High Range Pumping Water Reducing Admixture
MNC-P2 type high rangepumping water reducing admixture is a new tan powder additive that consists ofprincipal naphthalene-based superplasticizer,some retarding component and air-entraining component. It is applicable tocommercial concrete, big flowing concrete, mass concrete and pumping concretemixed on-site.
Our high range pumping water reducing admixture is an ideal material to producehigh-quality pumping concrete with less than 80 carbon atoms. It featuresstable chemical properties, good safety performance, non-toxic, odorless,noncombustible, non-crystallization in winter, above 22% of water reducingrate, early strengthening function, good durability, small concrete shrinkageand good adaptability to various cement especially mixed with superfine mineraladmixture. Besides, it controls premature hydrationeffectively and has distinct retarding effect on initial set by 10 hours oraccording to customer’s requirement for appropriate adjustment. With small lossin 2 hours and certain air content, our product can efficiently improveconcrete flexural strength, elastic modulus of concrete, waterproof andimpermeability.
RecommendedMix Design
| Concrete Strength Grade | Concrete Mixing Rate (kg/m3) | Compressive Strength (Mpa) | ||||||||
| Cement (42.5) | Gravel | Sand | Pumping Aid | Fly Ash | Water | 3day | 7day | 28 day | ||
| C10 | 150 | 830 | 1130 | 4.0 | 120 | 170 | 9.1 | 13.1 | 19.2 | |
| C15 | 170 | 830 | 1140 | 5.0 | 110 | 170 | 10.5 | 15.3 | 24.8 | |
| C20 | 230 | 790 | 1100 | 6.0 | 100 | 165 | 12.2 | 17.7 | 29.6 | |
| C25 | 250 | 780 | 1100 | 7.0 | 100 | 165 | 16.7 | 23.8 | 37.5 | |
| C30 | 280 | 740 | 1100 | 10.0 | 100 | 165 | 21.0 | 21.5 | 42.0 | |
| C35 | 320 | 720 | 1100 | 10.5 | 100 | 165 | 24.0 | 37.4 | 52.2 | |
| C40 | 350 | 720 | 1068 | 11.0 | 95 | 165 | 27.0 | 37.1 | 54.3 | |
| C45 | 380 | 720 | 1045 | 12.0 | 90 | 165 | 29.0 | 38.2 | 56.8 | |
Dosage
Powder dosage amounts to 0.7% to 1.5% of the amount of cement, while commondosage is 1.0% of the amount of cement.
Usesand Packing
1. Dry powder product can be applicable toconcrete directly or after being diluted to solution of differentconcentrations.
2. When used with expansion agent, our product requires an extra 30-secondagitation.
3. Powder product adopts woven bag with plastic liner, and net weight of eachbag is
