Hello everyone,
After moving in last October, I now want to start working on the outdoor area this spring.
The surface to be paved has already been fully prepared by our groundworker, who spread and compacted the crushed stone base.
We have also already chosen the suitable paving stones and edging stones.
The first step will be to install about 100 linear meters (330 linear feet) of edging stones as a border.
These will be set in a roughly 30 cm (12 inch) wide bed made of about 10 cm (4 inch) lean concrete plus a back support (about 10 cm (4 inch) at a 45° angle).
I have now calculated the materials needed for this:
Required concrete: 100 m (330 ft) * 0.3 m (12 in) * 0.15 m (6 in) [length x width x height (simplified calculation including back support)] = 4.5 m³ (160 cubic feet) of concrete.
To mix this, I would need about 9 tons of gravel (0/16) and 1.5 tons of cement (60 x 25 kg (55 lb) bags).
Does this seem correct, or have I made a mistake somewhere?
Thanks in advance!
After moving in last October, I now want to start working on the outdoor area this spring.
The surface to be paved has already been fully prepared by our groundworker, who spread and compacted the crushed stone base.
We have also already chosen the suitable paving stones and edging stones.
The first step will be to install about 100 linear meters (330 linear feet) of edging stones as a border.
These will be set in a roughly 30 cm (12 inch) wide bed made of about 10 cm (4 inch) lean concrete plus a back support (about 10 cm (4 inch) at a 45° angle).
I have now calculated the materials needed for this:
Required concrete: 100 m (330 ft) * 0.3 m (12 in) * 0.15 m (6 in) [length x width x height (simplified calculation including back support)] = 4.5 m³ (160 cubic feet) of concrete.
To mix this, I would need about 9 tons of gravel (0/16) and 1.5 tons of cement (60 x 25 kg (55 lb) bags).
Does this seem correct, or have I made a mistake somewhere?
Thanks in advance!
I guess this should be about right. The volume seems correct at first glance, and concrete has a high density, so the weights also add up. It’s easy to make mistakes with the weights when dealing with concrete; for a few pad footings on a climbing tower, I quickly ended up with 1.5 tons.
Hello,
just a quick feedback in case someone else has the same question:
We have now installed about 110 linear meters (360 feet) of curb stones and 3 block steps, each consisting of two elements measuring 100x35x15cm (39x14x6 inches).
It would have been better to have around 10 tons (11 tons) of gravel (0/16) and 50 bags of 25kg (55 lbs) cement.
Unfortunately, I had to buy some extra gravel, but the cement will be stored for the next project.
just a quick feedback in case someone else has the same question:
We have now installed about 110 linear meters (360 feet) of curb stones and 3 block steps, each consisting of two elements measuring 100x35x15cm (39x14x6 inches).
It would have been better to have around 10 tons (11 tons) of gravel (0/16) and 50 bags of 25kg (55 lbs) cement.
Unfortunately, I had to buy some extra gravel, but the cement will be stored for the next project.
Similar topics