How to apply polyurethane insulation sound insulation system on the floor of the building.

Background
Ninghai Hot Springs Lijing Garden is the first commercial housing residential district in the town of Deep , Ninghai County, Zhejiang Province, the project is located in Ningbo City, Zhejiang Province, the second phase of the project consists of 9 residential buildings and 1 kindergarten. At present, the total volume of the second phase of the project has been completed more than half, is expected to be completed next year. The ground insulation project of the second phase of the Lijing Garden project uses shanghai's larger polyurethane insulation materials, and the larger shanghai construction team completes the spraying

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use of products
due to residential buildings on the building sound insulation effect is higher, the project uses the larger YD4530-F floor insulation special polyurethane.
floor insulation sound insulation polyurethane products low thermal conductivity, paste strength, can protect the main structure of the building, increase the life of the building, effectively reduce moisture erosion of the building, and add modified graphite flame retardant, up to B1 flame retardant;
floor ground insulation sound insulation system diagram
construction steps
construction process
construction preparation
site construction tools include: vacuum cleaner, interface sprayer, air nail gun, two-component polyurethane foam sprayer.
treatment
before the construction of polyurethane spraying, it is possible to clean up the floating ash, avoid dust, and keep the grass-roots flat and clean.
brush interface agent
the interface agent continuously and evenly sprayed on the grass surface, to prevent dust slag, shrink cracking and other adverse effects, enhance the base bonding force. The project uses oriental rain rainbow's Huasa PMC-500 multi-functional interface agent, with high penetration, high enhancement, multi-purpose characteristics.
the construction of the
protective layer, before the construction of the wall around the isolation protection, to avoid foam dispersion, pollution of the wall.
spray polyurethane insulation insulation layer
after the vertical isolation layer construction of the wall, spray hard bubble polyurethane insulation layer. Start a two-part polyurethane foam sprayer, wait for the liquid ratio to adjust to normal, formally began spraying operations, the atomized polyurethane foam sprayed on the floor of the floor, immediately formed a hard polyurethane foam of about 1 cm.
rebar mesh laying
polyurethane floor construction is completed within 20 minutes is strictly prohibited, cooked 24 hours later, rebar mesh laying.
concrete protective layer pouring
using C20 fine stone concrete for pouring, to ensure that the reinforced mesh in the middle of the thickness of the protective layer.
the protective layer telescopic seam
after the protective layer concrete has finally condensed, the telescopic seam cutting.
construction steps of the ground insulation insulation system of the building were largely completed.
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