COMPANY PROFILE


Instek Holding Pte Ltd is a private limited company incorporated in Republic of Singapore.

It is a high-tech specialists company in Asia-Pacific region, where its principal business activities include
the research and development, manufacture, supply and application
of the high-tech construction materials - Chemilink™ Series
Products and Technologies; construction of international civil and building projects; engineering consultancy and management; and international import/export trading .

Instek Holding has its own subsidiaries, branches or associate companies in this region and Chemilink Technology Group is its major wholly owned subsidiary for s Chemilink™ busines worldwide.

In September 2004, Instek has signed a global exclusive agreement with Global Technology Development Foundation (GTDF; www.gtdf.org) chaired by Mr. Hardi Kusuma to promote Chemilink™ Technologies & Products into global market.

Instek has its own legally registered Chemilink™ Series Products and Technologies for the infrastructure and construction industry.

The Chemilink™ series have been developed and produced based on the latest scientific results and technologies, in which the key raw materials, semi-finished products and additives are mainly imported from/made in North American and European countries.

It should be noted that some of these series are unique products and technologies in this region.

The main purpose of developing Chemilink™ series is to provide the latest high-tech, superior quality and cost-effective products and innovative application technologies to the infrastructure and building construction industry.

Chemilink™ series have widely been applied in Asia countries for the past over ten years and acknowledged by the relevant government authorities and professionals.
 

Some of these series have been specified and/or endorsed in these countries' public works specifications. Chemilink™ Technologies & Products have brought numerious trade records and good interests to the Company for the past years.

One of Instek's business objectives is to be a leader in this region for construction materials and technologies within the next years, through our own continuously intensive research and development, innovatively introducing the latest scientific results and technologies, and creatively developing the new ones and modifying the existing to satisfy/meet various local needs and requirements.

With a focus in the marketing, supply and application of Chemilink™ Series Products and Technologies, but not limited to Chemilink™, Instek, functioning as the Specialist and Contractor, offers its excellent "Total Solution" to clients from feasibility study, design and supply to construction, project management and quality control for the relevant civil and building projects.

Instek does also provide "Chemilink™ Technology Transfer Services" to the local through technical training, construction supervision, project management, quality assurance and quality control.

Furthermore in alliance with its business associates, Instek regionally undertakes various infrastructure and building projects where we are specialised in design and construction of runway/taxiway, highways and main roads, quick and effective treatment of shallow base foundations especially in swampy and soft ground areas, and the chemical- soil stabilisation and chemical-stone/gravel stabilisation.

In building construction, Instek provides a "Total Solution" with a comprehensive range of building materials and services which cover most areas of the construction and have higher technical contents, superior quality and performance, easy, simple and fast installation, practical improvement and modification, and quick as well as effective technical response.

Chemilink™ SS-108

Soil Stabilizing Agent

Chemilink™ SS-108 is a polymer modified cementitious chemical binder delivered in fine powder form.

It has specially been developed for soil stabilization in tropical areas to improve problematic soil conditions with frequent rainfall, high water table, lack of good and economical construction materials and unsuitable, weak, or peat soils. Chemilink™ SS-108 sub-series includes several similar but independent-to-use products to treat most known soils at different conditions.

Chemilink™ SS-108 has successfully been applied in South-East Asia since 1994 for many projects of such as airport runways, highways, shipyard platforms, public/private roads and parking yards.

It has been verified by many countries’ authorities and endorsed in some countries’ public works specifications. It has also been verified and applied in China.

