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Accelerating admixture used in fast concrete repair road construction
1.Improve the quality
2.Non-chlorine salt
3.Low-alkali
Accelerating admixture used in fast concrete repair road construction
Accelerating admixture is a new type of high efficient accelerator developed by Qingdao Hongsha
polymer materials Co., Lt, its technical performance and economic benefits is superior to the similar products in domestic market, and it is widely used in spray concrete engineering such as railway
and highway, tunnel, coal mine roadway,hydropower,and other concretework with quick setting
requirements (plugging , rapid repair, etc.).
The technical performance of Accelerating admixture as follows:
Appearance | Gray powder | |
Dosage | 4-6% powder | |
Setting time(min) | Initial setting | 5max |
Final setting | 10max | |
Compressive strength | 1d( Mpa) | 6min |
28d(%) | 75min (conform to the index of "sprayed concrete accelerator" JC477-2005 ) | |
Property | Weakly alkaline, non-toxic, non-flammable, non-chlorine salt, no corrosive effect on steel | |
Spray concrete with this product has small loss of the later strength, and low resilient rate, a jet of highthickness, is conducive to improve the quality and durability of concrete spray engineering,
has obvious technical and economic benefit.
Construction requirements:
1.For in-field use,do anti-corrosion measures, accurate measurement, and the powder after
opening the packing should be used once, the liquid shall be sealed.
2.When sprayed concrete construction should use the new factory portland cement, ordinary portland cement, slag portland cement, if the cement expired, moisture caking, low ambient temperature, it willaffect the results.
3.Shotcrete should adopt the maximum particle diameter of not less than 20mm of gravel or crushed stone, sand fineness modulus 2.8-3.5.
High quality of retarding superplasticizer concrete additive,
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More details about Accelerating admixture, please send me an e-mail.thank you.
