Application of common building materials such as interface agent


Release time:

2015-08-11

Author:

New Earth Group

Source:

Application of common building materials such as interface agent

    interface agentIs a kind of adhesive, is generally made of vinyl acetate-ethylene, with super adhesive force, excellent water resistance, aging resistance. Improving the bonding strength of the plastering mortar to the base layer can effectively avoid the problems of hollowing, shedding, shrinkage and cracking of the plastering layer. For treatment of concrete, aerated concrete, lime sand brick and fly ash brick and other surfaces, to solve the problem that the interface is not easy to bond due to the strong water absorption or smoothness of these surfaces, resulting in hollowing, cracking and peeling of the plaster layer. Can greatly enhance the adhesion between the old and new concrete and concrete and plastering mortar. Can replace the traditional concrete surface chiseling process, change.Good aerated concrete surface plastering process is an indispensable supporting material for modern construction and decoration construction. Interface agent is usually used on the concrete surface, because the concrete surface is too smooth, through the use of this product, can make the grass-roots surface becomes rough, can increase the cement mortar on the grass-roots cohesion, to avoid plasteringThe layer hollowing out of the shell, thus replacing the artificial chiseling process.
Mortar king is a common name, some people also call it rock fine, cement plasticizer and so on. It is a role in the binder (cement), used to improve the performance of cement mortar material, belongs to the category of concrete admixture. The main role is to improve the workability of the mortar, water retention, improve the efficiency of masonry, reduce the floor ash.Save cement and lime paste. In the mortar, it mainly plays the role of diffusion cement, emulsification and foaming. Can overcome the shell, cracking and other common problems, in the inflatable concrete, ordinary concrete ground, backing or surface layer to use the best, masonry mortar plumpness is high, after hardening with frost resistance, water reduction, seepage control, durability, crack resistance, heat preservation, heat insulation, etc. There are two main components of mortar king: one is to introduce gas, and the other is to thicken. The air-entraining component can be selected from rosin thermopolymer, alkyl sulfonate, fatty alcohol sodium sulfate, etc.; the thickening component can be selected from cellulose, propylene, etc.
Plastering mortar refers to the surface of the base material, both to protect the grass-roots level and increase the aesthetic role of mortar. Compared with masonry mortar, plastering mortar has the following characteristics:
① The plaster layer does not bear the load;
The plaster layer and the base layer should have sufficient bonding strength, so that it does not fall off or crack in the construction or under the action of long-term self-weight and environment;
③ The plaster layer is mostly thin layer and applied in layers. The surface layer shall be smooth, smooth, detailed and beautiful;
④ used in dry environment, large area exposed to the air.
The classification, performance and application of plastering mortar according to its different functions, plastering mortar can generally be divided into ordinary plastering mortar and special purpose mortar (with waterproof, acid resistance, heat insulation, sound absorption and decoration purposes such as mortar). Common common plastering mortar has cement mortar, lime mortar, cement lime mixed mortar, hemp knife lime mortar (referred to as hemp knife ash), paper reinforcement lime mortar (paper reinforcement ash), etc. The application of plastering mortar is firmly bonded to the base surface, so it is required that the mortar should have good workability and high bonding force. Plastering mortar is often divided into two or three layers of construction. The role of the bottom mortar is to make the mortar and the base can be firmTo bond, should have good water retention. The middle level is mainly for leveling, sometimes can be omitted not to do. The surface layer is mainly used to obtain a smooth and smooth surface effect. The role and requirements of each layer of plastering meeting are different, and the mortar selected for each layer is also different. At the same time, the characteristics of the base material and the different parts of the project, the mortarThe technical performance requirements are different, which is also the main basis for selecting the type of mortar. Cement mortar should be used for wet or high strength parts; mixed mortar is mostly used for indoor bottom or middle layer or surface layer plastering; lime mortar, hemp knife ash and paper bar ash are mostly used for indoor middle or surface layer plastering. More water for concrete base surfaceMud lime mixed mortar. For the plank base and surface, multi-fiber materials increase its tensile strength to prevent cracking.

Key words: