1. Product Cert.No:
PT 062002
Suite 1208, Level 12, Amcorp Tower, Amcorp Trade Center,No.18
Persiaran Barat, 46050 Petaling Jaya,
Selangor,Malaysia
An International Standard Compliant Product :
Standard : IEC 60794-5:
Microduct Cabling for Installation by Blowing”
MICRO TRENCHING FOR FTTx
In compliance to L-49 ITU-T and L- 48 ITU-T Guidelines

2. Name of Company : T.T EHSAN SDN BHD
Date incorporated : 11th.September 2002
Registration : MoF Malaysia
Directors : Raja Azman Shah – M.D
Tengku Rahimah Tahir – E.D
Raja Hazwan Shah – Director
Product representation : Microduct & Air Blown Solution
KNET Co.Ltd, South Korea
Sole Importer & Distributor
Composite Hand-hole
RDT Access Chambers , UK
Exclusive Distributor
Cold asphalt Filler
China, - Sole Importer

3. PRODUCTS OF T T EHSAN SDN BHD (1)
Air Blown
Cable (ABC)
24 to 288
core
Single Mode7 way Direct Buried
Air Blown Fiber (ABF)
(DB)Microduct 24 way Direct Install
2 to 12 core Single Mode ABF/C Air
(DI) Microduct
Blow Machine
Micro Trenching Machine - WET Micro Trenching Machine - DRY Cold Asphalt Back Fill
Steel Body Hand hole Modular Composite Hand hole / Modular Hand Hole
for Carriageway with Manhole for Utility with D400 With Cast Iron Cover Modular Hand hole cum Pedestal
BS125 certification certification A15 Certification with UL and BS124 certification

4. Advantages:
The process has the following advantages over the conventional processes:
The rollout of fibre networks is 10 times faster, and therefore, much more cost-effective.
 Because it is faster, the process is much less disruptive to the public than the old-fashioned method.
Duct installation is secure.
 The process has, as a consequence, the development of unskilled labour into skilled labour,
especially with regard to equipment drivers and operators, as it requires highly trained and skilled
individuals,rather than unskilled labour gangs. In effect, this skills transfer is a form of technology
transfer, which can only be to the benefit of all the people of the country.
 The process directly creates opportunities for businesses like asphalt, backfill material, cement and sand
suppliers, as well indirect opportunities as for the ancillary suppliers to the main suppliers contracted
to TTE.
Detailed Route Survey
A detailed survey will be carried out to establish the exact placing and coordinates of all Manholes,
Road-crossings and positioning of the trench in the specific road surface. The end result of the survey will
include a full set of drawings, which will constitute part of the As-Built drawings as well as the necessary
drawings for the Way-leave application. These will include:
• Detailed route drawing (Typically A1 or A0)
• Detailed line drawing (A2 or A1)
• Detailed drawings for manhole placements and road-crossings

5. Ground Penetrating Radar Surveys (GPR)
Since local municipal councils cannot provide accurate details of
existing buried utilities, a GPR (Ground Penetrating Radar) survey is
performed. This entails a team walking the proposed route with a GPR
device. GPR surveys are performed before trenching in metropolitan
area starts in order to minimize disruption of existing services. The
GPR survey will accurately detect the position and depth of any existing
buried utilities.
Operating in 400MHz and 600MHz frequencies band the GPR can
detect existing services up to 2m deep. The results of the survey is
electronically stored and mapped. This information is then included
into the detailed design and survey information.
The process entails micro-trenching in the roadway itself. The trench is
much smaller than can be conventionally excavated and is only 100mm
wide by 250mm deep. This process provides a fast rollout (300 -500m
per machine per day). The process takes place in a convoy and once the
convoy has passed, the trench is completed to the point of surface re-
instatement. Surface re-instatement can only be performed once the
backfill material has cured approximately one to three days after the
backfill operation was performed, depending on the type of backfill
used. During this period, however, the roadway is opened to traffic for
normal use.

6. Trenching
Once existing services have been located and the trench-line has been marked, the trenches are cut
into the roadway using mechanical trenchers. The trenchers cut a 45mm wide by 250mm deep slot into
the road surface, either using a Wet Diamond Cutter or Dry Tungsten Carbide Cutter specially
customised for this purpose built trenching machines
We have developed a locally customised wet & dry vacuum or suction system equipped with noise
suppression and dust , sludge filters to prevent noise, air pollution and sludge splurting.
When the integral waste bin is full the material is dumped into bins and removed by trucks to pre-
approved waste disposal areas.
Micro Trenching Machine - WET Micro Trenching Machine - DRY

7. Duct Laying
Ducts are transported to the working site on a duct trailer, fitted with spindles, to allow for the
simultaneous insertion of up to four different ducts into the trench. Two types of duct trailers can be
used - either with vertical or with horizontal spindles. The ducts (4 in this case) are tied or taped together
and inserted into the trench, after which backfilling commences.

8. Pour Cold Asphalt
Micro Trench Backfilling Into Slot
250mm
45mm
Conventional Micro Slot with
back fill as per L-48 ITU-T

9. COLD ASPHALT PAVEMENT RESTORATION METHOD

10. Backfilling
The trenches are backfilled using one of two techniques: Bitumen Based Soilcrete. Soilcrete is generally used
to backfill trenches. This backfill type is a wet mix type and is made according to the engineer's specification.
It consists of sieved waste material, crusher sand, cement (6%), and bitumen (2%). The backfill is placed in
the trench in layers and compacted with tampers
Our propose method is to use Cold Asphalt Pavement Preservation Composite which comes in 20kg bag
basis, pour into slots, tamper and ready for traffic within less than 1 hour. The Cold Asphalt is guaranteed to
last for more than ten (10) years.
Conventional process Cold Asphalt process – Fill & Tamper Road ready for instant traffic in
Green Technology Less than 1 hour after fill and
tamper