Q:Is the calorimeter for building materials calorific value?

Calorific value calorimeter for building materials is used to determine the calorific value of building combustible materials such as stone, wood, concrete, and even dispersed mineral wool and polymers.In the standard set / group under the condition of oxygen nitrogen calorimeter specimen is placed in a certain quality of a constant volume, in order to test the temperature rise test as the foundation, considering all the heat loss and latent heat of vaporization, heat of combustion calculation sample.

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:What is the heat preservation material?

In accordance with applicable temperature range: can be divided into high temperature (700 degrees Celsius), medium temperature (1000~700 degrees Celsius) and low temperature (less than 100 degrees Celsius) three categories..According to different shapes are divided into: powder, granular, fibrous, block and other categories, but also divided into porous, mineral fiber and metal.According to different construction methods are divided into: wet wipe, filling type, lashing type, wrapped winding type, etc..

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:What are the requirements for floor and exterior wall waterproofing in building construction?

Building exterior wall waterproof design should include the structure through windows and doors, awning, balcony, cracks, out wall casing, capping, embedded parts, prefabricated wall parapet and the intersection area of waterproofing. 5.1.3 the waterproof layer of the exterior wall shall be installed on the surface of the water.

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

The first is the product standard, the complete expansion of polystyrene board external insulation board system, this system in our country now use probably accounted for more than 62%, some statistics in 80%, because the statistics are not accurate, but it is the highest market share, is also the most mature external insulation system.

Q:How about the appearance of glass wool, mineral wool and asbestos?

A fluffy short staple fiber made from mineral material. Including rock wool and slag cotton. Melting natural rock or metallurgical slag in a cupola or a pool furnace, etc. by blowing or centrifuging.

Q:Advantages of exterior wall energy saving and environmental protection heat insulation coating

Although the market is rich in exterior wall insulation products, but inorganic thermal insulation materials in addition to A-class fire retardant performance and good insulation effect, but also has excellent insulation system structure without network. In simple construction, and buildings with life, water resistant anti crack and anti hollowing fields occupy an increasingly important position.

Q:What are the differences and prices between rock wool board and mineral wool board?

Rock wool and mineral wool belong to mineral wool, are made of natural rock, or (and) slag as raw materials, high temperature melting, formed in the interaction of centrifugal force and air under inorganic fibrous products;

Q:Fireproof rock wool board can be used as firewall?

Rock wool board mainly by hydrophobic rock wool board pendulum method for production of insulation layer material, composite rock wool board is the natural rocks such as gabbro, Xuan Wuyan, dolomite, iron ore, aluminum and vanadium as the main raw materials, inorganic fiber adding binder, hydrophobic agent by high temperature melting, made of fiber the implementation of standards, GB/T25975-2010 is "building exterior insulation rock wool products"; rock cotton in the industrial slag blast furnace slag such as slag, phosphorus slag and fly ash as the main raw material, inorganic fiber after remelting fibrosis made. This paper introduces the main A-fire exterior wall external insulation system on the market (the following text from Chinese architectural design and Research Institute of standards "exterior insulation construction" Standard No. 10J121) the implementation of standards is GB/T11835-2007 "insulation rock wool, slag wool and their products".