Service type two society - resource-saving and environment-friendly society, residential energy efficiency standards have been strengthened, energy-saving buildings gradually become the mainstream of development. The research and application of new building materials play an important role in this energy-saving revolution, and always lead the way of development.
Industry experts Anhui Rui new building materials factory Chen said, in the big family of new building materials, ceramic because of its excellent performance, has a rapid development in the world, are widely used in the new energy saving building. As an inland region, Anhui has also gained rapid promotion in this area in recent years, pregnant with huge emerging markets and business opportunities
Ceramsite has many excellent properties which other materials do not have. These excellent properties make it have the function that other materials can not replace:
1., small density, light quality
The bulk density of ceramsite itself is less than 1100kg/m3, generally 300~900kg/m3. The aggregate density of concrete made of ceramsite is 1100~1800 kg/m3, corresponding to the mixture
The compressive strength of the soil is 30~40MPa. The biggest characteristic of ceramsite is hard appearance, but there are many micropores inside. These pores endow the ceramsite with lightweight properties. The density of No. 200 ceramsite concrete is about 1600 kg/m3, while the density of ordinary concrete of the same grade is as high as 2600 kg/m3, and the difference between the two is 1000 kg/m3.
2. insulation, heat insulation
Because of the internal porous, ceramsite has good thermal insulation, and the thermal conductivity of concrete prepared by it is generally 0. 3~0. 8W/ (m.K) is 1~2 times lower than ordinary concrete. Therefore, ceramsite building has a good thermal environment.
3. good heat resistance
Ceramsite has excellent fire resistance. The ordinary ceramsite concrete or ceramsite concrete block has the advantages of heat preservation, earthquake resistance, frost resistance, fire resistance and the like, and the fire resistance is more than 4 times of that of the ordinary concrete. For the same refractory period, the sheet thickness of ceramsite concrete is 20% thinner than that of ordinary concrete. In addition, ceramsite can also prepare refractory concrete below 1200 degrees. At 650 degrees of high temperature, ceramsite concrete can maintain 85% of its strength at normal temperature. Whereas ordinary concrete can only be 35%~75% at ambient temperature.
4., good seismic performance
Ceramsite concrete has good seismic performance because of its low quality, low modulus of elasticity and good deformation resistance. In the 1976 Tangshan earthquake, 4 large ceramsite concrete slabs built in Tianjin were basically intact and could be used as usual. Moreover, a considerable number of brick and concrete structures around them were damaged in varying degrees. Although it is related to the building structure system, ceramsite concrete has excellent seismic performance, and it is also an important reason. In 1976 Italy Liuli area 9 earthquake occurred, statistics show that the brick building damage rate of 40%~60%, the frame structure of clay hollow brick construction building damage rate was 33%, while only 5% damage rate of ceramsite concrete construction. The seismic performance of ceramsite can be seen.
5. 、 low water absorption, good frost resistance and good durability
Ceramsite concrete is superior to ordinary concrete in acid, alkali corrosion and frost resistance. 250 ceramsite concrete, the strength loss of 15 freeze-thaw cycles is not more than 2%. In 1996, the relevant departments are measured, of ceramsite concrete projects throughout the country since 1985, the results show that both precast or cast-in-place, indoor and outdoor, with no reinforcement corrosion, measured the carbonation depth of less than 30mm, the late strength can also continue to grow. Therefore, ceramsite concrete is an excellent construction material and should be popularized.
6. excellent impermeability
According to many tests, the impermeability of ceramsite concrete is better than that of ordinary concrete. Taking 20MPa ceramsite concrete and ordinary concrete as an example, the impermeability index of ordinary concrete is B6, and ceramsite concrete can reach B18 to B25. In 1970, Tianjin constructed an air raid shelter with 20Mpa ceramsite concrete (deep 3M, 0 groundwater level). 9M) there was no leakage during the inspection until 1980. Ningbo built two 20MPa ceramsite concrete storage ship (carrying capacity 80T), 13 years of water operations, has never been leaking. Therefore, ceramsite concrete is one of the excellent building materials for dam and underground engineering.
The excellent ability of anti alkali aggregate reaction
It has been shown that haydite has excellent anti alkali aggregate reaction ability, can increase security to a certain extent, prolong the service life of the building.
The strong adaptability
Decades of production practice at home and abroad has proved that, according to different resource conditions, clay, shale, fly ash or other solid waste can be used to produce ceramsite. According to different purposes and needs of the market, can produce different products of ceramic bulk density and particle size (super lightweight aggregate structure, insulation ceramic, structure ceramic), also can produce special purpose ceramic, such as high temperature resistance, acid resistant ceramic and ceramic ceramic flower etc..
With these excellent properties, ceramsite can be widely used in building materials, horticulture, food, beverages, refractory, thermal insulation materials, chemical industry, petroleum and other fields. The application field is more and more extensive and continues to expand. The company has the actual production capacity of East China's largest ceramic production line, called peer joint efforts to increase investment in Anhui, East China and the promotion of development strategy, contribute to China's resource-saving and environment-friendly direction!