Fuda Technology . . . Ten questions and ten answers: dry underseat assembly building code / technical standard drive.

Q1
is underseor heating?
Underfloor heating, also known as ground radiation heating, heat media through the floor of the building by the tube, wire conduction to heat the ground layer, and then by the ground by radiation and ts flow of heating form heating indoor air, to achieve heating purposes of a heating method. (China Geostational Practical Manual" Xu Lixin Editor-in-Chief Liaoning Science and Technology Press, August 2014)
Q2 What is dry work method?
1-dry work method non-wet construction, the construction method of dry work construction. (DB32/T 3753-2020 "Comprehensive Assessment Standard for Assembly Buildings in Jiangsu Province")
2-dry work method non-wet construction, the site using dry work construction methods

. (DBJ41/T222-2019 Henan Province Assembly Building Evaluation Standard)
3-Dry Work Method: non-wet construction, using the construction method of dry work construction. (DB37/T 5127-2018 Shandong Province Assembly Building Evaluation Standard)
Q3 What is dry undersealing?
compared with traditional wet undersurflow, there is no need for undersurfing backfilling, increasing the net height of the room, reducing the load of the form of undersurfing. Dry underseal upper no heavy bean stone concrete backfill layer, directly for the finish layer, so the room heats up rapidly.
Q4 What is an assembly building?
1 - a building assembled from prefabribriited parts on a construction site. (GB/T51129-2017 Assembly Building Evaluation Standard)
2-Assembly building refers to the traditional construction methods of a large number of on-site work transferred to the factory, in the factory processing and production of building components and accessories (such as floors, wall panels, stairs, balconies, etc.), transport to the construction site, through reliable connection to the installation of the building on-site.
regulations related to dry undersealing in the Q5 Development Guide (Residential Buildings) 2019 for the Development of The Technical System of Assembled Concrete Buildings?
The Development Guide (Residential Building) for the Technical System of Assembled Concrete Buildings, published on July 4, 2019, with its 5.2.5 assembly floor, is detailed as follows: When the
-floor floor system adopts an overhead flooring system, overhead space can be fitted with pipelines and dry underfloor heating systems can be used when heating is required; The overhead space height of the
-floor floor system should be determined according to the type of integrated pipeline, pipe diameter size
, laying path, setting slope and other factors, the height of the finished surface, in addition to the height of the overhead cavity and the support layer of the floor, the thickness of the finish layer, still depends on whether the integration of undershelf and integrated undershelf product specifications;
floor should meet the requirements of carrying capacity, and should meet the performance requirements of wear resistance, anti-pollution, easy cleaning, corrosion resistance, fire prevention, anti-static and so on. Kitchen, bathroom and other room floor materials and construction should also meet the waterproof, non-slip performance requirements.
regulations related to dry underscoring in the Q6 Assembly Interior Decoration Technical Standard (Draft 2019)?
The following excerpts from the "Assembly-style interior decoration technical standards (draft for comments)"
4.5.5 heating pipe integrated deepening design should comply with the following provisions:
cold and cold areas of residential heating should use low-temperature hot water floor radiation heating system, and should use dry floor heating construction process, floor heating should adopt modular system, should meet the requirements of the standard assembly floor.
5.3.17 Dry and ground heating products production and processing should comply with the following provisions:
ground radiation heating products should be suitable for overhead ground integrated manufacturing, the
formation of standardized,
modular and series of integrated products;
Q7 What are the regulations related to dry undersealing in the SI System's 100-Year Guide to Residential Industrialization 2019?
5.5.2.3 Heating system detailed provisions: heating system - traditional wet paving undersurfing system, pipe damage can not be replaced, large floor load, has become a problem that plagues the building undersurfing industry. The dry undersurfing system has the advantages of fast temperature increase, short construction period, small floor load, easy to repair and transform later. Dry floor heating is different from traditional concrete buried underfloor heating systems (although the subsequent description of the system in the book is based on 15 years of 15 years of 15J939-1 assembly concrete structure residential architectural design example (shear wall structure) atlas), atlas practice also has cement pressure plate, because of the initial generation of dry underfloor heating module board strength is insufficient.
Fuda high-strength dry undersurfing module compression strength of more than 1200kPa, the overall system saves 12mm cement pressure plate, thereby minimizing the thickness of the tectonic layer, is a new generation of dry undersurfing system.
are the regulations related to dry undersealing in the standard diagram of the assembly residential architectural design of Q8 18J820?
atlas 8.3.3 stipulates that when the heating system uses a ground radiation heating system, it is advisable to use dry work method construction, with the following drawings:
. Q9 GB/T51231-2016 What are the regulations for dry undersealing in the technical standards for assembled concrete buildings?
7.3.4 stipulates that the heating system should adopt low temperature floor radiant heating products suitable for dry work construction.
Q10 in Shandong Province assembly-type residential building full decoration technical requirements 2018 in the dry underseating related provisions?
In the 4.1 heating system detailed provisions: heating system should use dry work method construction of the ground radiation heating mode, and the floor integrated design and installation, ground radiation heating system should be integrated with the assembly floor connection structure, radiator installation location should be able to make the room temperature evenly distributed.
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