Which is better, coal gangue bricks or cement bricks, and which is better quality of red bricks, gre

This depends on the specific use. Cement bricks. Cement bricks are made of fly ash, cinder, coal gangue, tailings slag, chemical slag or natural sand.

A new type of wall material made of cement brick is called cement brick, which is a kind of energy-saving wall material as the main raw material, using cement as a coagulant, and not calcining at high temperature. It has high strength, good bearing and seismic performance and excellent thermal insulation, heat insulation and sound insulation performance. It has good water resistance, strong decorative function, never fades, corrosion resistance, no pollution, and can provide people with a better living environment; Moreover, the construction period is short and the comprehensive cost is low, so it has a broad market.

Coal gangue bricks not only have certain strength and durability, but also have certain advantages of thermal insulation, sound insulation and other advantages because of their porousness, and are easy to absorb water, brick walls and cement mortar.

The combination is better. So it depends on the specific use to choose bricks.

Coal gangue bricks can also be made into unburned bricks, and cement bricks are also a type of unburned bricks! The traditional cement unburned bricks are made of sand, gravel, construction waste and other materials plus cement; The coal gangue brick is a high-strength unburned brick made of coal gangue after grading and crushing, and then combined with relevant reinforcing agents!

Therefore, there is no way to say which brick is the best, but also according to the production materials used, cement ratio and other factors to be comprehensively considered!

The quality of green bricks is relatively good, generally need to be fired for about 20 days, and then stop the fire, seal the furnace door, and then add water to the furnace, slowly penetrate the bricks with water, and after five days, it can be baked. The bricks fired in this way are resistant to weathering, but the hardness is not as good as that of red bricks.

Ancient houses were built with green bricks, and they did not fall down for hundreds of years. The current house will not work for 50 years. In addition to the different calcination processes, the raw materials used are also very different.

Green bricks are made of fine clay dug down to a depth of 1 meter from cultivated land, red bricks are made of soft mountain soil, and cinder bricks are made by mixing cinder and lime and pressing.

Of course, red bricks are better, red bricks are made by firing, its compressive ability is relatively strong, and it is not easy to crush, and can be stored for a long time, while green bricks and cinder bricks, the compressive ability is not good, and it is very easy to powder in a humid environment. That's why you have to use red bricks.

Of course, it's a green brick. Ancient houses were built with green bricks, and they did not fall down for hundreds of years. The current house will not work for 50 years.

In addition to the different calcination processes, the raw materials used are also very different. Green bricks are made of fine clay dug down to a depth of 1 meter from cultivated land, red bricks are made of soft mountain soil, and cinder bricks are made by mixing cinder and lime and pressing.

<> color and raw material are different. The color of coal gangue bricks and red bricks is not the same, and the color of red bricks is much redder than that of coal gangue bricks, and the color is darker, so from the appearance, the red and dark color is red bricks. In addition, the two are not the same in terms of raw materials, coal gangue bricks are made of clay, shale, coal gangue or pulverized coal as raw materials, and the main raw material of red bricks is only clay, so the weight of red bricks is much lighter than the weight of coal gangue bricks, and the thermal insulation effect of red bricks is also very good, and the most popular red bricks on the market are red bricks.

Coal gangue bricks are sintered bricks made of internal combustion by using the defective products produced by mining coal as raw materials, with high strength and not afraid of moisture;

Fly ash bricks are bricks that use fly ash instead of cement, are evenly mixed with sand, and are cured with pressure steam to achieve strength.

The raw materials are different to meet your drawing design requirements and can be used.

Coal gangue bricks, also called coal gangue bricks, are a new type of environmentally friendly building materials. Its production cost is lower than that of ordinary clay bricks, and the use of coal gangue bricks not only saves land, but also consumes mine waste, which is a low-carbon building material that is conducive to environmental protection.

The main component of coal gangue bricks is coal gangue. Coal gangue is a solid waste discharged from the coal mining process and coal washing process, and its main components are Al2O3, SiO2, in addition to Fe2O3, CaO, MGO, Na2O, K2O, P2O5, SO3 and trace rare elements (gallium, vanadium, titanium, cobalt).

The gangue produced in the coal mine is crushed and fired into building materials and bricks, which can replace the current loess and is a new type of environmentally friendly building materials.

