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With the development of science and technology, the construction industry has also become easy and simple. A variety of building materials full of technological content have appeared in front of us. Mortar admixture is one of them. Mortar admixtures create greater value for buildings of all walks of life, making the building more perfect. What is the mortar additive? What are the types of mortar additives ? There are a wide variety of mortar admixtures on the market and many people are not clear. Don't worry, here's what I have to tell you about the most important types of mortar admixtures .
Mortar additives
Mortar admixture belongs to a series of screeded mortars and masonry mortars, mainly used for building masonry and plastering additives. In general, mortar admixture is an additive added to gravel or cement to improve the performance of grout. It can overcome cracking, hollowing and other problems. It is a very good building material additive and is convenient for migrant workers. The construction also improves the effect of the building and creates greater value for buildings in all walks of life.
Mortar admixture performance effect
Mortar admixtures have significantly improved the workability of the mortar, and well overcome the phenomena of hollowing, detachment, air bubbles, cracking, etc. after the construction of the wall surface, and solve the problem of mortar workability; at the same time, the mortar admixture can also be effective. The prevention of penetration and cracks, can block the infiltration of water, improve the resistance to penetration of the wall, it contains polymer polymer see laugh mortar shrinkage, more effective to improve the crack resistance and durability; Mortar admixture still Energy saving, environmental protection, high efficiency, good raw materials, and heat insulation, thermal insulation, etc., have been welcomed and supported by the construction industry.
Mortar additives
Mortar admixture is a series of titles, which are divided into masonry mortar and plastering mortar. Currently, there are many categories on the market: Lime King, Muddle, Rock Sand, Mortar King, Mortar, etc. It is an additive added to cement and sand to improve the performance of cement mortar. Can overcome hollowing, cracking and other conditions.
Lime King: Lime King is a new construction material that replaces mixed mortar lime, which can reduce the amount of cement in the mortar. The mortar capacity is increased by 12%-15%. It has good workability, and it can increase mortar strength instead of lime. Has good frost resistance, impermeability and moisture resistance. Improve the adhesive strength of mortar, overcome the disadvantages such as shelling, cracking, and sand falling; also have good elasticity, significantly improve workability, reduce labor intensity, and can significantly increase economic efficiency.
Wisdom: It is a product developed specifically for the plastering construction process. In addition to the general plasticization requirements of the mortar, it emphasizes viscosity and flexibility. For a long time, the adhesive properties of the imported polymer materials and mortar in the raw material components are greatly improved. The tiny voids in the original mortar system are filled with a flexible polymer, so that the flexibility of the mortar can be improved. The introduction of fibers can more effectively disperse stress concentrations and effectively prevent emptying and cracking of the plaster layer.
Rock sand crystal: a kind of cement enhancer. 95% of the world uses natural minerals. It is suitable for Portland cement, slag cement and masonry cement and can completely replace white ash. It is suitable for mortar, plaster, floor, pool, hollow brick, culvert and other mixed mortar and cement mortar in various industrial and civil buildings. With early strength, improve the flexibility, environmental protection and other characteristics.
Mortar King: Alias ​​rock fine, cement plasticizers and so on. It is a substance that acts on cement (cement) to improve the performance of cement mortar and belongs to the category of concrete admixtures. The main role is to improve the workability of the mortar, water retention, improve the bricklaying efficiency, reduce floor ash, and save cement and lime paste. In the mortar, it plays the role of diffusion cement, emulsification and foaming. It can overcome common diseases such as shelling, cracking, etc. It is best to use in the surface of inflated concrete or ordinary concrete, or in the use of primer or surface layer. The mortar in masonry has high plumpness, and it has antifreeze, water reduction, impermeability, and durability after hardening. Crack, insulation, heat insulation and other effects.
Mortar Po: An additive that significantly increases the strength of the mortar, improves the ease of the mortar, reduces the bleeding rate, and improves the frost resistance and impermeability. In the mortar can replace lime and reduce the amount of cement is particularly suitable for Portland cement, ordinary portland cement, slag Portland cement.
Mortar admixture dosage
The quality of the mortar admixtures is evaluated in terms of the quality of the dosing instructions. The admixture of the mortar admixture is generally controlled within the range of the amount of cement used. The product with the smaller amount of admixture is better (workability) If the consistency is the same, if the amount of mortar admixture is too large, the quality of the project will be affected.
Mortar admixture construction method
Mixing between mortar admixture and cement, generally the amount of cement is 0.05%-0.2%, mixing mortar is generally based on mechanical agitation. If vertical mixers and horizontal mixers are used, it is necessary to turn on some of the sand, agent, and water first, and then mix them thoroughly and then throw in all the cement and sand to mix; and the drum type mixers put the agent into cement and sand. Dry for 1 minute, add enough water and stir for 3-5 minutes. If mixing manually, dosing should double when stirring for the first time.
Precautions for the use of mortar additives
1, deposited in a dry and ventilated place, pay attention to moisture when storing and transporting.
2. When building masonry walls, pre-embedding work should be done well.
3, in the cold winter and rain more seasons, due to the large water retention of the mixed mortar, the brickwork is not easy to absorb water, bricks in the masonry should pay attention to the amount of wet water.
4, plastering the bottom should be a second survival, when the first plaster mortar after setting a second plaster.
Editor's summary: Now with the rapid development of China's construction industry and the continuous improvement of the quality requirements of the government and the public, mortar additives have also been commonly used in the construction of migrant workers. A small admixture has not only solved the empty drum of mortar. Many problems in construction, such as cracking, also play a role in the improvement of the overall economic efficiency and the protection of the construction environment. The major types of mortar admixtures on the market are listed above. (Some varieties may be named at home and abroad. Different, not all listed).
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