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High Range Water Reducer Accelerator

MUHU(China) Construction Materials Co,.Ltd

High Range Water Reducer Accelerator

Delivery Time : within 6 working days(depends on your quantity)
Place of Origin : China
Brand Name : MUHU
Sample Price : Depending on the present product price
Category : Concrete
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Product information:

Hardening accelerating and water reducing admixture, no calcium chloride,GB 8076-1997 and GB50119-2003

Description

MNC-A1 is a non-chloride set-accelerating water-reducing admixture, conforming to GB 8076-1997 and GB50119-2003. MNC-A1 does not contain calcium chloride and is non-corrosive to reinforcing steel, metal decks and metal components of admixture storage.

MNC-A1 significantly accelerates setting time, and reduces the quantity of mixing water necessary to produce concrete of a given consistency, while providing greater economy for a given strength. It increases strengths and significantly improves permeability, workability and finishing characteristics.

Uses

1. This product is designed for the constructions requiring earlier strength for normal concrete, steel-reinforced concrete, and pre-stress concrete under normal temperature, low temperature and negative temperature (above -8 degree C).

2. It can be applied to deposit and pre-cast concrete, pre-stressed reinforced and fly-ash-cement concrete. It is compatible with regular Portland cement, Portland slag and pozzolanic cement. Intended for winter operations.

3. Suitable for self-cured concrete and its formulations. It has remarkable effects of water reduction and enhancement, especially at the early stage. The modulus and site utilization can be improved.

Advantages

1. Appearance: Dark brown powdery agent. Non-poisonous, odorless, non-inflammable and non-corrosive to steel bars.

2. As a combined super accelerator, it can reduce water and enhance strength.

3. As a condition of blending where cement amount and collapsibility are fixed, water reduction exceeds 18%. Compression strength exceeds 120%, 80%and 30%on the 1st, 3rd day and 28th day after application respectively. At the early stage, strength can rise to desired level in 3 days. Greater enhancement will be shown at the end . As the result, all setting properties will be improved greatly.

4.15% of cement can be reserved as a condition of blending where collapsibility and strength are fixed.

Recommended Blend Dosage & Directions

1. The blend dosage normally ranges from 2.5%. The standard blend dosage is established at 2.5%.

2. The powdery agent can be agitated together with cement. Accurate measurement is essential.

3. A30-second agitation is required to achieve good homogeneity.

Package, Storage & Handling

1. Woven fabric bag with plastic liner. Net weight: 25kg+/-0.13 kg or 50 kg+/-0.25 kg.

2. Cautions should be taken to prevent form being torn by sharp-ended objects while packages are transferred or delivered.

3. It should be stored in a dedicated warehouse that is well-ventilated and dry. It remains effective for two years. At the expiration, re-use is allowed if the testing results fall within the established range. In case of humidity contamination, re-use is allowed after drying and crushing

Parameters & Acceptance Criteria (For Reference)

Parameters

Criteria

Actual Results

Parameters

Criteria

Actual Results

Water Reduction, %

>=18

20.4

Compression strength, %

1d

120

225

Water Penetration, %

<=90

90

3d

180

186

Air Content, %

<=3.0

2.5

7d

160

137

Temporal Distribution for setting (min)

Initial setting time

-90-+90

+57

28d

130

134

Terminal setting time

+55

Shrinkage, %

28d

<=135

120

Corrosion to steel bars

None

None

Note: Standard Blend Dosage:2.5 %(as cement amount)


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