Sandstone slabs - Should they move?

[paulm4997]

Hi Can you please assist

I had my garden landscaped about 2 months ago. I have Sandstone Slabs and i belive a geo-fix between the joints. Before my contractor left there was 1 slab that was not loose but rocked slightly. They said that with that type of slab and because it it rough on both sides this could occur. I accepted as this was minimal. Two months on and the geo-fix is cracking and coming out of the joints and several of the slabs are what i would call "loose" or rocking.The contractor is on his way to see me shortly. Should they rock and should teh geo-fix crack! Can you please advise

Thanks

[ilovesettsonmondays]

hi , im afraid you wont find many fans of geofix on this site. the slabs that are rocking need to be taken up . the original bed taken out and relaid . instead of geo sh1te , use romex or aspects easijoint or easipoint gun injected mortar

[paulm4997]

Thanks for the reply. Should the sandstone be "set on concrete base".

[ilovesettsonmondays]

sand and cement put through a mixer with a touch of water . 5/1 or 4/1 will do the job.

[ilovesettsonmondays]

as long as a hardcore base was laid underneath

[lutonlagerlout]

short answer is NO
LLL