Discuss the advantages and disadvantages of rubber powder polystyrene particle exterior wall insulation system

The rubber powder polystyrene particle insulation system is one of the three major exterior wall insulation systems with relatively mature exterior wall insulation technology in my country. It has been widely used in various regions of our country. Its main insulation material is polystyrene particles, and the auxiliary materials are polymer rubber powder polystyrene particles insulation mortar, alkali-resistant fiberglass mesh, expansion anchors, etc. The construction method is to combine polystyrene particles with polymer rubber powder polystyrene Add water to the granular insulation mortar and pre-mix it into a slurry. Apply it flatly to the wall. The thickness of each layer is 20mm. Then, after drying, apply alkali-resistant fiberglass mesh cloth, apply 3 to 5mm of anti-seepage and anti-cracking mortar, and decorate the surface with bricks. The surface must be fixed with galvanized steel wire mesh and expansion anchors, and then painted with exterior wall paint or decorated with tiles.
Advantages of glue powder polybenzene -pelvic particle insulation system
Good insulation and energy -saving effects, the preservation layer and the wall are easy to bond, and the flatness requirements of the grassroots walls are not high, the construction process is simple, the project cost is low, and the cost of the project is low, and the cost of the project is low, and the cost of the project is low. It generally does not reproduce the problems of large-scale cracking, hollowing, and shedding, and is technically feasible. Since the mixed slurry is as easy to apply as traditional cement mortar, and the bonding strength is very good, it is easy to popularize.
Disadvantages of the rubber powder polystyrene particle insulation system
The fireproof performance is poor, but it is better than the expanded polystyrene board thin plastering system. The main technical contradiction between the insulation effect of the rubber powder polystyrene particle insulation system and the strength of the insulation layer is: the more polystyrene particles in the insulation mortar, the smaller the cement rubber powder content, and the strength of the insulation layer is low, while the insulation layer The greater the energy-saving effect; if the content of cement glue powder in the insulation slurry is more, the content of polystyrene granules will be smaller, the strength of the insulation layer will be higher, and the insulation energy-saving effect will be worse. Therefore, the material ratio during construction of the rubber powder polystyrene particle insulation system must be strictly in accordance with the requirements and standard preparation of the industry standard JG158-2004 “Rubber powder polystyrene particle exterior wall insulation system” to ensure the thermal insulation and energy saving effect of the system; secondly, Details that should be paid attention to during construction, such as the reservation of wall expansion joints, the overlap of alkali-resistant fiberglass mesh or galvanized steel wire mesh, the number and length of expanded mushroom anchors, etc., should be noted during construction. Pay attention (of course these are basic elements of construction) to best ensure the safety, stability and long-term use of the entire system.
Due to several fires that have occurred due to exterior wall insulation, it is clearly stipulated in Public Fire Protection Document No. 65 that Article 2 of Gongtong Zi [2009] No. 46 document must be strictly implemented. Civilian exterior insulation materials must have a combustion performance of Class A. s material. Polystyrene particles are classified as Class B materials due to their own material problems. At present, the number of rubber powder polystyrene particle exterior wall insulation systems is gradually decreasing, and the thermal insulation performance of rubber powder polystyrene particle exterior wall insulation systems is very superior to other insulation materials, so we are still waiting for the release of new standards. </p