Underwater non dispersing flocculant manufacturer

Description :

　　Instructions for use

　　1. Underwater non dispersing flocculants are solid powders and should be mixed together with cement and sand in a forced mixer.

　　2. The mixer should be a forced mixer, and the mixing time is generally 3 minutes. If a self falling mixer is used, the mixing time should be doubled.

　　3. When using traditional underwater construction equipment such as conduits and pumps, a low dosage of 1.5-2.0% of non dispersing concrete flocculant can be used underwater; in

　　When using land construction equipment such as buckets and chutes, i.e. when there is a drop in the concrete in the water, a high dosage of 2.0-3.0% of the concrete can be directly used. In other cases, it can be used

　　According to the appropriate increase or decrease in the drop of concrete in water, it is generally recommended to be 2.0-2.5%.

　　4. It is advisable to use a high dosage of 2.0-3.0% for pile sealing, and a low dosage of 1.0-1.5% for the pile body to prevent pile breakage.

　　5. Under normal circumstances, the coagulation time of non dispersing flocculants underwater increases with the dosage. If necessary, they can be used in conjunction with coagulants.

　　6. Priority should be given to using 525 # ordinary Portland cement. If there is no available source, 425 # ordinary Portland cement can be used instead. When there is a drop in the concrete underwater, the amount of cement used should generally not be reduced

　　Less than 380kg/m3.

　　7. When adding admixtures (slag or fly ash) to underwater concrete, the pumping performance can be significantly improved.

　　8. The concrete mix proportion should use medium sand, with a recommended sand ratio of 38-43%. The stone grading is generally in the range of 5-25mm, and the large particle size should not exceed 40mm.

　　9. Underwater construction equipment such as conduits and pumps can be used for continuous construction, while open hanging tanks, chutes, handcarts, and other equipment can be used for intermittent feeding construction.

　　10. The construction environment generally requires a static water state, with a concrete drop of less than 0.5m.

　　Main technical parameters

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• Underwater non dispersing flocculant