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The difference is: fly ash brick block is a variety of fly ash industrial waste, the use of fly ash comprehensive utilization technology modulation processing production, concrete block this is a wide range, fly ash as a concrete block auxiliary material to add fly ash, the proportion and composition are a little different. The manufacturing process is different.
Fly ash resembles cement in appearance, varying from milky white to grayish-black depending on the combustion conditions as well as the color. The color of fly ash is an important quality indicator, which can not only reflect the amount and difference of carbon content. And to a certain extent, it can also reflect the fineness of fly ash, the darker the color, the finer the particle size of fly ash, and the higher the carbon content.
Fly ash is divided into low-calcium fly ash and high-calcium fly ash. Usually the color of high-calcium fly ash is yellowish, and the color of low-calcium fly ash is grayish.
Concrete, abbreviated as "concrete (tóng)": refers to the general term for engineering composite materials that are cemented into a whole by cementitious materials. The word concrete usually refers to the use of cement as cementitious material, sand and stone as aggregates; Cement concrete, also known as ordinary concrete, is widely used in civil engineering engineering when it is mixed with water (which can contain admixtures and admixtures) in a certain proportion and is mixed to obtain cement concrete.
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First of all, it is necessary to decompose bricks and blocks, simply say that bricks can be load-bearing, blocks are used as filling, and then analyze materials and construction technology
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Fly ash brick block is made of a variety of fly ash industrial waste, the use of fly ash comprehensive utilization technology modulation processing production, concrete block this is a wide range, fly ash as a concrete block auxiliary material to add fly ash, the proportion and composition are a little different. The manufacturing process is different.
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Upstairs, do you understand, the moderator is around me, it's actually a product, what are the raw materials used for concrete bricks, probably cement and fly ash (or sand or something), if you talk about concrete aerated blocks, it's different.
I don't know how to tell the difference, I can't see it.
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Summary. Differences:
1. Strength: Fly ash steaming bricks are pressed and formed, with high compactness, high bulk density and strength. The bulk density and strength of fly ash aerated concrete are relatively low.
2. Thermal insulation:
Fly ash pressure steaming brick thermal insulation performance is relatively low, fly ash aerated concrete thermal insulation performance is good, batching, mixed with foaming agent - aluminum F powder, before entering the autoclave, there is a static stop foaming stage, aluminum V powder will react with lime (calcium hydroxide) to produce hydrogen, forming a large number of independent, evenly distributed bubbles, after the foaming is over, aerated concrete to be cut into blocks or plates, and then enter the autoclave for heat sealing reaction, belongs to inorganic lightweight insulation materials.
3. Uses: Fly ash steaming bricks are generally used for masonry load-bearing walls, and fly ash aerated concrete is generally used for non-load-bearing walls.
The difference between autoclaved fly ash bricks and autoclaved aerated concrete blocks.
Differences: 1. Strength: Fly ash compression steaming bricks are pressed and formed, with high compactness, high bulk density and strength.
The bulk density and strength of fly ash aerated concrete are relatively low. 2. Thermal insulation: fly ash steaming bricks have relatively low thermal insulation performance, fly ash aerated concrete has good thermal insulation performance, in the ingredients, mixed with foaming agent - aluminum F powder, before entering the autoclave, there is a static stop foaming stage, aluminum V powder will react with lime (calcium hydroxide) to produce hydrogen, forming a large number of independent, evenly distributed bubbles, after the foaming is over, aerated concrete should be cut into blocks or plates, and then enter the autoclave for heat sealing reaction, which belongs to inorganic lightweight insulation materials.
3. Uses: Fly ash steaming bricks are generally used for masonry load-bearing walls, and fly ash aerated concrete is generally used for non-load-bearing walls.
I hope it can help you
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Hello dear! I'm here to answer your questions, and I'm glad you asked! The difference between autoclaved aerated concrete blocks and fly ash aerated concrete blocks; Autoclaved aerated concrete blocks can reduce the weight of the wall, and at the same time have the effect of sound insulation and seismic resistance, which is suitable for strong maintenance, infill walls and partition walls in industrial and civil buildings.
