1. Concrete companies need to invest manpower and material resources to produce traditional pump mortar. In the current shortage of cement and sand resources, it is actually a big waste to still use these raw materials to produce pump mortar.
2. In addition, generally at least 1 cubic meter of pump mortar is required to lubricate the pump once. For ground pumps with long delivery pipelines, sometimes it takes 2 to 3 cubic meters to lubricate the pump. Cubic meters of pump mortar require cash settlement for raw materials, and it is also a very large expense for concrete production companies that require advance financing for concrete products.
3. Pump truck lubricant is made of a variety of high molecular polymer materials. At room temperature, it can be quickly dissolved and become transparent within 3 to 5 minutes by mechanical or manual stirring. It is a stable viscous liquid. When the entire liquid after the pump truck lubricating agent is dissolved passes through the pipe, part of the lubricating pump solution adheres to the pipe, thereby achieving the effect of lubricating the pump pipe, and the lubricating pump solution and concrete do not dissolve each other. This will not affect the various properties of concrete. It is also very convenient to use. There is no need to add any other equipment or a separate lubricating pump. The lubricating pump fluid goes in front of the concrete and can be carried out at the same time as the concrete pumping, which greatly saves the expenditure of manpower and material resources.
4. Traditional pump mortar sometimes needs to be transported by a separate transport truck. Sometimes the pump mortar is placed on the upper part of the concrete mixer truck and the concrete is loaded on the lower part. This is not only a waste of vehicle use, but if the transport truck loaded with pump mortar and concrete at the same time cannot rotate during transportation, otherwise the concrete and mortar will be mixed together. If the road is long or the concrete workability is slightly poor, it will If the workability does not meet the requirements, it will be returned. In addition, the first truck of concrete after the pump cannot be rotated during the road, resulting in poor workability, and it is also easy to cause the pump to become blocked. Pump truck lubricant is very convenient to use, so many pump truck drivers always keep a few bags on their cars, so that they can quickly and easily achieve the purpose of lubricating the pump.
5. Because the strength level of pump mortar is different from that of concrete, it is generally mainly used for pump lubrication and has little other uses. Some construction units use pump mortar in places that do not require high strength, such as Floors, construction site floors, etc. The cost of pumping mortar is a huge waste if it is paid by the concrete company or the construction unit. At the same time, pump mortar also brings some quality hazards. In the past, there have been serious quality accidents in some construction sites where pump mortar was used for structural parts, resulting in unqualified project acceptance and final demolition.
6. Comparison of lubricating pump performance. The pump lubricating effect of some better-quality pump truck lubricating agents is better than that of pump mortar. The lubricating mechanism of mortar is to utilize the smaller friction of lubricating pump mortar. , some cement slurry will adhere to the pipe wall when passing through the pipe, and this cement slurry will lubricate the concrete transported later. Based on this principle, the pump truck lubricant is composed of polymer materials, and it will adhere to the pipe after it is moistened. The lubricating ability of the film layer on the pipe wall is significantly better than that of the pump mortar.
7. Chinese patent discloses a concrete pumping pipeline lubricant and its preparation method, which is characterized in that its raw material components and the mass percentage of each component in the total raw material are: sodium alginate 0.3-2%, polyethylene oxide 0.2-3%, acrylic polymer 8-20%, water 75-91.5%. The concrete pumping pipeline lubricant product prepared by the method of the invention has stable performance, low price and low dosage. It has good water solubility, can significantly reduce the friction between concrete/mortar and the pump pipe wall, has no adverse effects on concrete/mortar, and is environmentally friendly and pollution-free. This patent belongs to an aqueous pumping pipe lubricant. Compared with powdered pumping pipe lubricants, the price is too high and it is inconvenient to use. In addition, polyoxyethylene and acrylic polymers are dissolved in water in advance and may degrade and lose their lubrication function.
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