Science and Technology, 2006, 06, talk about the internal thermal insulation construction technology of composite silicate polystyrene granule insulation slurry. Shen Xiaoping Li Tie (Zhejiang Huanyu Construction Group Co., Ltd., Zhejiang Shaoxing 312000) save energy as much as possible, such as construction In the process, it can not only achieve the effect of energy saving, but also ensure the quality of the project. This is due to the control of the quality of the internal thermal insulation construction of the external wall, and the construction of the internal thermal insulation of the external wall is of great significance for the development of a conservation-oriented society. With the development of new materials, the wall insulation technology is becoming more and more mature. This paper discusses the views on the construction technology of the internal thermal insulation of the composite silicate polystyrene granule insulation slurry.
Granular construction technology I. The origin of building insulation and energy conservation After the international oil crisis in 1973, energy conservation has attracted widespread attention from all over the world, and the construction sector is a large household, accounting for more than 30% of the total energy consumption of the national economy. Building energy-saving technology has become the world today. One of the focuses of the development of building technology. Through more than 20 years of research and practice, the understanding of building energy efficiency has gradually deepened. At present, the meaning of building energy conservation is: rational use and efficient use of energy in buildings, continuous improvement of energy efficiency, reduction of energy consumption, and improvement of building quality and function while saving energy. Among them, building energy conservation includes energy conservation of building envelope structure and energy saving of heating and heating system, and external wall insulation is energy saving of building envelope structure.
The external thermal insulation construction of the external wall improves the thermal performance of the enclosing structure, so that the special thermal energy supplied to the building can be effectively utilized inside the building, and the building structure is not quickly lost, thereby achieving the purpose of reducing energy consumption. However, due to various reasons, there are many quality problems in the construction of general granule external wall insulation materials, which are manifested in the problem of wall husking, hollowing, cracking, etc. Composite silicate polystyrene granule insulation slurry external wall The internal thermal insulation technology adopts the premixed dry mixing and packaging production process in the factory, and the rubberized material and the polyphenyl granule light aggregate are packaged in separate bags, and mixed into the slurry material by mixing with water at the construction site, which overcomes the inaccurate on-site measurement. The problem is that the same material is used as the insulation layer to make the insulation layer, the insulation effect is consistent, the thickness of the insulation layer is accurately controlled, and the composite silicate is used as the cementing material to solve the problem that the gypsum is not water resistant and the cement capacity is serious; As a additive in the slurry, the molecular material and the water-retaining thickener solve the problem of thin plastering and slipping at one time; the plastic-resistant alkali-resistant glass fiber mesh cloth and the polymer emulsion composite fiber reinforced anti-cracking mortar are solved. Insulation layer, overcoat layer, “emptyâ€, “drumâ€, “cracking†problem. The process is fast, the quality is easy to control, and the traditional insulation strip method Compared with the advantages of good integrity, high material utilization rate, and no need to make up the base layer; recycling waste polystyrene board as insulation material in the slurry, making full use of renewable resources and reducing white pollution is an economic benefit. Good social benefits, new technologies that can be promoted.
Second, the composite silicate polystyrene granule insulation slurry construction workers cleaning wall - brushing interface agent - wall squeezing ribs - smear insulation paste (resting for three days) - wipe layer insulation slurry ( Allow to stand for three to seven days) - wipe the crack-resistant mortar and press the mesh into it - scrape the flexible water-resistant putty - brush silicone rubber elastic primer - to make the interior.
ZL-7005 interface agent according to the mixing ratio (volume ratio) of 1:1:1, stir evenly into slurry for use.
2, thermal insulation slurry: first pour the mortar mixer into (3446) kg water, then pour a bag of 25kg insulation rubber powder, start stirring for 3 minutes, then pour a bag of 200L polyphenyl granule light aggregate, then stir After 3 minutes, stir well and pour out for use.
°3, crack-resistant mortar: ordinary Portland cement, medium sand, ZL ~ M8009 cement mortar anti-cracking agent with a strength grade of 42 5 according to the mixing ratio (volume ratio) of 1:3:1, stir evenly with a mortar mixer.
4, flexible water-resistant putty: according to the proportion of 1 part of putty glue 2 parts of putty powder, stir evenly into a paste for use.
1. Brushing interface agent: Use a roller brush to evenly apply the interface agent on the base wall surface. Do not miss the brush and do not brush too thick.
2, wall filling: according to the thickness of the insulation layer, the same thickness of prefabricated ZL composite silicate polystyrene granule insulation board with a wallpaper knife cut into a 30mm wide strip attached to the wall to control the thickness of the plaster to reach the rush The purpose of the tendons. The reinforced ribs should be pasted along the 50mm horizontal line, and the horizontal ribs should be made every 1 meter upward. Then, some vertical ribs can be punched appropriately.
3, wipe the thermal insulation slurry: the thermal insulation slurry is divided into two wipes, taking the thickness of 50mm as an example, first wipe 35mm, after drying for three days, then wipe 15mm, the second time insulation slurry should be flat, door and window hole, yin and yang corner Should be square and vertical. When the water content in the thermal insulation slurry is too high, the primary thermal insulation slurry should be controlled to about 15 mm.
4. The mesh cloth is pressed into the crack-resistant mortar: the grid cloth is cut, and the anti-cracking mortar is applied on the heat-insulating slurry, the thickness is controlled at about 3 mm, and the mesh cloth is pressed into the crack-resistant mortar with an iron trowel. The mesh mortar has a fullness requirement of 100%, the mesh cloth overlap width is not less than 50mm, and the edge of the mesh cloth is strictly prohibited from being dry-joined, and must be embedded in the crack-resistant mortar. The gauze mesh is to be crushed by 50mm, the male corner should be overlapped by 200mm, and the mortar fullness of the mesh at the lap joint is required to reach 100%. At the same time, it should be smoothed and straightened to keep the corner. Square and verticality.
5, scrape the flexible water-resistant putty twice, sanding sand, not exposed, do not leave Gui.
6. Apply silicone rubber elastic primer. The brush should be even and not leaky.
(3) Precautions 1. The thermal insulation slurry must be stirred by a mortar mixer. The slurry must be used with the agitation. No water should be added during use. It should be used within 4 hours.
2. The anti-cracking mortar is strictly prohibited from artificial ash. It must be stirred by the machine and should be used within 2 hours.
3. The moisture content of sand should not exceed 8%. It is forbidden to add water when stirring anti-cracking mortar.
4, the anti-cracking cover layer must be dry before the interior surface.
5. Do not use hard inelastic putty, and do not use inorganic and hard coatings for surface decoration.
In order to ensure the quality of the external thermal insulation project and strengthen the quality awareness of reasonable construction personnel, a set of basic system of faulty integration, such as technical quality post responsibility system, construction quality inspection, inspection system, inspection and test management system, information file Management system, quality control routine system. Regularly hold all construction management personnel and team leader meetings, clarify the quality objectives, quality responsibilities and a series of reward and punishment systems, and sign the quality responsibility book on the spot with the team leader. Formulate system rewards and punishments regulations to implement quality responsibility to the team, to individuals. Prepare the system rules for composite silicate polystyrene particles, clarify the operation methods and essentials of each process, each step, and do a good job in technical communication. Let new technologies and new materials truly demonstrate their advantages in practical applications.
(Finish)
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