Q:The water heater for what the security hole tube

Asbestos exposure to the skin for a long time, harmful to the skin, eating into the body harmful. Pack on the exhaust pipe, do not move it, there is no harm.

Q:What are the exterior wall thermal insulation materials?

Organic thermal insulation material:Such as rice straw, rice husk, sugarcane fiber, softwood, kapok, sawdust, wood shavings, wood fiber and their products.Advantages: this kind of material has a small volume, a wide range of sources, most of the low price, but the moisture absorption is large, easy to decay after damp, and easy to decompose or burn at high temperature.

Q:What are common house thermal insulation materials?

In architecture, it is customary to control the flow of heat through the houseMaterials called thermal insulation prevent the heat from entering the room from being called heat insulation material. Insulation, thermal insulation materials insulation materials called duncan. The commonly used insulation materials can be divided into two categories: organic and inorganic. In its shape

Q:What's the difference between glass fiber and mineral wool?

Melting natural rock or metallurgical slag in a cupola or a pool furnace, etc. by blowing or centrifuging.

Q:Rock wool, EIA inorganic insulation mortar, polystyrene particles, polystyrene foam board advantages and disadvantages comparison?

Polyphenyl granule thermal insulation slurry: polyphenyl granule heat preservation slurry is composed of polyphenyl granule and heat preservation rubber powder material. This kind of thermal insulation material water absorption rate is higher than other materials, use must do crack waterproof layer, fire rating is B2 grade, crack resistant waterproof protective layer material by crack cement mortar composite glass fiber network.

Q:The classification of exterior wall insulation and its main categories

The second category is the engineering construction industry standards, external wall insulation engineering technical regulations. JGJ144 which includes five kinds of insulation system: the first is the EPS board exterior wall insulation system; second is the powder particles insulation slurry EPS exterior insulation system; third is the cast-in-place concrete wall of EPS board external insulation system; the fourth is a net cast system; fifth is the mechanical fixation of EPS steel wire the grid board exterior insulation system. With the existing external insulation insulation supporting standards, product standards and related engineering construction industry standards. The main supporting product standards are polymer based wall insulation glass fiber mesh; wall energy conservation project construction quality acceptance specification, that is, we know GB50411. Because most of these standards from 2003 to 2007 completed, but because of external wall insulation technology is developing very fast in recent years, the standard of life is short, basically all the standard in the revision, according to the development of technology, there are many standards are approved by the Ministry of construction, is being developed, the revision of the standard is JG149, the JG149 is the revision of the manuscript before the preparatory work. JG158 has just started the startup meeting and is preparing for the update.

Q:What materials should be used for building energy saving? Why?

Glass wool is second kinds of products of mineral wool, with silica sand, limestone, fluorite and other minerals as the main raw material, by melting method and centrifugal method, using flame or high energy gas blowing process, the molten glass liquid made of inorganic fiber. Glass wool products have good thermal insulation, heat insulation, sound absorption, non burning, corrosion resistance and other properties. They are widely used in building, piping, storage tanks, boilers, aircraft, ships and other parts of the insulation, heat insulation and sound absorption.

Q:How can the interior drain be silenced?

Bathroom noise treatment is the family decoration, is very important and easy to ignore a link. Because of the noise treatment process, unlike waterproofing, fire protection works are essential decoration projects. Ignoring the noise treatment of the household is only affecting the quality of life of the owner.

Q:What is the difference between ordinary slag wool rock wool board and basalt rock wool board?

Although rock wool and cotton products belong to CaO-Al2O3-SiO2 Portland slag system, but because of differences in their chemical composition on (Table 2), making them the phase composition of crystallization point falls in different regions in the CaO-Al2O3-SiO2 three phase diagram (Figure 1). From table 2 and figure 1 shows that the rock composition point (4, 5, 6 in the figure) are located on the 2 wollastonite gehetinite 2 calcium feldspar crystallization zone (CS-C2AS-CAS2 zone), the solid phase will have the three crystalline phase because of wollastonite, gehetinite, calcium do not have hard water feldspar characteristics, the water change is very small, the rock wool has good water resistance.

Q:What are the advantages of inorganic fiber spraying in construction engineering?

The company has professional inorganic fiber spraying construction qualification, can undertake a variety of insulation works, the main products of the company are: a rigid polyurethane foam composite board, polyurethane hard foam coating, inorganic fiber coating, glass wool and rock wool board auxiliary materials. Professional undertake spraying level external wall thin plastering system thermal insulation project.