gauging trowel? I also want to fill a small 3 inch by 1 inch hole in my front wall.next to the window frame.
How much sand and cement do you think I should buy? Will I need more than a 20kg bag of sand and a 25kg bag of cement?
Do I need a tuck pointer for the mortar joints around the slab and a piece of old hose to finish the mortar joints?
There's loose sand underneath which I've piled to one side and it was covering a bit of a cavity or dip in the area under the slab. I'm wondering whether to pat the sand back down and just put some large blobs of sand and cement mix in each corner?
Do I need sharp sand or building sand or it doesn't matter, and would you recommend mixing 4 parts sand to 1 part cement? That's what I've been seeing on YouTube videos. And 3 to 1 for mortar joints? And a gauging trowel? I also want to fill a small 3 inch by 1 inch hole in my front wall.next to the window frame.
How much sand and cement do you think I should buy? Will I need more than a 20kg bag of sand and a 25kg bag of cement?
Do I need a tuck pointer for the mortar joints around the slab and a piece of old hose to finish the mortar joints?