Technical Data Range (Stabilized Soils)
Soil Types
 
Dosage (%)
 
CBR* (%)
 
UCS* (MPa)
 
UCS* (MPa)
 
Sandy/ Silty/ Clayey Soils 2 to 4 30 to 210 0.7 to 5.0 10-7 to 10-11

* 7-day curing or 4-day continuous soaking


Road Cross Section


Stabilized Soil Samples


Bare Road Surface

 

Functions
To improve and maintain the soaked strengths of soils and thereby to improve the bearing capacity of sub-grade or stabilized soil through binding of soil particles and immediate chemical reaction with soils;

To form a semi-rigid platform with a certain tensile strength and thereby to reduce total settlements and to minimize differential settlements;

To decrease the compressibility and permeability of soils and to provide anti-cracking effect, and thereby to reduce or eliminate the potential damages due to
such as swelling, shrinkage and seepage; and

To improve the long-term
performance of soils.
The installation results of Chemilink™ soil stabilization are effective and reliable with a proper quality control. The Chemilink™ SS-108 has been designed to treat most known soils and more effective and economical for sandy and silt soils;

The resulted “platform effect” can significantly reduce total settlements and minimize differential settlements;

The anti-cracking effect and lower permeability and compressibility are the major factors to maintain long-term performance of pavement; and

The chemicals have no damages to
be environment and ozone friendly.
 
 
Benefits Typical Applications
To directly improve the in-situ soil and minimize the usage and transportation of imported fill materials, therefore, to protect the natural environment and cause less disturbances to public traffic;

To maintain the strengths of stabilized soils in soaking conditions thereby to achieve long-term pavement performance especially in low-lying, flood prone and swampy areas;

Easy and fast soil stabilization procedures can enable contractors to complete the project in a shorter period of time than conventional construction method and thus enabling developers to generate more revenue in advance. Furthermore, the construction procedure is also taking into consideration of wet weather factors to eliminate possible losses caused by rain;
Chemilink™ SS-108 stabilized soils/quarries can be used as base course, sub-base course and improved sub-grade for:

Airport runways, taxiways, services roads and parking areas;

Highways, expressways, main national/city roads;

Normal public roads;

Rural/plantation roads and construction/temporary roads (without surface layer);

Various road shoulders;

Shipyards, ports, railways, loading yards, parking bays and etc;

Shallow base foundations; and

Other

Construction Procedure

Spreading Chemilink™SS-108 on the ground to be stabilized;

Mixing Chemilink™ SS-108 with the in-situ soil; and
Compaction
In addition, the results achieved using the Central Mixing Plant could be better.


Mechanical Spreading
 

Mixing by Stabilizer
 

Compaction 1
 

Manual Spreading

Mixing by Rotorvator

Compaction 2

Package and Storage

Package : 25kg/bag, 800 bags/20ft. FCL or 1T/bag, 20 bags/20ft, FCL Storage : One year life-span when stored in a dry and cool place

Health and Safety

Gloves and goggles should be worn. Any splashes to the skin or eyes should be washed off with clean water.

In the event of prolonged irritation, seek medical advice. Powder products should be handled to minimize dust formation. Use a light mask if excessive dusting is unavoidable.

Unicorp Sendirian Berhad Lot 66, Beribi II Industrial Estate,
B.S.B. BE1118 P.O. Box 620, Bandar Seri Begawan BS8671,
Brunei Darussalam
Tel: 673-245 0450, 245 0500, 245 0998
Fax: 673-245 0999 E-mail: unicorp@brunet.bn or unicorpbrunei@brunet.bn


Copyright © Unicorp Sendirian Berhad All Rights Reserved 2005

L Storage : One year life-span when stored in a dry and cool place

Health and Safety

Gloves and goggles should be worn. Any splashes to the skin or eyes should be washed off with clean water.

In the event of prolonged irritation, seek medical advice. Powder products should be handled to minimize dust formation. Use a light mask if excessive dusting is unavoidable.

Unicorp Sendirian Berhad Lot 66, Beribi II Industrial Estate,
B.S.B. BE1118 P.O. Box 620, Bandar Seri Begawan BS8671,
Brunei Darussalam
Tel: 673-245 0450, 245 0500, 245 0998
Fax: 673-245 0999 E-mail: unicorp@brunet.bn or unicorpbrunei@brunet.bn


Copyright © Unicorp Sendirian Berhad All Rights Reserved 2005