In modern society, with the development of science and technology, we have invented many fiber cement boards. And plant fiber cement board, is one of them. So, what is the specification? What is the installation method? Specifically, what kind of performance does it have?
Plant fiber cement board can be used as veneer components. The installation process of veneer inner wall is the same as that of plasterboard, and the wall can be fixed by light steel keel, cement keel and wood keel and other structural forms. Plate joint treatment can use rigid joint or elastic unsealing, depending on the specific structural requirements of the wall.
The method of large board member is to make the keel skeleton, first cover the side of the skeleton with plate, and then fill the honeycomb block or plant fiber foam cement and other materials, and then fix the panel. According to the need, can be made of different apparent density and function of large board members.
The moisture content of the panel must be measured before installation. The moisture content should be controlled in the range of 8%~10%. Too high or too low is easy to cause cracks in the plate. The control of the moisture content of the plate is completed in the factory, and the construction site should pay attention to moisture protection.
Advantages:
Plant fiber cement board has excellent thermal insulation and sound absorption function. According to the test of the Institute of Physics of the Chinese Academy of Architecture, the sound insulation of the external wall of the test building made of plant fiber cement board reaches 41dB, which can meet the requirements of 40dB of the sound insulation of the three-level household.
Plant fiber cement board conforms to the three safety indexes of building materials, because of the cement as the matrix, plant fiber cement board has good safety and fire performance. Its combustion can reach the national fire-retardant class A fire standard, fire resistance limit up to 1.5~ 2.0h, when burned by open fire without harmful gas generation.
The plant fiber cement board is used, and the core layer of insulation material (such as grass mud) is filled in the middle to form a composite wall, and then the frame board is combined with the frame board structure to bear the external force received by the house, so that the house has a good seismic performance. The energy saving of this structure reaches the "second-level energy saving standard" above promulgated by the Ministry of Construction, and the seismic capacity is above 7.5.
Disadvantages:
Uv resistance is poor, when doing exterior wall or roof, the face facing the sun should be treated to prevent direct UV irradiation.
Hygroscopic expansion, dry shrinkage is larger.
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