GK-3D Shield Foaming Agent

Functional materials

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DESCRIPTION：

GK-3D foam is formulated of multiple surfactants, stabilizers and polymers, with the carrier water. When using it, after mixing with water, inject it with compressed air, then the liquid expands to produce foam, which has a certain surface viscosity and elasticity, and the liquid inside the foam also has a certain viscosity, which can slow down the speed of thinning of the liquid film, as well as a certain strength producing a certain supporting force. The product has strong adaptability to different soils, and offers high foaming rates, rich bubbles, uniform fineness, strong stability and it is widely used in the tunnel excavation, as it can reduce the mechanical wear of the shield machine, adjust the plastic flow of soil in the soil silo, and reduce the permeability of residual soil. Due to the change of pressure, it can be defoaming by itself when using and thus does not require any add additional defoaming agent

USES：

GK-3D is widely utilized in earth pressure balance (EPB) shield construction and earth pressure balance (EPB) pipe jacking construction.

CHARACTERISTICS

Chemical Base	Mixtures of organic substance
Appearance/Color	Liquid/light red and transparent (color can be adjusted)
Packaging	Barrel 225kg, IBC 1100kg or bulk transport
Storage conditions	Store in dry conditions under the temperature of 5C—30C, protected from direct sunlight, water and frost
Shelf-life	At least 12 months if stored properly. If expired, it can only be used after inspection.
Density (at 25C)	1— 1. 1 g/mL
pH Value (at 25°C)	7—8
Half-life of liquidate	290s—480s
Foaming ratio	25—30 times

APPLICATION
RECOMMEND DOSAGE	20—30kg per meter
USING METHOD	Dilute GK-3D 20—50 times, stir it thoroughly.
NOTES ON APPLICATION	Prevent moisture and impurities from entering.
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.