Concrete back yard

necstandards

Hi - am going to put a concrete slab at the back of the house, approx 7.3 x 15.5m. Some questions if i may;
1. What thickness slab should i be going with? As its at the back, i don't foresee heavy traffic - we will be driving our cars onto it. Currently i have sraped off the existing loose pebbles, leaving about 75mm to the top of the foot path. As its already well compacted, would that influence the concrete thickness?
2. How many expansion joints should i go with? Should i just break the 15.5m into three with joints?
3. Should i fit the plastic expansion joint type or cut the joint in afterwards?
4. Planning on installing drain channel at the perimeter - an recommendations/guidelines on how to fit this?
Cheers

Calahonda52

what % of grass for drainage is left?
where will the water from slab drain to?

necstandards

Calahonda52 wrote: »

what % of grass for drainage is left?
where will the water from slab drain to?

Lucky that i have a drain that i can tap into, so am not worried about drainage.

Calahonda52

necstandards wrote: »

Lucky that i have a drain that i can tap into, so am not worried about drainage.

what sort of drain, surface water or foul?

necstandards

Calahonda52 wrote: »

what sort of drain, surface water or foul?

Surface

Calahonda52

necstandards wrote: »

Hi - am going to put a concrete slab at the back of the house, approx 7.3 x 15.5m. Some questions if i may;
1. What thickness slab should i be going with? As its at the back, i don't foresee heavy traffic - we will be driving our cars onto it. Currently i have sraped off the existing loose pebbles, leaving about 75mm to the top of the foot path. As its already well compacted, would that influence the concrete thickness?
2. How many expansion joints should i go with? Should i just break the 15.5m into three with joints?
3. Should i fit the plastic expansion joint type or cut the joint in afterwards?
4. Planning on installing drain channel at the perimeter - an recommendations/guidelines on how to fit this?
Cheers

Is that a typo


If not then you will need a decent slab, minimum 100 mm on say 150 crushed stone.
When you say well compacted what is compacted?

necstandards

Calahonda52 wrote: »

Is that a typo


If not then you will need a decent slab, minimum 100 mm on say 150 crushed stone.
When you say well compacted what is compacted?

Yeah, id want to be able to drive our cars over it. Currently there is compacted gravel there - see pic. Having issue with existing drain, so putting in new drainage.
Plan is to have eco drain at the lawn side, slab sloping out to it.

Calahonda52

Nice dumper truck!
gravel looks very dirty
Rather than concrete what about using the honey comb mesh with gravel on it
like this
https://www.geo-coastal.ie/products-services/miscellaneous/gravel-paving/?gclid=Cj0KCQjwhb36BRCfARIsAKcXh6FRIvyl8WGZldST4zwd2ApeVsfZ8at93R2n8gDpBucCa1XGzoXBiDIaAiOlEALw_wcB
It might be a bit pricey but a lot less work and heartache.

necstandards

Calahonda52 wrote: »

Nice dumper truck!
gravel looks very dirty
Rather than concrete what about using the honey comb mesh with gravel on it
like this
https://www.geo-coastal.ie/products-services/miscellaneous/gravel-paving/?gclid=Cj0KCQjwhb36BRCfARIsAKcXh6FRIvyl8WGZldST4zwd2ApeVsfZ8at93R2n8gDpBucCa1XGzoXBiDIaAiOlEALw_wcB
It might be a bit pricey but a lot less work and heartache.

Ha - serious gear here!
No, needs to be concrete - thanks for your feebback