Two months before entering the winter, the general preparation work should be done, the admixture should be tested for its anti-freezing properties, and on this basis the dry mortar should be test-mixed and test-matched. The winter mix ratio of the various dry mortars should be selected by calculating and adjusting the trial mixes. So the work should be completed in 10 low to prepare for winter construction.
Before masonry, the blocks should be cleaned of snow, ice and dirt, and no waterlogged and frozen blocks should be used for masonry. Mortar water should be heated by electric heaters. It is advisable to use polystyrene sheets for insulation around the hot water tank. Before using the dry mortar storage and mixing equipment it should be ensured that the mixing water is above 20°C and that the water temperature is not higher than 60°C. The mortar temperature should not be lower than 5°C during masonry.
When the temperature suddenly drops before and after the seasonal construction, the construction unit should be required to take emergency measures for masonry under construction: the materials for mixing mortar should be heated and the water temperature should not be higher than 60°C and the mortar temperature should not be lower than 10°C. The speed of mixing mortar should be closely matched to the progress of masonry and used as it is mixed. For the finished part of the masonry, it should be covered with insulating material and the temperature should not be sprinkled with water for maintenance below 5°C. Dry mortar construction in the winter there are many matters to note, I hope these information to help you, dry mortar equipment maintenance is also very important, dry mortar equipment is a high frequency use of equipment, and even some companies are 24 hours a day, so the maintenance of equipment is very important. Here we talk about several aspects to pay attention to when maintaining.
1, often pay attention to whether the fasteners are loose after use, timely tightening. Large dry mortar equipment will be used to work platform, should be regularly checked solid parts.
2, dry mortar equipment should be placed in a dry and non-corrosive media environment to ensure the normal service life of dry mortar equipment, dry mortar equipment are generally used carbon steel and sprayed with a layer of anti-rust paint, if placed in a long-term corrosive media environment or easy to rust.
3, dry mortar mixer gearbox after a period of time, to check the level of its lubricant level, timely replenishment to the observation hole can see the oil surface, the oil quality of 30 # mechanical oil. Lubricating oil for mechanical equipment is a very important part, if the lubricant is not timely replenished may cause wear and tear of the transmission parts, so check the lubricant regularly.
4, dry mortar equipment used to finish must be barrel and mixing leaves with clean water scrubbing and dry, long-term non-users can be in the same inside and blade surface on the anti-rust oil. If you do not clean the mixer leaves on the material, long-term idleness will be difficult to clean after clumping, and then mixing time will affect the mixing efficiency and uniformity.
5, feeding is strictly prohibited in the cement and sand caught in nails, wire and other hard objects to avoid damage to machinery. It is good to screen the material before feeding to ensure that there are no other impurities.
Winter mortar equipment maintenance
2021 10/21