Performance indicator unit test results Performance indicator unit test results

Bulk density Kg/m 3 430-870 water absorption%11.7-17.03.

Loose density Kg/m 3 520 barrel compressive strength Mpa 1.2 18

Water content% 1 mechanical strength Mpa 5.08

Thermal conductivity w/ (m k) 0.326 Softening coefficient not 0.84.

Apparent density kg/m3 640-860/(390 ⅹ 240 ⅹ190) Hollow rate% 48/(390 ⅹ 240 ⅹ 190)

1. Volcanic rock has excellent performance, besides the general characteristics of ordinary stone, it also has its own unique style and special functions. Compared with granite and other stones, basalt stone has lower radioactivity, which makes it safe to be used in human living places without radioactive pollution.

2. Volcanic rocks are weatherproof, weatherproof and durable; Sound absorption and noise reduction are beneficial to improve the auditory environment; Avoid glare, simple and natural, and help to improve the visual environment; Water absorption, anti-skid and heat resistance are beneficial to improving the somatosensory environment: the unique "breathing" function can adjust the air humidity and improve the ecological environment. All kinds of unique advantages can satisfy people's pursuit of simplicity and nature and advocate the new fashion of green architectural decoration.

3. Volcanic rocks are hard and can be used to produce ultra-thin slate. After the surface is polished, the gloss can reach more than 85 degrees, the color is bright and pure, and the appearance is elegant and solemn. Widely used in exterior wall decoration of various buildings, ground paving of municipal road squares and residential quarters, it is the first choice stone for all kinds of antique buildings, European buildings and garden buildings, and is deeply loved and welcomed by customers at home and abroad.

4. Volcanic cast stone pipe has excellent wear resistance and corrosion resistance, and can be used as the lining of pneumatic or hydraulic pipeline system for conveying corrosive substances and slurry in electric power, chemical industry, metallurgy, mining, coal and other departments. Fibers, tubes, sheets, nets and cotton wadding products made of basalt can be made into fire-retardant fabrics, clothes, machine parts, automobile brakes, pipelines, human organs, thermal insulation materials and so on to absorb noise. It can not only replace harmful asbestos and glass products, but also replace metal materials; And the quality is better. Compared with metal, it not only has light weight, corrosion resistance and long service life. The service life of the pipeline is 100 years, and its elasticity and toughness are 20% higher than that of steel. The plasticity of bar is higher than that of plastic; The strength of the plate is higher than that of light metal alloy, and it can withstand the crushing of tanks; Corrosion resistance is higher than that of glass.

5. Gravel (0.5 ~ 2cm) is widely used in the foundation construction of roads, bridges, buildings, dikes and seawalls. Compared with other stone materials, this product has the unique characteristics of high strength, high wear resistance and high hardness, and is especially suitable for subgrade pouring of runways in expressway and airports. It can greatly improve the performance indexes of road foundation, such as bearing capacity, compression resistance, wear resistance and fatigue resistance, and is conducive to ensuring the engineering quality to remain unchanged for a hundred years. It has become the first choice stone material for all construction project units and architectural design departments when determining engineering materials.

Distribution and types of volcanic rocks in Tengchong

Tengchong volcanic rocks are mainly divided into porous volcanic rocks and non-porous volcanic rocks. Among them, volcanic rocks with holes are divided into macroscopic holes, mesoscopic holes and microscopic holes. Generally speaking, the volcanic rocks at the top have the largest holes, and the deeper they go, the smaller the holes are. The colors of volcanic rocks produced in Tengchong are quite different, ranging from black, cyan, gray, grayish white, light pink to red. Heavy volcanic rocks are mainly bluish gray, while light volcanic rocks are mainly dark red.

Production Distribution Center 1: Shitoushan Volcanic Rock Production Base

It is produced in Heshun (Shitoushan) Industrial Park, about 8- 15km south of the county seat. It spans Heshun Township and Zhonghe Township. Shitoushan processing zone is mainly engaged in the processing and production of perforated volcanic rocks. You can see manufacturers producing volcanic rocks everywhere along the road. However, the scale is small. At the end of 20 12, the government forced the relocation, and many manufacturers moved from the roadside to the industrial park designated by the government.

Production and distribution center 2: volcanic rock production base of Lianshi Industrial Park.

This industrial park is located in Hutiaoqiao Industrial Park, Minglang Village, Lianhua Township, about 20 kilometers south of the county seat. This is one of the largest stone processing parks planned by Tengchong county government. There are more than 0/00 processing plants of large and small volcanic rocks in the park. Lotus Stone Industrial Park produces all kinds of stones. In addition to porous volcanic rocks, there are many manufacturers engaged in the processing and production of stone materials such as non-porous volcanic rocks in the park.

Production distribution center 3: Mazhan grey coarse-hole volcanic rock production base

Produced in Mazhan Township and Gudong Town, about 30-40 kilometers north of the county seat. Mazhan township is also one of the main producing areas of Tengchong volcanic rocks, but the quality of volcanic rocks produced by Mazhan is slightly lower than that of other producing areas, and there are many problems such as uneven holes, large color difference and large dimensional tolerance. Mazhan Gudong production area is recognized as a low-quality and low-price production area. If we don't pay attention to quality and quality, the price in this producing area will be more advantageous. However, the factory is very small. Few large-scale factories.