GK-9A Air Entraining Admixture

Functional additives

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DESCRIPTION：GK-9A represents an air entraining agent, based on modified natural resin, resulting in good air entrainment and stable performance. It increases the frost-thaw resistance and impermeability of concrete, and additionally improves the workability observably.

USES：GK-9A is widely used in standard concrete and roller-compacted concrete (RCC) for hydraulic engineering projects.

CHARACTERISTICS：

GK-9A offers the following advantages:

* Water reduction capacity above 6% can be achieved.

* Improves freeze/thaw resistance of concrete;

* Improves workability of fresh concrete and avoids bleeding;

* Improve durability of concrete;

* No corrosion effect on reinforcement;

* Produces desired air void structure in concrete.

PRODUCT DATA

Chemical Base	Modified natural resin
Appearance/Colour	Paste/Yellow to brown
Packaging	Barrel 225kg, IBC 1200kg or bulk transport
Storage Conditions	Store in dry conditions, protected from direct sunlight, water and frost.
Shelf-life	At least 6 months if stored properly. If expired, it can only be used after inspection
Density(at 25C)	1. 15— 1.26g/cm3
pH Value(25C)	9— 11
Solid Content	≧40% (See CoA for details)
Chlorine Content	≤ 0. 1%
Alkali Content	≤ 3.5%

APPLICATION

RECOMMEND DOSAGE：0.003% to 0.2% by weight of cementitious material.

USING METHOD：

Dilute GK-9A to 1%-2% concentration, and add into fresh concrete.

NOTES ON APPLICATION：

1. Before using, dilute GK-9A with water (low hardness) in 30 minutes.

2. GK-9A is compatible with all other GK products as following:

— GK Polycarboxylate Water Reducing Admixtures

— GK Pumping Agents

— GK State regulator.

If combined with the above, it is suggested to determine the performance experimentally or consult our technical services department.

3. It cannot be added into polycarboxylate-based water reducers directly, but it can be added into concrete separately in combination with polycarboxylate water reducers, which will not influence its air entraining and stable performance.

Basis of Product Data	All technical data stated in this Technical Data Sheet are based on standard laboratory tests. Actual measured data may vary due to circumstances beyond our control.
Local Restrictions	Please note that as a result of specific local regulations the declared data for this product may vary from country to country. Please consult the local Technical Data Sheet for the exact product data.
Health and Safety	For information and advice on the safe handling, storage and disposal of chemical products, users should refer to the most recent Material Safety Data Sheet containing physical, ecological, toxicological and other safety related data.
Protective Measures	Avoid contact with skin. Please wash immediately with clear water when the product contacts skin and/or eyes. It should timely be taken medical treatment if any allergies and/or other adverse reactions happen.
Ecology/ Waste Disposal	Do not dispose of into water or soil, but according to local regulations.
Transportation Class	Non-hazardous.
Toxicity	Non-toxic.
Disclaimer	The information, and, in particular, the recommendations relating to the application and end-use of Chang’An Yucai products, are given in good faith based on Chang’An Yucai’s current knowledge and experience of the products when properly stored, handled and applied under normal conditions in accordance with Chang’An Yucai’s recommendations. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product must test the product’s suitability for the intended application and purpose. Chang’An Yucai reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Technical Data Sheet for the product concerned, copies of which will be supplied on request.