Get a bag of pea shingle, some sand and some cement and
away you go. Sharp sand might be better.
Any decorative aggregate from an English Garden Centre might
by suitable, unless it is a critical application.
If what you are looking for is a premixed bag of aggregate (stone and sand)
round here referred to as ballast I would not bother as the mixes and aggr
egates are very variable as the Paving Expert says “the sweepings o
ff the yard floor”. Ballast is OK where finish and quality is unimp
ortant footings and post holes come to mind.
If this is for your path/drive then you want to be sure about the quality w
hich means buying the aggregates separately and mixing them accurately by v
olume. The best coarse aggregate for concrete is angular limestone chips @
20mm for general purpose concrete. If you require a finer mix go for 10mm o
f the same. Make sure the chippings are angular in other words not rounded
like pebbles the stones then tend to “lock” together for a
stronger result. For the fine aggregates use sharp sand not builders sand.
Go to the paving expert website for what proportions of coarse and fine agg
regates to use plus cement.
I find ordering "all in one ballast" usually does it. Locally that is a
mixture of sharp sand and stones of varying sizes from fine to small
pebble. Mix at about 5:1 by volume with cement for a general purpose
(although note the term ballast has regional variations - some seem to
only apply it to coarse stones on their own, like that used for railway
On Monday, 18 May 2020 14:23:50 UTC+1, Broadback wrote:
The size of aggregate requires depends on the thickness of the concrete. Thinner concrete = smaller aggregate.
10/1 is about right
ie 10mm aggregate for 100mm thick concrete.
You can buy it premixed, eg 10mm down to dust, only the cement needed to be added. In bags or loose if in large amounts.
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