Summary of "14 правил кладки перегородок. Тест турником. Звукоизоляция и стоимость. Газоблок или каркас?"
Short summary
The video presents 14 practical rules for building internal partitions from aerated concrete (gas block). It emphasizes sound insulation, attachment details, quality-control checks, reinforcement, and compares cost/performance versus metal-frame (soundproof) partitions. On-site tests (vertical bar load test), examples of correct/incorrect details, and recommendations for selective soundproofing are included.
Key construction rules, techniques and steps
Connections to existing structures
- Use flexible ties (metal suspensions) with vibration-compensating dampers so structural movement doesn’t transfer to the partition.
- Attachments to walls:
- Install damper tape on the wall.
- Fill the joint with fire‑resistant sound‑insulating foam.
- Fix metal suspension via special anchors and vibration washers.
- Attachments to interfloor slab:
- Leave a 2–3 mm seam.
- Fill with fire‑resistant soundproofing foam and press against damper tape to decouple the plaster from the slab.
Floor / leveling rules
- If the floor slab difference is greater than 5 mm, make a leveling screed from M300 concrete.
- Do NOT use masonry adhesive as a leveling screed (it will deform).
Joints and adhesive
- Fill vertical and horizontal joints completely with thin-bed adhesive; no voids allowed.
- Joint thickness: ≤ 3 mm.
- Horizontal joint deviation tolerance: ≤ 5 mm.
- Vertical seam tolerance: ideally ±1 mm.
Reinforcement
- Reinforce every second row with basalt mesh; ensure proper overlap of the mesh.
- Alternative: make grooves and place rebar if the client requests reinforcement instead of mesh.
- Reinforce openings using factory-made aerated concrete lintels (avoid makeshift reinforcement corners).
Block-laying and layout
- Avoid “block dressing” (ending blocks without a proper tie) at corners or where partitions meet; partitions must be properly tied to each other.
- Lay partitions from the project axis (columns), not from arbitrary external walls.
- After completing the first row, invite the designer/customer to verify critical dimensions (kitchen size, built-in furniture, corridor widths).
Fastening frequency and details
- Fasten hangers every second row.
- Use coin/vibration-acoustic dampers at the base/foundation to reduce structural noise transfer and to accommodate floor subsidence.
Quality-control checks
- Use a 3-meter straightedge (not 2 m) to check verticality and the plane of partitions.
- Check openings and diagonals for flatness and evenness.
Sound insulation and design strategy
- Typical measured/quoted sound insulation:
- Aerated concrete block (gas block) + plaster both sides, structure ~130 mm: ~45–46 dB.
- Frame soundproof partition (75 mm profile, total 135 mm): ~60 dB (ideal lab/box numbers).
- Aerated concrete block + ZPS soundproof panel + plaster both sides, thickness ~165 mm: ~59–60 dB — comparable to a 135 mm frame partition.
- Practical approach:
- Use targeted soundproofing (ZPS panels) only at critical walls (e.g., TV wall, bedroom separations) rather than soundproofing less critical walls/corridors.
- This yields near-frame-level performance at lower cost and keeps overall wall thickness reasonable.
Note: Lab box test numbers are optimistic; real apartment elements (doors, windows, ceilings) reduce real-world results.
Cost comparison (example project, figures in rubles)
-
Aerated concrete partitions (D500, 10 cm) — masonry:
- Work: 350,000
- Rough materials: 320,000
- Masonry total: 670,000
-
- Plastering both sides: +450,000
-
- ZPS soundproof panel (where used): +300,000
- Total (gas block with selective soundproofing): ~1,420,000
-
Frame soundproof partitions (75 profile, 135 mm), including additional engineering, reinforced profiles for wet zones, LVL timber, added precision and sealing/painting:
- Total: ~2,720,000
-
Cost difference:
- Frame solution is about 1,320,000 rubles more for this project (roughly double the basic gas-block technology cost).
Load test and anchors
- Practical load test: a horizontal pull-up bar fixed to a 10 cm aerated concrete wall using two main anchors supported three adults (~270 kg) without failure.
- For permanent heavy loads (kitchens, cabinets), use proper anchors — chemical anchors are recommended for maximum reliability.
When to choose frame partitions
- Choose framed partitions if:
- You need many sliding/pocket (pencil) doors.
- You have critical dimensional limits where the thinner frame option matters by several centimeters.
- Otherwise, well-executed aerated concrete partitions with selective ZPS soundproofing deliver near-equivalent sound insulation, sufficient load capacity, and a better price–quality ratio.
Practical takeaways / recommendations
- Soundproof selectively: add ZPS panels only at walls that require high isolation (TV/bedroom separations); do not soundproof corridors unnecessarily.
- Ensure correct decoupling (damper tape + foam + vibration washers) when attaching partitions to existing structures to prevent cracks and structural noise transmission.
- Insist on fully filled thin-bed joints, basalt mesh reinforcement every second row, and strict tolerances for joint thickness and alignment to avoid future cracks and poor acoustic performance.
- Involve the designer/customer after laying the first row to confirm final spatial decisions.
Notable locations, products and on-camera roles
- Example complex mentioned: Sky House residential complex.
- Materials/products referenced:
- Aerated concrete block D500 (10 cm)
- MFUA damper tape
- Fire‑resistant sound‑insulating foam
- Vibration washers, coin (vibration-acoustic) damper
- Basalt mesh
- M300 concrete screed
- ZPS soundproof panel
- 16 mm triplex “soundline” and 12 mm Uline cladding
- Chemical anchors
- On-camera roles: mason/site foreman, customers, colleagues (no individual names given).
Category
Lifestyle
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