Advantage of premix mortar& disadvantage of on site mix mortar
Author：ANT CONSTRUCTIONS Comefrom： Createdate：2020/11/15 14:13:29 Hits：31
Advantages of premix mortar and disadvantages of on site mix mortar
Definition of ready premixed dry mortar
Premixed dry mortar is produced by professional ready premix dry mortar factory, it is a mixture of cement based and fine aggregate, mineral admixtures, reinforcing materials and admixtures in a certain proportion. One of the emerging dry mix materials in the building materials field.
Ready premixed dry mortar was developed from the European construction market in the 1950s. Since the 1990s in China, the development of ready premixed dry mortar getting more and more, the application of ready premixed dry mortar is becoming popular and corresponding technical regulations, guiding policies and norms are gradually being formulated and implemented.
The social benefits and technical advantages of ready premixed dry mortar
With the continuous improvement of engineering quality, environmental protection and civilized construction requirements, the shortcomings and limitations of the construction site mixed mortar are becoming more and more prominent, the ready premixed dry mortar is favored by many people because of it's more and more advantages in terms of technical performance and social benefits.
The shortcomings and limitations of traditional on site mixing mortar
On site mixing mortar is difficult to meet the requirements of civilized construction and environmental protection
the storage sites of various raw materials (including cement, sand, lime paste, etc.) will affect the surrounding environment.
a lot of dust will be formed during the mortar mixing process, especially the cement is the main pollution source of construction dust.
the mixing equipment for mixing mortar on construction site often has excessive noise, and noise disturbance has also become a major environmental problem in cities.
With the advancement of society and the improvement of people’s life quality, environmental issues have become mark of a city, and the various environmental issues that appear on the construction site as mentioned above not only hinder the image of the city, but also affect people’s daily work and life.
abnormal fluctuations in the quality of mortar caused by inaccurate measurement. The on-site mixed mortar often does not have strict measurement. It is based on the estimation of the workers on site, and the mixing ratio cannot be strictly implemented; it is impossible to accurately add additives; it is impossible to accurately control the amount of water added. ; The uniformity of mixing is difficult to control, and the quality of raw materials fluctuates greatly. For example, the mud content and gradation of river sand from different sources are quite different. Under these conditions, abnormal quality fluctuations of the on site mortar mixed are inevitable.
the construction performance of the on-site mixed mortar is poor. Because on site mixed mortar rarely add additives, the workability is poor, it is difficult to carry out mechanical construction, the operation is time-consuming and laborious, and there are many quality accidents, such as cracks in the plaster mortar, peeling, leakage of waterproof mortar, etc.
the variety of ready-mixed mortar is single, which cannot meet the different requirements of various new building materials for mortar.
Advantages of ready premixed dry mortar
Ready premixed dry mortar is produced by a professional manufacturer, has a fixed place, a complete set of equipment, accurate measurement, and a complete quality control system. For example, a complete computer control system ensures that the entire production process is accurate and stable. Precise computer-controlled measurement ensures the accuracy of raw material weighing. Forced mechanical mixing ensures that the materials are evenly mixed. Standard and strict quality inspection makes the product quality balanced. Such a variety of measures have fully guaranteed the product quality.
Excellent construction performance and quality
Ready premixed dry mortaris modified according to product types and performance requirements, with specific design ratios and addition of various additives for modification. For example, commonly used additives include cellulose ether, redispersible latex powder, thixotropic lubricant, and defoamer , Air-entraining agent, coagulant, water-repellent, etc. Modified mortar has excellent construction performance and quality, good workability, convenient for masonry, plastering and pumping, improving construction efficiency, such as manual plastering 10m2/h, mechanical construction 40m2/h; one time masonry length of one spread is greatly increased. Due to its excellent construction performance and quality, the construction quality is improved, the thickness of the construction layer is reduced, and materials are saved. The improvement of construction quality has greatly reduced the chances of repair and rework, and at the same time can reduce the long-term maintenance cost of the building.
Complete product range to meet various engineering requirements
Ready premixed dry mortar production companies can design formulas according to different matrix materials and functional requirements, such as various aerated concrete blocks, lime-sand bricks, ceramsite concrete hollow blocks, fly ash bricks, etc. with high water absorption. High water retention masonry and plastering mortar designed for wall materials; used for self-leveling mortars that require high flatness on the ground. It can also meet a variety of functional requirements, such as heat preservation, impermeability, grouting, repair, decoration, etc. According to incomplete statistics, there are more than 50 types of dry mortar.
High-quality environmentally friendly materials have obvious social benefits
Ready premixed dry mortar is a pre-mixed material in the factory. It can be used only by adding water and stirring on the construction site, and it has very little dust and is more environmentally friendly.
Because of its excellent construction quality, it will greatly increase the confidence of contractors and owners.
because of its excellent operating performance, fast construction speed, low labor intensity of workers, and less dust on site, it is beneficial to the health of workers and is more in line with the people-oriented purpose of our country.
it meets the needs of development of bulk cement in different.
