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| UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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sulphate and mortar
We are extending our house and having a retaining wall built of bricks and mortar to make room for it. The architect has specified 'sulphate-free hardcore' to backfill. I suppose this is because of possible sulfate attack on the mortar. Our builder is going to use rubble from the demolition of a 70s concrete block utility room as the fill. This doesn't contain any plasterboard but the walls were plastered. Should I be concerned? Leo |
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#2
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sulphate and mortar
wrote:
We are extending our house and having a retaining wall built of bricks and mortar to make room for it. The architect has specified 'sulphate-free hardcore' to backfill. I suppose this is because of possible sulfate attack on the mortar. Our builder is going to use rubble from the demolition of a 70s concrete block utility room as the fill. This doesn't contain any plasterboard but the walls were plastered. Should I be concerned? Leo Normally such walls are specced to be built with SRPC NT |
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#3
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sulphate and mortar
On 23 Apr, 11:39, wrote:
wrote: We are extending our house and having a retaining wall built of bricks and mortar to make room for it. *The architect has specified 'sulphate-free hardcore' to backfill. I suppose this is because of possible sulfate attack on the mortar. Normally such walls are specced to be built with SRPC Isn't that the case if the wall is to be cast concrete (and SRPC), rather than (as in this case) brickwork. Is there an SRPC equivalent for brickie's mortar? |
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#4
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sulphate and mortar
On 23 Apr, 12:41, Andy Dingley wrote:
On 23 Apr, 11:39, wrote: wrote: We are extending our house and having a retaining wall built of bricks and mortar to make room for it. *The architect has specified 'sulphate-free hardcore' to backfill. I suppose this is because of possible sulfate attack on the mortar. Normally such walls are specced to be built with SRPC Isn't that the case if the wall is to be cast concrete (and SRPC), rather than (as in this case) brickwork. Is there an SRPC equivalent for brickie's mortar? What is SRPC - I'm trying Steel Reinforced P?? Concrete ? Rob |
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#5
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sulphate and mortar
On 23 Apr, 13:32, Rob G wrote:
On 23 Apr, 12:41, Andy Dingley wrote: On 23 Apr, 11:39, wrote: wrote: We are extending our house and having a retaining wall built of bricks and mortar to make room for it. The architect has specified 'sulphate-free hardcore' to backfill. I suppose this is because of possible sulfate attack on the mortar. Normally such walls are specced to be built with SRPC Isn't that the case if the wall is to be cast concrete (and SRPC), rather than (as in this case) brickwork. Is there an SRPC equivalent for brickie's mortar? What is SRPC - I'm trying Steel Reinforced P?? Concrete ? Rob (sulphate resistant portland cement) jim |
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