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3 replies
Some questions about milling in Leca
I understand that the "right" way to groove slots for VP pipes in Leca is to rent a cutter with a vacuum, so that's probably what I'll do.
My question is:
What should I fill in with after placing the pipes? I will plaster the surface with cement-based mortar afterwards. Is Casco Husfix suitable?
Tips for a suitable hole cutter/hole saw to install the boxes would also be nice.
My question is:
What should I fill in with after placing the pipes? I will plaster the surface with cement-based mortar afterwards. Is Casco Husfix suitable?
Tips for a suitable hole cutter/hole saw to install the boxes would also be nice.
Last edited:
Well, I don't know, but feel free to correct me.
I would assess that Leca is roughly equivalent to lightweight concrete.
In lightweight concrete, I have "routed" grooves with the jigsaw. I then shortened the jigsaw blade using an angle grinder to the right length, to get the proper depth on the groove.
To make it straight, you can screw up a piece of batten to guide the saw against. Sufficiently large screws require no plug.
Around the sockets, I would equip the jigsaw with a longer blade. Remember that the sockets have pipe fittings which a hole saw cannot handle.
I have no good experiences with Casco's husfix; it's expensive and hard to sand. Whether to use it, I leave that unsaid.
I would consider using gypsum filler; it can be layered up to 100mm at a time. But I know too little about that material, so you'll have to form your own opinion of what is best.
What are the Leca blocks mortared together with? That should be the most straightforward option.
A tip is to fill the electrical boxes with newspaper before you start filling around them.
I would assess that Leca is roughly equivalent to lightweight concrete.
In lightweight concrete, I have "routed" grooves with the jigsaw. I then shortened the jigsaw blade using an angle grinder to the right length, to get the proper depth on the groove.
To make it straight, you can screw up a piece of batten to guide the saw against. Sufficiently large screws require no plug.
Around the sockets, I would equip the jigsaw with a longer blade. Remember that the sockets have pipe fittings which a hole saw cannot handle.
I have no good experiences with Casco's husfix; it's expensive and hard to sand. Whether to use it, I leave that unsaid.
I would consider using gypsum filler; it can be layered up to 100mm at a time. But I know too little about that material, so you'll have to form your own opinion of what is best.
What are the Leca blocks mortared together with? That should be the most straightforward option.
A tip is to fill the electrical boxes with newspaper before you start filling around them.
Polish the pipes with the mortar you will use later.
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