Forum home Problem solving
This Forum will close on Wednesday 27 March, 2024. Please refer to the announcement on the Discussions page for further detail.

Tarmac Sharp Sand.

2»

Posts

  • Ferdinand2000Ferdinand2000 Posts: 537
    edited October 2021
    Is there a slight confusion over terminology here? My 10p on the categories.

    I have never heard of "Builders' Sharp Sand" as a category of sand.

    I know "Builders' Sand" (or Building Sand), which is the yellow or reddish-yellow stuff used to make mortar (eg bricklaying), or internal render. It clumps together, and feels soft.

    And "Sharp Stand", which is the stuff with sharper (!) grains in various colours used for laying paving on, or for making render / concrete for external use. It drains easily.

    I understand "Horticultural Sharp Sand" to be like Sharp Sand, but more washed and graded - perhaps with larger grains, which will help drainage more.

    So I think "Builders Sharp Sand" probably refers to Sharp Sand above, not 'Horticultural Sharp Sand". 

    Would I use normal "Sharp Sand" for gardening. I would try, but perhaps stick to the Horticultural version for important things such as mixing into a medium for seedlings.

    My local DIY stores seem to have plenty of sharrp sand in stock.

    if you need to check for saltiness, try some on your chips or your breakfast hegg :smile:
    “Rivers know this ... we will get there in the end.”
  • BobTheGardenerBobTheGardener Posts: 11,385
    edited October 2021
    Perki has hit the nail on the head.  It's the fine sand used for making mortar for bricklaying etc. which is the type to avoid.  Sharp sand as sold by Wickes etc., is fine for horticultural use and I always taste mine - never any salt.  It's just a general confusion with the naming of these materials - exactly like 'common' plant names, in fact. :)
    A trowel in the hand is worth a thousand lost under a bush.
  • JennyJJennyJ Posts: 10,576
    I usually buy both horticultural sand and horticultural grit from B&Q, usually when my Dad wants it, I don't have any use for the sand myself - the soil here's naturally full of it - and I only use a bit of grit for topdressing pots and seed trays. This year both are "Tarmac" branded https://www.diy.com/departments/tarmac-soil-conditioner-12l/5030349012124_BQ.prd , https://www.diy.com/departments/tarmac-soil-conditioner-horticultural-grit-12l/5030349012131_BQ.prd. The descriptions say they are washed. Whether in reality they're any different from the builders' versions (other than price) I don't know.

    Doncaster, South Yorkshire. Soil type: sandy, well-drained
  • WilderbeastWilderbeast Posts: 1,415
    @Palustris unless you buy washed rendering sand then it will contain salt, all sand does. Mind while it's an issue in building trades (the salt leaches out in render and damages it) I don't think it would contain enough salt do and real damage in a a garden. I'm not an expert on the garden bit but am a builder so definitely know about salt in sand 
  • BraidmanBraidman Posts: 274
    .
    I get washed river sand, doubt if it contains much salt, but every time i purchase it, it varies in coarseness.
  • Thanks to everyone, for your valued advise, a little confusing however, I believe both have & are being used. I’ll try both.
    Thanks again to you all.
    nick
Sign In or Register to comment.