<> "What is the difference between cinder bricks and red bricks?

1. The raw materials are different.

The main raw material of cinder bricks is coal gangue, while the main raw material of red bricks is clay.

2. The color is different.

The overall color of cinder bricks is dark red, while the overall color of red bricks is not only red but also very dark.

3. Environmental protection is different.

Cinder bricks can be used and have a certain degree of environmental protection, while red bricks are made of clay, so they will cause certain pollution to the environment.

How to choose red bricks.

1. Look at the appearance.

When choosing a red brick, we must first pay attention to its appearance, that is, to see the flatness of its surface. If the surface is potholes, this kind of brick is generally not recommended to buy, because it is obvious that there is a quality problem, even if it is cheap, it can not be purchased, and there will be engineering quality problems after use.

2. Look at the color.

Generally speaking, for the best red bricks, they can be well distinguished in color, and the color is light red. However, if the color of this red brick is very red, it means that during the firing process, the heat and time are not as good as the palm of the ant, it may be due to the heating time is too long, or the firing heat is too large to cause the ants, this kind of red brick is not recommended to buy.

3. Listen to sounds.

When choosing red bricks, we can also listen carefully to its sound, gently tap its surface with our fingers, if the sound is crisp and pleasant, it means that its quality is good, you can buy and use it with confidence. If the sound is very dull, it is not recommended to buy, because the quality is also problematic, it is an inferior product, and it will bring great quality problems to the project after use, causing safety accidents.

The difference between gangue and coal gangue is that the composition is different.

Both white gangue and coal gangue are minerals used in the metallurgical industry. White gangue is a silicate mineral that is usually white or pale gray; Coal gangue is a rock mixed with organic compounds and inorganic compounds deposited with coal in the process of coal formation, usually in thin layers and in the coal seam or at the top of the coal seam and at the bottom of the coal seam. Coal gangue is divided into clay rock, sandstone rock, carbonate and aluminous rock according to the main mineral content.

The solid waste of gangue mountain includes stripping gangue, coal roadway gangue, rock roadway gangue, hand-selected gangue, coal preparation plant tailings, etc. The spontaneous combustion, eruption, landslide and leaching water of the gangue mountain all pollute the environment of the mining area.

Characteristics of gangue and coal gangue.

Coal gangue is a kind of solid waste discharged from the process of coal mining and washing and processing. China's coal gangue has accumulated more than 5 billion tons, and is still increasing at a rate of 3 0 3 500 million tons per year, and it is expected that by 2020, the annual emissions of coal gangue in China will increase to 72.9 billion tons.

The large amount of coal gangue is not only a waste of land resources, but also spontaneous combustion, rain, mud and other conditions, which cause serious harm to the environment. However, from the analysis of resource attributes, coal gangue is a valuable secondary resource, and its resource utilization is a necessary measure to prevent the occurrence of environmental disasters, and it is also one of the important tasks to realize the ecological civilization and circular economy development of China's coal industry.

Coal associated waste rock is a type of mining solid waste, which is the solid waste discharged during the process of excavation, mining and coal washing. It is a kind of mining solid waste, including the washing gangue of coal washing plants, the hand-selected gangue in coal production, the coal and rock discharged from the excavation of semi-coal roadways and rock roadways, and the mixture of white gangue outside the coal measure stacked with coal gangue.

It is a mixture of carbonaceous, argillaceous and sandy shale with a low calorific value. 20% to 30% carbon, some with humic acid. China has accumulated about 1,000 mt of coal gangue over the years, and continues to emit about 100 mt every year, which not only accumulates land, but also can spontaneously combust air pollution or cause disasters.

Coal gangue is mainly used for the production of gangue cement, concrete light aggregates, refractory bricks and other building materials, in addition to coal, coal and gangue mixed firing power generation, the preparation of crystalline aluminum chloride, water glass and other chemical products and the extraction of precious and rare metals, can also be used as fertilizer. <>

If you use bricks directly, it is better to burn bricks with yellow mud if you don't use concrete. However, it is best not to exceed two floors, that is, no more than six meters, and the two-story building should wait for the brick and sand ash maintenance period to be built well, and the partition wall should be made of coal gangue if the concrete is used as the frame, which should not need to bear the load of the house, and also save money and sand and ash.