Made reinforced lintels for internal walls from aerated concrete blocks. The technical solution was spied on by the pros

In preparation for the construction of a house from aerated concrete, which I build with my own hands, I studied various technical solutions and the experience of many builders. Of course, first of all, I took into account the albums of technical solutions from the autoclaved aerated concrete manufacturers. I have shown many tricks in my articles.

The turn came to show how I made lintels over doorways in not load-bearing walls of the second floor. On the first floor, I have load-bearing walls and monolithic lintels.

Jumpers are required for wall openings with a width of 150 mm and 200 mm. Such a wall width of 200 mm is due to a ventilation duct with a diameter of 100 mm embedded in it. There will be a separate article about this. And in my understanding, the thickness of the partition walls should not be less than 150 mm. Problems with sound insulation begin.

Blocks glued with polyurethane foam adhesive for aerated concrete masonry. This should be done on a level surface. In my case, a pallet from under the blocks. The length of the jumpers will be

1250 mm. With the width of the openings - 900 mm, reliance on 175 mm on the walls is sufficient.

After the glue-foam sets, you need to make grooves for the reinforcement. Because there was no desire to carry the milling cutter, with which I chased the walls when reinforcing them, then I pierced two strips with a regular drill and a drill and broke the jumper between them. Groove width 4-5 cm. Less is possible. But I had scraps of thick reinforcement with a diameter of 14 mm. There are enough fittings and 10 mm.

I made holes for the bends of the reinforcement. Then I dedusted the strobe with an ordinary household hairdryer, which I used to dust the strobes in the masonry of the walls last season. No brushes will remove dust like this. And if it is not removed, then the solution will have poor adhesion to the base of the groove. I bent the ends of the reinforcement to make the shape of a bracket.

But for a lintel with a width of 200 mm, the length of the reinforcement was not enough. I made a bend only at one end. Because the reinforced part of the lintel will rest on the walls, then the length of the reinforced part cannot be shortened. Bends made one on each side of the lintel.

Filled with glue for laying aerated concrete. Ideally, you need sand concrete. But since aerated concrete strongly draws moisture from concrete, it is better to do this with glue. But it takes a long time to gain strength. First you need to pour a layer of glue, then place the reinforcement in the strobe and fill the reinforcement completely.

The jumpers are ready. An hour later I had to add more glue, because aerated concrete pulled moisture out of it and the pouring shrank. After three days, the lintels can be installed on the wall.

Lintels on the walls. One 200 mm wide lintel turned out to be very heavy - about 50 kg. Alone at the height 2.5 m it was difficult to lay it, but I did it. I mounted them on glue-foam, tk. this allows you to move the jumpers a little longer during installation.

The process of making jumpers can be seen in the video:

I also want to give a video of the author, where I spied on this method of installing jumpers for partition walls: https://youtu.be/wyPHara-84I

Who decided to build from aerated concrete, I recommend watching most of the videos on this channel.

I also post a link to a video about this technical solution from the guru of autoclaved aerated concrete - Gleb Gninfeld: https://youtu.be/OTl7BFzKxj8

Why did I choose this method of making lintels in partition walls? After all, most make it easier - they put metal corners on one or both sides of the wall. Firstly, the plaster does not adhere to the corner. Secondly, the corners need to be purchased, but I had the cuttings of the reinforcement. And thirdly, it is so beautiful with the same reliability, nothing sticks out of the plane of the wall.

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