Is ready mix concrete too expensive??

som farmer

Member
Livestock Farmer
Location
somerset
we very often pick up 1 or 2m drymix, plant 4 miles away. Handy for small odd jobs.
other job that saves concrete, use a whacker plate pre concreting, saves a lot of concrete !
 

som farmer

Member
Livestock Farmer
Location
somerset
we still have concrete, laid in the 50's, about 3ins thick, silage trailers, lorries drive over it, some has cracked, and been replaced, with 6ins, but a lot still fine !
Read an article on Roman concrete, they couldn't understand why it was so 'strong' and still fine, the simple addition of volcanic lava !
 

Exfarmer

Member
Location
Bury St Edmunds
we still have concrete, laid in the 50's, about 3ins thick, silage trailers, lorries drive over it, some has cracked, and been replaced, with 6ins, but a lot still fine !
Read an article on Roman concrete, they couldn't understand why it was so 'strong' and still fine, the simple addition of volcanic lava !
In Rome their is a structure called the pantheon it has been a Christian church for 1600 years and was built between 4-600 years earlier . so todays structure is just 2,100 years old
It has a central unsupported dome 142 feet, 43m across with a central oculus ( opening ) 27 feet, 8m wide
All made from unreinforced concrete
and our motorway bridges struggle to survive 50 years:cautious:
 

aleary5a

Member
Material is more consistent from a ready-mix truck. And should be guaranteed the right strength. Additives are used for frost protection and to improve workability etc. If hand batched consistent batches will be a problem. Time may also be an issue. Takes longer to batch onsite are you paying someone to do this? If doing a floor slab may have patches with not enough cement. But if materials can be bought cheap and you have time then probably better batching on site
 

som farmer

Member
Livestock Farmer
Location
somerset
In Rome their is a structure called the pantheon it has been a Christian church for 1600 years and was built between 4-600 years earlier . so todays structure is just 2,100 years old
It has a central unsupported dome 142 feet, 43m across with a central oculus ( opening ) 27 feet, 8m wide
All made from unreinforced concrete
and our motorway bridges struggle to survive 50 years:cautious:
motorway bridges, classic example, the first bridge over the severn, is coming to the end of its life, the stainless steel wires, holding the 'suspension' are weakening, and there for will reduce the life span, rapidly.
The Clifton suspension bridge, has cast iron wires, and they are as good today, as they were when built. One would have thought modern architects would have known better.
We went around York cathedral, on a tour, they were replacing some old oak timbers, a chap asked, why they were not replacing with steel girders. Never forget the reply

'' Sir, we know the oak timbers, will last a minimum of 700 years, we have no idea how long a steel girder will last''.

Rather think one hell of a lot of knowledge has been lost, to time, the pyramids are a classic example.
 
motorway bridges, classic example, the first bridge over the severn, is coming to the end of its life, the stainless steel wires, holding the 'suspension' are weakening, and there for will reduce the life span, rapidly.
The Clifton suspension bridge, has cast iron wires, and they are as good today, as they were when built. One would have thought modern architects would have known better.
We went around York cathedral, on a tour, they were replacing some old oak timbers, a chap asked, why they were not replacing with steel girders. Never forget the reply

'' Sir, we know the oak timbers, will last a minimum of 700 years, we have no idea how long a steel girder will last''.

Rather think one hell of a lot of knowledge has been lost, to time, the pyramids are a classic example.

Pet peeve is architects / designers that only focus on making it look pretty on the grand opening day, not how it will look in 5,10,25 yrs etc. And how easy it is to maintain.

So many New houses suffer from this and it’s not always budget constraints related. Drive me up the wall, these folk have no practical experience.
 

som farmer

Member
Livestock Farmer
Location
somerset
Pet peeve is architects / designers that only focus on making it look pretty on the grand opening day, not how it will look in 5,10,25 yrs etc. And how easy it is to maintain.

So many New houses suffer from this and it’s not always budget constraints related. Drive me up the wall, these folk have no practical experience.
had a friend that was in the removal business, moving someone into a new flat, slipped while carrying a sofa, went straight through to next door flat, 3x2 timber, plasterboard, no insulation, or x pieces of timber, and we saw the photo's.
Most modern building is on a controlled budget, meaning some things are 'overlooked', all short term, you only need to look at 'old' houses, to realise the difference between long term and short term.
 
had a friend that was in the removal business, moving someone into a new flat, slipped while carrying a sofa, went straight through to next door flat, 3x2 timber, plasterboard, no insulation, or x pieces of timber, and we saw the photo's.
Most modern building is on a controlled budget, meaning some things are 'overlooked', all short term, you only need to look at 'old' houses, to realise the difference between long term and short term.

Agreed but tbf modern materials are equally pants.

Some of the old timbers holding up my farm house roof wouldn’t be up to the job of propping open the site porta loo door if new like for like
 
Small loads of concrete are often delivered in skips round here and naturally it has to be a stiff mix to stay in the skip while being transported. What the OP probably saw was the mix being "knocked up" having had water added after arrival on site to make laying easier.
 
C35 @ £106 a cube, cement powder going up 16% again in April, coupled with white diesel expect it to be around £120 a cube thereafter.
North East Scotland and within 5 miles of batching plant.
 

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