I've had a builder to lay 30 600x600 paving slabs.
after he layed them they started moving, I dug out 100mm, and he said it was too much.
he put m.o.t underneath, not much and said he'd build the rest up with cement...they started moving after a while, he said he used to much cement, but the cement was more like sand then cement, the mix had way to much sand.
he lifted the slabs that were moving up and put some adhesive glue on the slabs which has stuck them down.
when he done the pointing i'm pretty sure he's used the wrong sand as the joints stay real dark for days after it's been raining, as my old slabs dry out within a couple hours, does this look like the wrong sand thats been used?
after he layed them they started moving, I dug out 100mm, and he said it was too much.
he put m.o.t underneath, not much and said he'd build the rest up with cement...they started moving after a while, he said he used to much cement, but the cement was more like sand then cement, the mix had way to much sand.
he lifted the slabs that were moving up and put some adhesive glue on the slabs which has stuck them down.
when he done the pointing i'm pretty sure he's used the wrong sand as the joints stay real dark for days after it's been raining, as my old slabs dry out within a couple hours, does this look like the wrong sand thats been used?