The bulk density is 450 550 kg per square meter or 650 750 kg per square meter, two sizes. The autoclaved aerated fly ash block and aerated concrete block mentioned in the question are the popular abbreviations in the project, which are not very accurate, and the aerated concrete block is the abbreviation of autoclaved curing aerated concrete, as for the former "autoclaved fly ash aerated concrete block" is to confuse the aerated concrete block with the fly ash block, it can be remembered in this way, the role of aerated is to produce a continuous bubble of regular size and uniform inside the block, so that the unit volume weight of the block is reduced to achieve the performance of light thermal insulation, and the general cementitious material is less, Therefore, it is necessary to autoclave curing to achieve foaming agent at high temperature and achieve the specified strength. Therefore, all aerated concrete blocks autoclaved curing is a necessary process treatment, there is no difference between the two in the problem, fly ash is only used as a cementitious material as a kind of added mineral.
Hope it helps.
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Red bricks are acid and alkali resistant to basic masonry, and the strength of gray bricks is relatively low, but red bricks and gray bricks have their own high quality and are often used in ground buildings; The strength of the block is small, the weight is small, and it is often used in the masonry of the frame filling wall, if it is the construction party, it depends on what is required in the design.
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This question is actually very easy to answer, red bricks are the original standard bricks, 230 * 110 * 50mm, plus the plastering is 240 * 120 * 60mm, this is the beginning of the red bricks (fired bricks), gray bricks, the specifications are slightly smaller, 220 * 100 * 40mm, also referred to as unburned bricks, the difference is very small, but gray bricks are the trend, because the current fired bricks have been canceled.
Let's talk about bricks and blocks, bricks are divided into solid bricks and hollow bricks, there is basically no difference between blocks, only the difference in size, but in the case of the same amount of work, the cost of bricks is much higher than that used in blocks
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Red bricks can withstand greater pressure, and can generally be used as load-bearing wall materials, while gray bricks are not as load-bearing as red bricks, and are generally used as materials for filling walls or temporary building walls. The block is specially used as a filling material, and he also has a feature that it has good thermal insulation, mostly used in exterior walls, such as the cold in the north, most of the aerated concrete blocks are used as the most external wall materials. Buy clothes.
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The country takes coal as the main energy source, 76 of the electricity is produced by coal, and the annual coal consumption reaches more than 400 million tons, accounting for the country's raw coal production for one year, the national emission of fly ash has exceeded 100 million tons, becoming the world's largest ash country, causing serious environmental pollution and occupying a large amount of land. >>>More
As an industry insider, I feel compelled to tell you about it; Ash aeration and sand aeration are collectively referred to as autoclaved aerated concrete blocks. Because of the different materials used, the weight and thermal insulation effect are also very different, it is divided into ash aeration (the main materials fly ash, white ash, cement, etc.), sand aeration (the main material is quartz sand, white ash, cement, etc. after ball grinding) The full name of sand aerated is (autoclaved light sand aerated concrete block) English **AAC its products have the characteristics of light weight insulation, heat insulation, flame retardant green environmental protection, etc., its thermal conductivity is equal to or less than, and its quality is much higher than that of ash aeration, It is one of the few products that can meet the relevant national requirements after the exterior wall masonry in the cold area of northern China without doing secondary insulation, although it is higher than ash gassing, but in addition to the cost of secondary insulation, the comprehensive use cost is lower than that of ash gas. Moreover, the building does not have the shortcomings of short life, easy to fall off, flammable, etc. caused by other secondary insulation materials.
It mainly reduces the water reduction effect and activity effect of fly ash, and the loss on ignition. >>>More
Generally, it is 15 20 cement dosage, and the grade of fly ash and self-test results should be considered, such as the recommended dosage of 15, that is, the cement dosage x 15 x excess coefficient.
The premise of making aerated concrete is that you need to understand what the whole production process is like, you can go to the encyclopedia to understand, I will only give you some simple answers based on my actual work. >>>More