GK-UEA Expansive Agent

Cement based materials

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DESCRIPTION

Concrete utilizing GK-UEA will expand moderately. Under the constraints of reinforcing steel, it can turn into a certain compressive stress to offset the tensile stress produced of concrete shrinkage, which is the so-called crack shrinkage compensation to achieve.

USES

It is used in cement-based building materials, especially suitable for concrete works of anti-crack, anti-seepage, joint, filling, such as all kinds of pools, underground waterproofing works, dam backfill slot backfill, mortar waterproof layer and other concrete (mortar), etc.

CHARACTERISTICS

GK-UEA offers the following advantages:

* High expansion efficiency and effective concrete shrinkage compensation;

* Reduce shrinkage and improve the durability of concrete;

* Good compatibility with common concrete admixtures and minerals, no negative effect on the construction performance of concrete;

* No corrosive effect on reinforcement.

PRODUCT DATA

Chemical Base	Sulfur aluminate and other expansion sources
Appearance/Colour	Powder/gray to brown
Packaging	50kg plastic bags, single palette ( 1500kg)
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.
Fineness	Specific surface area	≥ 200m2/kg
	1. 18mm sieve	≤ 0.5%

APPLICATION

RECOMMEND DOSAGE

6% - 12%, the exact dosage should be confirmed according to the concrete test based on the requirement and on-site situation.

USING METHOD

Items		Value
		Type Ⅰ	Type Ⅱ
Restrained expansion rate	7d Impegnate	≥ 0.035 %	≥ 0.050 %
	21d In air	≥ -0.015 %	≥ -0.010 %
Compressive strength	7d	≥ 22.5 MPa
	28d	≥ 42.5 MPa

NOTES ON APPLICATION

1. GK-UAE is compatible with common concrete admixtures and minerals.

	2. If overdosed, concrete strength and duration will be affected. 3. Mix GK-UAE evenly in the concrete, avoiding uneven expansion.
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.