Sodium Bentonite Geosynthetic Clay Liner with ASTM Standrand

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Geosynthetic Clay Liner – the "Bentonite liner" in mining works

Geosynthetic Clay Liner (GCL)-also known as Geosynthetic Clay Barrier (GBR-C)-is a needle-punched reinforced composite material composed of a high-expansion powdered sodium bentonite core that combines two durable geotextile outer layers, geotextiles They are fixed together by needle punching, stitching or chemical adhesives. A uniform, multi-directional, shear-resistant hydraulic barrier with self-sealing and re-healing properties is formed.

Due to the excellent pad of GCL, it has become an alternative to compacted clay pads in mining applications. In order to prevent root penetration; increase resistance to drying; bentonite pipe resistance under high water gradient; lower penetration rate; hinder ion exchange and gas barrier. Especially in the presence of corrosive liquids that may affect the properties of bentonite, by adding an extruded polymer coating to the needle punched GCL, it is suitable for more mining applications.

In mining, geosynthetic clay lining is usually used together with geomembrane to provide reliable, efficient, and long-term lining performance to improve economy and environmental performance.

Feature of GCL in mining

● Cost-effective

● Adapt to all kinds of weather

● Easy to install

● Effective barrier under high normal load.

Applications

● Evaporation pond

● Tailings reservoir

● Process solution containment

● Rainwater containment

● Wastewater treatment tank

● Containment and recycling

GCL for mining specification

Property	Test Method	Test Frequency ㎡(ft2)	Unit	Bentomat-ST	Bentomat-DN
Bentonite Swell Index	ASTM D 5890	1 per 50 tonnes	mL/2g ≥	24	24
Bentonite Fluid Loss	ASTM D 5891	1 per 50 tonnes	ml ≤	18	18
Bentonite Mass/Area	ASTM D 5993	4000 (40000)	kg/㎡(Ib/ft2) ≥	3.6(0.75)	3.6(0.75)
GCL Grab Strength	ASTM D 6768	20000 (200000)	N/cm (Ibs/in)≥	60(34)	90(51)
GCL Peel Strength	ASTM D 6496	4000 (40000)	N/cm (Ibs/in)≥	6.1(3.5)	6.1(3.5)
GCL Index Flux	ASTM D 5887	Weekly	m3/㎡/sec≤	1×10-8	1×10-8
GCL Hydraulic Conductivity	ASTM D 5887	Weekly	cm/sec≤	5×10-9	5×10-9
GCL Hydraulic Internal Shear Strength	ASTM D 5321 ASTM D 6243	Periodic	psf(24 kpa)	500psf(24 kpa) Tpe 200psf	500 psf(24 kpa) Tpe 200psf

Notes:

● Bentomat ST is a reinforced GCL consisting of a layer of sodium bentonite between a woven and a nonwoven geotextile, which are needle punched together.

● Bentomat DN is a reinforced GCL consisting of a layer of sodium bentonite between two nonwoven geotextiles, which are needle punched together.

About MTTVS^® factory

MTTVS^® Geosynthetics is a strong company.Which specializes in the research, development, production, promotion and application of geosynthetics, and is the world's leading supplier of geosynthetics. Founded in 2014 and located in Shandong of China, It has ISO9001, ISO14001 and ISO45001 international authoritative management system certifications. We have more than 10 international advanced equipment production lines and a large professional engineering and technical team. We have successfully developed and integrated the core market to create maximum value for customers. We develop, manufacture and provide innovative and reliable geosynthetics to improve the performance of our customers' products.

Our main business is the production and export of one-stop services and products such as geotextiles,geomembranes, geogrids, geocells, three-dimensional composite drainage nets, ecological bags, drainage boards, 3D geomats, plastic safety fence, Geosynthetic Clay Liner(Bentonite GCL), Blind ditch, Flexible permeable hose, The plastic biaxially oriented, Geosynthetics for mining etc.

Our products are exported to 56 countries around the world. Our main customers are from the United States, Germany, Pakistan, India, Kenya, Vietnam, Mirru, Ukraine, Uganda, Bolivia, Ecuador, Australia, France, Sweden, United Kingdom, Hong Kong, Hungary, New Zealand, Poland, Mexico, Brazil, Bangladesh , Thailand, Malaysia, Indonesia, Singapore, Philippines, Sri Lanka, UAE, Saudi Arabia, Qatar, Ghana, Ethiopia, Somalia, Nigeria, South Africa, Swaziland, Mongolia, etc.

Today, we not only manufacture the best quality geosynthetics products, but also provide professional design and installation services. OEM, ODM, custom development and manufacturing can also be provided. MTTVS^® Geosynthetics is a strong brand manufacturer in the production, promotion and sales industry. By providing advanced solutions and products in various applications and markets worldwide, MTTVS^® Geosynthetics continues to set industry standards and become the most important leader.

Welcome global industry partners to discuss cooperation!

MTTVS^® geosynthetics you can be trusted.

In continuous communication with customers, we continue to optimize the humanized design, function and overall design of our Sodium Bentonite Geosynthetic Clay Liner with ASTM Standrand. The culture of trust and respect allows everyone in our company to have a high sense of responsibility and can take responsibility for their own work. We will use rich experience and strict management to cooperate with the company's advanced production equipment.

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