High Range Water Reducing and Retarding Admixture

High Range Water Reducing and Retarding Admixture
High Range Water Reducing and Retarding Admixture
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High Range Water Reducing and Retarding Admixture

High Range Water Reducing and RetardingAdmixture, MNCHHJ Type

MNC-HHJ type high rangewater reducing and retarding admixture is grayish brownpowder and naphthalene-based superplasticizer,which features retarding and air-entraining. It has high water reducing ratethat ranges from 15% to 25%, and it can save 15% to 20% of cement quantity.

High range water reducing and retarding admixture can retards the initial andfinal set of concrete, extending the initial setting time of Portland cementconcrete by 2 to 3 hours at 21.It is also used wherever a delayed setting is needed to insure sufficientdelivery, placement, vibration or compaction. Due to significant enhancingeffect, retarding effect before initial set and hardening accelerating effectafter final set, our product can obviously improve concrete fluidity,workability and strength of different ages. Also, concrete mixed with ourproduct can provide high impermeability and freeze-thaw resistance.

Our high range water reducing and retarding admixture is particularly suitablefor pumping concrete, commercial concrete, high-flow concrete, mass concreteand roller compacted concrete, all of which require large reduction of cementquantity and special property. Besides, it is applied to plain concrete,reinforced concrete and mass concrete in areas such as basement, wharf, dyke,tunnel, bridge, pool, water tower, etc. Complexedwith silica fume or ultra-fine mineral admixture, our product can be made forhigh strength concrete with less than 80 carbon atoms. Also, it is widelyadapted to various types of cement.

Dosage Range and Use Method
1. Dosage of high range water reducing and retarding admixture amountsto 0.4% to 1.0% of the weight of total cementitious material, while therecommended dosage is 0.5%.
2. It can be added during mix or after mix, while the latter approach ispreferential.

Packaging of High RangeWater Reducing and Retarding Admixture
Our product uses woven bag with plastic liner witheach bag weighing 25 kg.


 

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